{"id":38699,"date":"2023-01-05T12:45:33","date_gmt":"2023-01-05T11:45:33","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&p=38699"},"modified":"2023-07-22T08:57:31","modified_gmt":"2023-07-22T07:57:31","slug":"c22-2-n-286-tableaux-de-commande-et-ensembles-industriels","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-canadienne\/c22-2-n-286-tableaux-de-commande-et-ensembles-industriels\/","title":{"rendered":"C22.2 N\u00b0 286 : Tableaux de commande et ensembles industriels"},"content":{"rendered":"\n\n \n \n \n
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C22.2 N\u00b0286 : 2023<\/strong> est la norme de r\u00e9f\u00e9rence pour la construction des panneaux de contr\u00f4le industriels au Canada. C’est l’\u00e9quivalent de la norme UL 508A pour les \u00c9tats-Unis.<\/p>\n

Auparavant, la norme de r\u00e9f\u00e9rence \u00e9tait la norme C22.2 N\u00b014<\/strong> : \u00c9quipements de contr\u00f4le industriel<\/strong>. Mais il ne s’agissait pas vraiment d’une norme pour la conformit\u00e9 des tableaux de commande de machines, puisqu’elle \u00e9tait r\u00e9dig\u00e9e pour la conformit\u00e9 des composants \u00e9lectriques tels que les contacteurs (contr\u00f4leurs manuels de moteurs dans le langage technique nord-am\u00e9ricain).<\/p>\n

La deuxi\u00e8me \u00e9dition<\/strong> a \u00e9t\u00e9 publi\u00e9e en 2017 et contient une approche diff\u00e9rente de l’UL 508A en ce qui concerne le courant maximal admissible (Iz) des c\u00e2bles. Cette derni\u00e8re n’exige pas de compensation du courant maximal admissible des c\u00e2bles pour plus de trois c\u00e2bles juxtapos\u00e9s. Cela signifie qu’un conducteur en cuivre AWG 10 a un courant admissible de 30 A ; veuillez vous r\u00e9f\u00e9rer au tableau 28.1 de la norme UL 508A. Si 9 conducteurs passent \u00e0 l’int\u00e9rieur d’un panneau de contr\u00f4le, le courant maximal admissible est toujours de 30 A.<\/p>\n

Le tableau 7 de la deuxi\u00e8me \u00e9dition de la norme C22.2 N\u00b0286 est tr\u00e8s diff\u00e9rent du tableau 28.1 de la norme UL 508A. Un conducteur en cuivre AWG 10 avait un courant admissible de 27 A si le panneau de contr\u00f4le \u00e9tait ventil\u00e9. Cette intensit\u00e9 doit \u00eatre corrig\u00e9e en fonction du nombre de conducteurs dans une pens\u00e9e de c\u00e2blage conform\u00e9ment au tableau 8. En d’autres termes, si 9 c\u00e2bles passent \u00e0 l’int\u00e9rieur d’un sch\u00e9ma de c\u00e2blage de panneau de contr\u00f4le, le courant maximal admissible devient 19 A : elle est d\u00e9class\u00e9e !<\/p>\n

Une situation extr\u00eame est celle d’un panneau non ventil\u00e9 : si 9 conducteurs AWG 10 en cuivre circulent dans un circuit de c\u00e2blage, le courant admissible devient 13 A ! C’est toute une diff\u00e9rence par rapport aux 30 A pr\u00e9vus par la norme UL 508A.<\/p>\n

La nouvelle \u00e9dition (troisi\u00e8me) de la norme C22.2 n\u00b0 286 a \u00e9t\u00e9 publi\u00e9e en juin 2023.<\/strong> Elle comporte un tableau 7 enti\u00e8rement r\u00e9vis\u00e9, assez similaire au tableau 28.1 de la norme UL 508A. De ce point de vue, les deux normes sont align\u00e9es.<\/p>\n

Nouveaux aspects<\/strong> contenus dans la troisi\u00e8me \u00e9dition de la norme C22.2 N\u00b0 286 :<\/p>\n

    \n
  1. \u00e9largissement des exigences relatives aux moyens de connexion ;<\/li>\n
  2. exigences suppl\u00e9mentaires pour les embouts et les adaptateurs en queue de cochon ;<\/li>\n
  3. clarification des exigences relatives aux composants de la classe 2 (dispositifs de contr\u00f4le non li\u00e9s \u00e0 la s\u00e9curit\u00e9) ;<\/li>\n
  4. crit\u00e8res de conformit\u00e9 suppl\u00e9mentaires pour les panneaux et les ensembles destin\u00e9s \u00e0 \u00eatre utilis\u00e9s en dehors de la plage ambiante suppos\u00e9e de 0 \u00e0 40\u00b0 C ;<\/li>\n
  5. l’\u00e9largissement des crit\u00e8res de d\u00e9termination de l’intensit\u00e9 de courant de court-circuit (SCCR) ;<\/li>\n
  6. des r\u00e9visions des marquages requis pour le SCCR ;<\/li>\n
  7. la suppression des exigences relatives au centre de commande du moteur ; et<\/li>\n
  8. l’ajout d’essais de d\u00e9charge de traction et de fonctionnement anormal.<\/li>\n<\/ol>\n<\/div> <\/div>\n \n \n
    <\/div>\n \n\n <\/div>\n <\/section>\n\n \n","protected":false},"excerpt":{"rendered":"

    C22.2 N\u00b0286 : 2023 est la norme de r\u00e9f\u00e9rence pour la construction des panneaux de contr\u00f4le industriels au Canada. C’est l’\u00e9quivalent de la norme UL 508A pour les \u00c9tats-Unis<\/p>\n","protected":false},"author":182,"featured_media":38724,"parent":0,"menu_order":44,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[166],"class_list":["post-38699","normativa_tecnica","type-normativa_tecnica","status-publish","has-post-thumbnail","hentry","tipologia_normativa-normes-canadienne"],"acf":{"sottotitolo":"Cette norme s'applique aux tableaux de commande industriels et aux ensembles d'une tension maximale de 1500 V, destin\u00e9s \u00e0 \u00eatre install\u00e9s et utilis\u00e9s dans des lieux non dangereux.","allegati":null},"yoast_head":"\nC22.2 N\u00b0 286 : Tableaux de commande et ensembles industriels - Gt-Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-canadienne\/c22-2-n-286-tableaux-de-commande-et-ensembles-industriels\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C22.2 N\u00b0 286 : Tableaux de commande et ensembles industriels - Gt-Engineering\" \/>\n<meta property=\"og:description\" content=\"C22.2 N\u00b0286 : 2023 est la norme de r\u00e9f\u00e9rence pour la construction des panneaux de contr\u00f4le industriels au Canada. 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