{"id":508,"date":"2019-05-15T10:13:44","date_gmt":"2019-05-15T08:13:44","guid":{"rendered":"https:\/\/www.bbemg.uliege.be\/?page_id=508"},"modified":"2026-02-09T09:53:02","modified_gmt":"2026-02-09T08:53:02","slug":"comment-attenuer-lintensite-des-champs-electriques-et-magnetiques-dans-une-habitation","status":"publish","type":"page","link":"https:\/\/www.bbemg.uliege.be\/fr\/comment-attenuer-lintensite-des-champs-electriques-et-magnetiques-dans-une-habitation\/","title":{"rendered":"Comment att\u00e9nuer l\u2019intensit\u00e9 des champs \u00e9lectriques et magn\u00e9tiques dans une habitation ?"},"content":{"rendered":"[vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][heading]\n<h1>Comment att\u00e9nuer l\u2019intensit\u00e9 des champs \u00e9lectriques et magn\u00e9tiques dans une habitation ?<\/h1>\n[\/heading][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]Cette question nous est pos\u00e9e par de nombreuses personnes. Les inqui\u00e9tudes peuvent \u00eatre li\u00e9es \u00e0 la pr\u00e9sence d\u2019un transformateur, d\u2019une ligne ou d\u2019un c\u00e2ble \u00e0 haute tension 50 Hz, d\u2019un onduleur d\u2019une installation photovolta\u00efque, ou plus rarement \u00e0 l\u2019utilisation d\u2019un appareil \u00e9lectrique\u2026 Tous ces dispositifs et appareils ont en commun la g\u00e9n\u00e9ration de champs \u00e9lectriques et magn\u00e9tiques 50 Hz.<\/p>\n<p>Le champ \u00e9lectrique \u00e9tant facilement att\u00e9nu\u00e9 par les obstacles (arbres, murs des habitations\u2026), nous parlerons principalement ici du champ magn\u00e9tique 50 Hz. A partir des caract\u00e9ristiques des champs magn\u00e9tiques 50 Hz, voyons comment il est possible de r\u00e9duire notre exposition quotidienne.[\/vc_column_text][vc_column_text css=\u00a0\u00bb.vc_custom_1557906977805{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;padding-top: 10px !important;padding-right: 10px !important;padding-bottom: 10px !important;padding-left: 10px !important;border-left-color: #262626 !important;border-left-style: dashed !important;border-right-color: #262626 !important;border-right-style: dashed !important;border-top-color: #262626 !important;border-top-style: dashed !important;border-bottom-color: #262626 !important;border-bottom-style: dashed !important;}\u00a0\u00bb]\n<div class=\"info\">\n<p>En bref :<\/p>\n<ul>\n<li>Un c\u00e2ble dans lequel aucun courant ne circule ne g\u00e9n\u00e8re pas de champ magn\u00e9tique.<\/li>\n<li>S\u2019\u00e9loigner de quelques dizaines de centim\u00e8tres d\u2019appareils \u00e9lectriques et de quelques m\u00e8tres des lignes \u00e0 haute tension est d\u00e9j\u00e0 suffisant pour r\u00e9duire significativement l\u2019exposition.<\/li>\n<li>La disposition des c\u00e2bles permet de r\u00e9duire l\u2019exposition.<\/li>\n<li>Il existe des solutions techniques qui permettent de limiter les champs. Toutefois, elles n\u00e9cessitent une mise en \u0153uvre tr\u00e8s rigoureuse et ne sont pas n\u00e9cessairement tr\u00e8s efficaces. De plus, les mat\u00e9riaux sont g\u00e9n\u00e9ralement tr\u00e8s co\u00fbteux ou n\u00e9cessitent une mise en oeuvre co\u00fbteuse.<\/li>\n<\/ul>\n<p>Une mesure est souvent utile pour quantifier les champs.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb source=\u00a0\u00bb\u00a0\u00bb text=\u00a0\u00bb2013 &#8211; 2017&Prime; font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb google_fonts=\u00a0\u00bbfont_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb link=\u00a0\u00bb\u00a0\u00bb el_id=\u00a0\u00bb\u00a0\u00bb el_class=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bbCaract\u00e9ristiques des champs magn\u00e9tiques 50 Hz\u00a0\u00bb font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bb1. L\u2019intensit\u00e9 du champ magn\u00e9tique est proportionnelle \u00e0 l\u2019intensit\u00e9 du courant qui circule\u00a0\u00bb font_container=\u00a0\u00bbtag:h3|text_align:left|color:%233f3f3f\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]L\u2019intensit\u00e9 du champ magn\u00e9tique mesur\u00e9e \u00e0 proximit\u00e9 d\u2019un appareil \u00e9lectrique d\u00e9pend notamment de l\u2019intensit\u00e9 du courant qui y circule (ou de la puissance, cette derni\u00e8re \u00e9tant proportionnelle au courant). Il en est de m\u00eame aux alentours d\u2019un tableau \u00e9lectrique, d\u2019un transformateur, d\u2019une ligne \u00e0 haute tension\u2026<\/p>\n<p>Le graphique ci-dessous illustre la relation entre la puissance g\u00e9n\u00e9r\u00e9e (points rouges sur le graphique) et l\u2019intensit\u00e9 du champ magn\u00e9tique (courbe bleue) aux alentours d\u2019un onduleur d\u2019une installation photovolta\u00efque (Figure 1). On peut voir les variations de l\u2019intensit\u00e9 du champ magn\u00e9tique entre 10h37 et 17h02 (sonde \u00e0 50 cm de l\u2019onduleur). Les panneaux \u00e9tant orient\u00e9s vers l\u2019est, les valeurs les plus \u00e9lev\u00e9es ont \u00e9t\u00e9 mesur\u00e9es en matin\u00e9e. Les fluctuations sont li\u00e9es \u00e0 la diminution de la production d\u2019\u00e9lectricit\u00e9 (voir les \u00ab points rouges \u00bb) lorsque le soleil \u00e9tait cach\u00e9 par les nuages.[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb495&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb15&Prime;][vc_column_text]\n<p style=\"text-align: center;\">Figure 1 &#8211; Variations de l\u2019intensit\u00e9 de l\u2019induction magn\u00e9tique<br \/>\n(Champ B en \u00b5T, enregistrement toutes les 16 s.) et<br \/>\nla puissance instantan\u00e9e produite (en W, enregistrement toutes les 5 min.)<br \/>\nen fonction du temps<\/p>\n[\/vc_column_text][vc_column_text css=\u00a0\u00bb.vc_custom_1557907410266{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;padding-top: 10px !important;padding-right: 10px !important;padding-bottom: 10px !important;padding-left: 10px !important;border-left-color: #262626 !important;border-left-style: dashed !important;border-right-color: #262626 !important;border-right-style: dashed !important;border-top-color: #262626 !important;border-top-style: dashed !important;border-bottom-color: #262626 !important;border-bottom-style: dashed !important;}\u00a0\u00bb]\n<p style=\"text-align: center;\"><strong>Mise en pratique de cette 1<sup>re<\/sup> caract\u00e9ristique<\/strong>\u00a0:<br \/>\nun c\u00e2ble dans lequel aucun courant ne circule ne g\u00e9n\u00e8re pas de champ magn\u00e9tique.<\/p>\n[\/vc_column_text][vc_custom_heading text=\u00a0\u00bb2. L\u2019intensit\u00e9 du champ magn\u00e9tique diminue avec la distance\u00a0\u00bb font_container=\u00a0\u00bbtag:h3|text_align:left|color:%233f3f3f\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Une caract\u00e9ristique commune des champs est la diminution de leur intensit\u00e9 lorsqu\u2019on s\u2019\u00e9loigne de la source.<\/p>\n<p>Nous avons par exemple effectu\u00e9 des mesures \u00e0 proximit\u00e9 de radio-r\u00e9veils : lorsque la sonde \u00e9tait <strong>contre le r\u00e9veil<\/strong>, nous mesurions des valeurs de <strong>15 \u00e0 25 \u00b5T<\/strong> selon le mod\u00e8le. Au-del\u00e0 de <strong>30 cm<\/strong>, nous \u00e9tions d\u00e9j\u00e0 <strong>sous 0,4 \u00b5T<\/strong>.<\/p>\n<p>Au niveau des lignes \u00e0 haute tension, les chercheurs ont \u00e9tabli qu\u2019\u00e0 9 m d\u2019une ligne 70 kV quand la charge est faible et \u00e0 36 m quand la charge est maximale, on note des valeurs sous les 0,4 \u00b5T.\u00a0 En pratique, la puissance transport\u00e9e dans le r\u00e9seau varie au cours de la journ\u00e9e. En moyenne, \u00e0 15 m des lignes 70 kV, on est en dessous du seuil de 0,4 \u00b5T (voir des informations compl\u00e8tes \u00e0 la page\u00a0<a href=\"https:\/\/www.bbemg.uliege.be\/fr\/la-question-du-risque-sur-la-sante-normes-recherche-et-analyse-de-lexposition\/\">La question du risque sur la sant\u00e9<\/a> (voir Analyse de l&rsquo;exposition).[\/vc_column_text][vc_column_text css=\u00a0\u00bb.vc_custom_1557907444523{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;padding-top: 10px !important;padding-right: 10px !important;padding-bottom: 10px !important;padding-left: 10px !important;border-left-color: #262626 !important;border-left-style: dashed !important;border-right-color: #262626 !important;border-right-style: dashed !important;border-top-color: #262626 !important;border-top-style: dashed !important;border-bottom-color: #262626 !important;border-bottom-style: dashed !important;}\u00a0\u00bb]\n<p style=\"text-align: center;\"><strong>Mise en pratique de cette 2<sup>e<\/sup> caract\u00e9ristique<\/strong>\u00a0:<br \/>\ns\u2019\u00e9loigner de quelques dizaines de centim\u00e8tres d\u2019appareils \u00e9lectriques et de quelques m\u00e8tres des lignes \u00e0 haute tension est d\u00e9j\u00e0 suffisant pour r\u00e9duire significativement l\u2019exposition.<\/p>\n[\/vc_column_text][vc_column_text]<em>Remarque\u00a0: Comment expliquer les diff\u00e9rences importantes entre les champs magn\u00e9tiques mesur\u00e9s \u00e0 proximit\u00e9 des radio-r\u00e9veils\u00a0?<\/em><\/p>\n<p>La puissance de l\u2019appareil, nous l\u2019avons vu dans la 1<sup>re<\/sup> caract\u00e9ristique, joue un r\u00f4le important dans l\u2019intensit\u00e9 des champs magn\u00e9tiques mesur\u00e9s \u00e0 proximit\u00e9. Toutefois, \u00e0 puissances \u00e9quivalentes, comment expliquer les diff\u00e9rences d\u2019intensit\u00e9 de champs\u00a0? Plusieurs variables peuvent intervenir comme par exemple la construction interne des appareils. En effet, dans certains appareils le transformateur est situ\u00e9 dans le radio-r\u00e9veil alors que dans d\u2019autres il est situ\u00e9 au niveau de la prise \u00e9lectrique. Le courant circulant dans le transformateur g\u00e9n\u00e8re des champs magn\u00e9tiques 50 Hz \u00e9lev\u00e9s. Normalement ces champs magn\u00e9tiques sont confin\u00e9s \u00e0 l\u2019int\u00e9rieur du transformateur (c\u2019est le cas des gros transformateurs situ\u00e9s dans les postes \u00e0 haute tension et dans les cabines de distribution) gr\u00e2ce aux t\u00f4les magn\u00e9tiques qui en constituent le noyau\u00a0; cependant, les petits transformateurs \u00e0 usage domestique sont optimis\u00e9s pour \u00eatre l\u00e9gers et comportent alors des fuites importantes.<\/p>\n<p>Le positionnement des c\u00e2bles et composants internes, des bobinages&#8230; jouent \u00e9galement un r\u00f4le dans les valeurs mesur\u00e9es. C\u2019est ce que nous allons voir maintenant.[\/vc_column_text][vc_custom_heading text=\u00a0\u00bb3. Le champ magn\u00e9tique est vectoriel\u00a0\u00bb font_container=\u00a0\u00bbtag:h3|text_align:left|color:%233f3f3f\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]C\u2019est un peu technique mais on va ici comprendre comment l\u2019agencement des c\u00e2bles des appareils et autres dispositifs peut jouer un r\u00f4le dans la r\u00e9duction des champs mesur\u00e9s, et comment cette caract\u00e9ristique peut \u00eatre utilis\u00e9e pour r\u00e9duire l\u2019exposition.<\/p>\n<p>\u00ab Vectoriel \u00bb signifie que le champ a une direction, une intensit\u00e9 et un sens. Sch\u00e9matiquement on a donc :[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb510&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb20&Prime;][vc_column_text]Prenons deux cas particuliers :[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/2&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p style=\"text-align: center;\"><em>a. Les champs sont de m\u00eame intensit\u00e9 et de direction quasi identique, mais de <strong>sens oppos\u00e9<\/strong><\/em><\/p>\n[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb511&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb15&Prime;][vc_column_text]\n<p style=\"text-align: center;\">Le champ r\u00e9sultant est quasi nul<\/p>\n[\/vc_column_text][\/vc_column][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/2&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p align=\"center\"><em>b. Les champs sont de m\u00eame intensit\u00e9, de direction quasi identique et de <strong>m\u00eame sens<\/strong><\/em><\/p>\n[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb512&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb15&Prime;][vc_column_text]\n<p style=\"text-align: center;\">Le champ r\u00e9sultant est quasi doubl\u00e9<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p style=\"text-align: center;\">Figure 2 \u2013 Intensit\u00e9 du champ magn\u00e9tique en fonction de son sens<\/p>\n[\/vc_column_text][vc_column_text]Le positionnement des c\u00e2bles est donc important pour r\u00e9duire l\u2019exposition.<\/p>\n<p>Au niveau des champs magn\u00e9tiques g\u00e9n\u00e9r\u00e9s par une ligne a\u00e9rienne ou un c\u00e2ble souterrain, une attention particuli\u00e8re est maintenant port\u00e9e \u00e0 la disposition des conducteurs (\u00e9loignement r\u00e9duit au maximum, positionnement de l\u2019un par rapport \u00e0 l\u2019autre\u2026) afin de r\u00e9duire les intensit\u00e9s de champs. Mais il n\u2019est pas techniquement possible d\u2019atteindre des valeurs nulles ; c\u2019est le cas en particulier pour les c\u00e2bles aboutissant \u00e0 un transformateur \u00e0 haute tension : les trois conducteurs (appel\u00e9s dans le jargon \u00ab conducteurs de phase \u00bb) s\u2019\u00e9cartent l\u2019un de l\u2019autre pour aboutir aux bornes du transformateur. Cet \u00e9cartement a pour cons\u00e9quence d\u2019augmenter sensiblement le niveau de champ magn\u00e9tique \u00e0 proximit\u00e9 du transformateur. Comme indiqu\u00e9 plus haut, ce n\u2019est donc pas le transformateur lui-m\u00eame qui est responsable de ces champs mais les c\u00e2bles qui l\u2019alimentent.[\/vc_column_text][vc_column_text css=\u00a0\u00bb.vc_custom_1557907680781{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;padding-top: 10px !important;padding-right: 10px !important;padding-bottom: 10px !important;padding-left: 10px !important;border-left-color: #262626 !important;border-left-style: dashed !important;border-right-color: #262626 !important;border-right-style: dashed !important;border-top-color: #262626 !important;border-top-style: dashed !important;border-bottom-color: #262626 !important;border-bottom-style: dashed !important;}\u00a0\u00bb]\n<div class=\"info\">\n<p style=\"text-align: center;\"><strong>Mise en pratique de cette 3<sup>e<\/sup> caract\u00e9ristique\u00a0<\/strong>:<\/p>\n<p style=\"text-align: center;\">En se basant sur cette caract\u00e9ristique, on comprend qu\u2019une disposition judicieuse des c\u00e2bles et composants internes permet de r\u00e9duire les intensit\u00e9s de champs magn\u00e9tiques. Une autre solution consiste \u00e0 compenser le champ en cr\u00e9ant un contre-champ, c.\u00e0.d. un champ de sens oppos\u00e9 (cf. blindage absorbant ci-dessous).<\/p>\n<p style=\"text-align: center;\">Remarque: Ces solutions demandant des am\u00e9nagements techniques pourront \u00eatre prises par exemple dans des situations professionnelles o\u00f9 les travailleurs sont particuli\u00e8rement expos\u00e9s. Leur mise en \u0153uvre n\u00e9cessite une \u00e9tude pr\u00e9alable et une r\u00e9alisation particuli\u00e8rement soign\u00e9e.<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb source=\u00a0\u00bb\u00a0\u00bb text=\u00a0\u00bb2013 &#8211; 2017&Prime; font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb google_fonts=\u00a0\u00bbfont_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb link=\u00a0\u00bb\u00a0\u00bb el_id=\u00a0\u00bb\u00a0\u00bb el_class=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bbEt le blindage ?\u00a0\u00bb font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Une premi\u00e8re remarque s\u2019impose : les champs magn\u00e9tiques de basses fr\u00e9quences ne sont pas faciles \u00e0 blinder. Aucune solution ne permettra de cr\u00e9er une barri\u00e8re imp\u00e9n\u00e9trable.<\/p>\n<p>Voyons comment att\u00e9nuer le champ magn\u00e9tique 50 Hz :[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/2&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p style=\"text-align: center;\"><strong>a. Blindage absorbant<\/strong> ou conducteur<\/p>\n<p style=\"text-align: center;\">(mat\u00e9riau conducteur peu perm\u00e9able)<\/p>\n[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb513&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb][\/vc_column][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/2&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p style=\"text-align: center;\"><strong>b. Blindage d\u00e9flecteur<\/strong> ou magn\u00e9tique<\/p>\n<p style=\"text-align: center;\">(mat\u00e9riau perm\u00e9able peu conducteur)<\/p>\n[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb514&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bb\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb15&Prime;][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n<p style=\"text-align: center;\">Figure 3 \u2013 Att\u00e9nuation du champ magn\u00e9tique en fonction du type de blindage<\/p>\n[\/vc_column_text][vc_column_text]Le <strong>blindage absorbant<\/strong> utilise les principes \u00e9nonc\u00e9s par les lois de Faraday et de Lenz (voir aussi <a href=\"https:\/\/www.bbemg.uliege.be\/fr\/electromagnetisme\/\">Electromagn\u00e9tisme<\/a>):\u00a0 lorsqu&rsquo;un mat\u00e9riau conducteur est plac\u00e9 dans un champ magn\u00e9tique variable, il appara\u00eet dans celui-ci un champ \u00e9lectrique qui g\u00e9n\u00e8re \u00e0 son tour des courants induits circulaires, appel\u00e9s \u00ab\u00a0courants de Foucault\u00a0\u00bb. Les courants induits g\u00e9n\u00e8rent \u00e0 leur tour un champ magn\u00e9tique qui s&rsquo;oppose aux modifications de flux qui leur ont donn\u00e9 naissance.<\/p>\n<p>Ce type de blindage n\u00e9cessite d\u2019utiliser des mat\u00e9riaux conducteurs comme l\u2019aluminium ou le cuivre, d\u2019une \u00e9paisseur suffisante.<\/p>\n<p>En raison de la distribution des courants induits dans le mat\u00e9riau, ce blindage sera le plus efficace pour att\u00e9nuer les champs perpendiculaires.<\/p>\n<p>Le <strong>blindage d\u00e9flecteur<\/strong> utilise les propri\u00e9t\u00e9s magn\u00e9tiques des mat\u00e9riaux ferromagn\u00e9tiques.<\/p>\n<p>Un mat\u00e9riau ferromagn\u00e9tique est un mat\u00e9riau qui a la capacit\u00e9 de s\u2019aimanter lorsqu\u2019il est plac\u00e9 dans un champ magn\u00e9tique. On parle de perm\u00e9abilit\u00e9 magn\u00e9tique de ce mat\u00e9riau. Les mat\u00e9riaux \u00e0 haute perm\u00e9abilit\u00e9 magn\u00e9tique (en particulier le permalloy mieux connu sous le nom commercial de Mum\u00e9tal ou l\u2019acier au silicium \u00e0 grain orient\u00e9 utilis\u00e9 pour r\u00e9aliser les t\u00f4les de transformateur) sont des candidats potentiels pour ce type de blindage.<\/p>\n<p>Le champ est canalis\u00e9 \u00e0 l\u2019int\u00e9rieur du mat\u00e9riau. Ce type de blindage sera plus efficace en pr\u00e9sence d\u2019un champ tangentiel.<\/p>\n<p>De fa\u00e7on g\u00e9n\u00e9rale, surtout en ce qui concerne le blindage d\u00e9flecteur, pour \u00eatre efficace, il est souvent n\u00e9cessaire de recourir \u00e0 un blindage ferm\u00e9 qui entoure compl\u00e8tement, soit la source de champ, soit la zone \u00e0 prot\u00e9ger. La qualit\u00e9 des contacts entre les diff\u00e9rentes parties du blindage est aussi essentielle et il sera parfois utile de combiner les techniques de blindage absorbant et d\u00e9flecteur (Figure 4).[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb515&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbFade In\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb margin_bottom=\u00a0\u00bb15&Prime;][vc_column_text]\n<p style=\"text-align: center;\">Figure 4 \u2013 Sch\u00e9ma d\u2019un blindage alliant les propri\u00e9t\u00e9s absorbante et d\u00e9flectrice afin d\u2019att\u00e9nuer les champs magn\u00e9tiques li\u00e9s \u00e0 une source plac\u00e9e dans le sous-sol d\u2019une habitation.<\/p>\n[\/vc_column_text][vc_column_text css=\u00a0\u00bb.vc_custom_1557907911217{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;padding-top: 10px !important;padding-right: 10px !important;padding-bottom: 10px !important;padding-left: 10px !important;border-left-color: #262626 !important;border-left-style: dashed !important;border-right-color: #262626 !important;border-right-style: dashed !important;border-top-color: #262626 !important;border-top-style: dashed !important;border-bottom-color: #262626 !important;border-bottom-style: dashed !important;}\u00a0\u00bb]\n<div class=\"info\">\n<p>Techniquement des solutions existent, mais il faut savoir qu\u2019en pratique, elles n\u00e9cessitent une mise en \u0153uvre tr\u00e8s rigoureuse et ne sont pas n\u00e9cessairement tr\u00e8s efficaces.\u00a0 Des \u00e9tudes sur des produits d\u00e9di\u00e9s disponibles dans le commerce ont m\u00eame montr\u00e9 que si le champ magn\u00e9tique 50 Hz \u00e9tait un peu r\u00e9duit, le champ \u00e9lectrique 50 Hz, quant \u00e0 lui, \u00e9tait parfois renforc\u00e9 (Leitgeb &amp; Cech, 2007).<\/p>\n<p>Par ailleurs, ces mat\u00e9riaux sont g\u00e9n\u00e9ralement co\u00fbteux ou n\u00e9cessitent une mise en \u0153uvre co\u00fbteuse (soudage de l\u2019aluminium par des techniques sp\u00e9ciales).<\/p>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb source=\u00a0\u00bb\u00a0\u00bb text=\u00a0\u00bb2013 &#8211; 2017&Prime; font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb google_fonts=\u00a0\u00bbfont_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb link=\u00a0\u00bb\u00a0\u00bb el_id=\u00a0\u00bb\u00a0\u00bb el_class=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bbEn conclusion\u2026\u00a0\u00bb font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Ces mesures sont pr\u00e9ventives car, dans la majorit\u00e9 des situations quotidiennes, les valeurs de champs sont faibles. Lors d\u2019une campagne de mesures men\u00e9es par notre groupe de recherche entre 2001 et 2009, les chercheurs ont montr\u00e9 que plus de 95% des enfants test\u00e9s \u00e9taient expos\u00e9s \u00e0 des valeurs inf\u00e9rieures \u00e0 0,4 \u00b5T.<\/p>\n<p>Une mesure est souvent utile pour quantifier le champ magn\u00e9tique. Dans le doute, la solution la plus efficace est d\u2019\u00e9loigner la source ou de s\u2019\u00e9loigner de la source.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb source=\u00a0\u00bb\u00a0\u00bb text=\u00a0\u00bb2013 &#8211; 2017&Prime; font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb google_fonts=\u00a0\u00bbfont_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb link=\u00a0\u00bb\u00a0\u00bb el_id=\u00a0\u00bb\u00a0\u00bb el_class=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bbR\u00e9f\u00e9rences\u00a0\u00bb font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Leitgeb N, Cech R. Electromagnetic shielding mats: facts and fiction. Radiat Prot Dosimetry. 2007;123(4):450-6. Epub 2006 Dec 6.<\/p>\n<p>Leitgeb N1, Cech R. (2005). Unwirksamkeit von Elektrosmog- Abschirmmatten. Teil 1: Niederfrequenzbereich [Inefficiency of electrical pollution-shielding mats. 1: low frequency range]. Biomed Tech (Berl). 2005 Jun;50(6):181-7.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb source=\u00a0\u00bb\u00a0\u00bb text=\u00a0\u00bb2013 &#8211; 2017&Prime; font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb google_fonts=\u00a0\u00bbfont_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb link=\u00a0\u00bb\u00a0\u00bb el_id=\u00a0\u00bb\u00a0\u00bb el_class=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bbDocuments &amp; Liens\u00a0\u00bb font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n<ul>\n<li><a href=\"https:\/\/www.bbemg.uliege.be\/files\/FR\/mf-home-fr.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Information sur l&rsquo;att\u00e9nuation des champs 50 Hz en PDF (396 Ko)<\/a><\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb source=\u00a0\u00bb\u00a0\u00bb text=\u00a0\u00bb2013 &#8211; 2017&Prime; font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb google_fonts=\u00a0\u00bbfont_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb link=\u00a0\u00bb\u00a0\u00bb el_id=\u00a0\u00bb\u00a0\u00bb el_class=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_custom_heading text=\u00a0\u00bbAutres th\u00e8mes qui pourraient vous int\u00e9resser &#8230;\u00a0\u00bb font_container=\u00a0\u00bbtag:h2|text_align:left|color:%2349b0e5&Prime; use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]\n<ul>\n<li><a href=\"https:\/\/www.bbemg.uliege.be\/fr\/notions-delectricite\/\">Notions d&rsquo;\u00e9lectricit\u00e9<\/a> &#8211; Notions d\u2019\u00e9lectricit\u00e9 \u00e0 avoir en t\u00eate afin d\u2019aborder sereinement le domaine de l&rsquo;\u00e9lectromagn\u00e9tisme et ses champs \u00e9lectriques et magn\u00e9tiques.<\/li>\n<li><a href=\"https:\/\/www.bbemg.uliege.be\/fr\/concept-de-champs\/\">Concept de champs<\/a> &#8211; Les champs \u00e9lectrique et magn\u00e9tique sont des concepts distincts qui ont \u00e9t\u00e9 invent\u00e9s pour expliquer les ph\u00e9nom\u00e8nes d&rsquo;interaction \u00e0 distance de l&rsquo;\u00e9lectricit\u00e9. (&#8230;)<\/li>\n<li><a href=\"https:\/\/www.bbemg.uliege.be\/fr\/electromagnetisme\/\">Electromagn\u00e9tisme<\/a> &#8211; L&rsquo;\u00e9lectromagn\u00e9tisme \u00e9tudie les interactions \u00e0 distance des charges, des courants et des champs \u00e9lectrique et magn\u00e9tique. (&#8230;)<\/li>\n<li><a href=\"https:\/\/www.bbemg.uliege.be\/fr\/utilisation-des-proprietes-electromagnetiques\/\">Utilisation des propri\u00e9t\u00e9s \u00e9lectromagn\u00e9tiques<\/a> &#8211; Comment fonctionnent nos appareils \u00e9lectriques? A partir des exemples d\u00e9crits, nous aurons un aper\u00e7u g\u00e9n\u00e9ral du fonctionnement d\u2019appareils qui transforment l\u2019\u00e9nergie \u00e9lectrique en \u00e9nergie thermique et\/ou m\u00e9canique ou qui utilisent les propri\u00e9t\u00e9s de l&rsquo;\u00e9lectrostatique et de l&rsquo;\u00e9lectromagn\u00e9tisme.<\/li>\n<li><a href=\"https:\/\/www.bbemg.uliege.be\/fr\/trajet-de-lelectricite\/\">Trajet de l&rsquo;\u00e9lectricit\u00e9<\/a> &#8211; Comment fonctionne le r\u00e9seau \u00e9lectrique? Les caract\u00e9ristiques des r\u00e9seaux de transport et de distribution et les principaux \u00e9l\u00e9ments d&rsquo;un circuit \u00e9lectrique domestique, dont le c\u00e2blage monophas\u00e9 et les m\u00e9thodes de protection.<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-sidebar.php","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-508","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comment att\u00e9nuer l\u2019intensit\u00e9 des champs \u00e9lectriques et magn\u00e9tiques dans une habitation ? - BBEMG - Belgian BioElectroMagnetics Group<\/title>\n<meta name=\"description\" content=\"Quelles mesures puis-je prendre pour r\u00e9duire l&#039;intensit\u00e9 des champs \u00e9lectriques et magn\u00e9tiques dans mon foyer ? 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