CAN/CSA E1241-1-1-95 (R1999) PDF

CAN/CSA E1241-1-1-95 (R1999) PDF

Name:
CAN/CSA E1241-1-1-95 (R1999) PDF

Published Date:
01/19/2000

Status:
Active

Description:

Electrical Apparatus for Use in the Presence of Combustible Dust - Part 1: Electrical Apparatus Protected by Enclosures - Section 1: Specification for Apparatus (Adopted IEC 1241-1-1:1993, first edition, with Canadian deviations)

Publisher:
Canadian Standards Association / National Standard of Canada

Document status:
Active

Format:
Electronic (PDF)

Delivery time:
10 minutes

Delivery time (for Russian version):
200 business days

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1.1

Scope

This section of IEC 1241-1 is applicable to electrical apparatus protected by enclosure for use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard.

Apparatus within the scope of this standard may also be su bjected to additional requirements in other publications - for example, IEC 79.

This section specifies requirements for design, construction, and test ing of electrical apparatus. Section 2 of IEC 1241-1 gives guidance on the selection, installation, and maintenance of the apparatus.

The ignition protection is based on the limitation of the maximum surface temperature of the enclosure, and on the restriction of dust ingress into the enclosure by the use of "dust-tight" or "dust-protected" enclosures.

This standard does not apply to dusts of explosives which do not require atmospheric oxygen for combustion, or to pyrophoric substances.

The application of electrical apparatus in atmospheres which may contain explosive gas as well as combustible dust, whether simultaneously or separately, requires additional protection measures.

This standard does not take account of any risk due to an emission of flammable or toxic gas from the dust.

The principles of this standard can also be followed when combustible fibres or flyings cause a hazard.

Where the apparatus has to meet other environmental conditions, for example, protection against ingress of water and resistance to corrosion, the method of protection used shall not adversely affe ct the integrity of the enclosure.

This standard applies to the safety of such equipment designed to be installed and used in accordance with the rules of the Canadian Electrical Code (CEC), Part I. Note: Manufacturers designing products for use in Canada may find a helpful summary of the equipment-related requirements of the CEC, Part I, in CSA Publication Spe-2000.

Canadian Deviations are included in this Standard. /

1. Domaine d'application

La presente section de la CEI 1241-1 est applicable aux materiels electriques proteges par enveloppes et destines a etre utilises dans des zones ou la poussiere combustible peut etre presente en quantites qui pourraient conduire a des risques d'incendie ou d'explosion.

Les materiels a l'interieur du domaine d'application de cette norme peuvent aussi etre sujet au remplacement, a la modi fication ou a des regles complementaires dans d'autres publications - par exemple, la CEI 79.

Cette section indique les exigences pour la conception, la construction et les epreuves des materiels electriques. La section 2 de la CEI 1241-1 donne des indications sur le choix, l'installation et l'entretien du materiel.

La protection contre l'inflammation est basee sur la limitation de la temperature maximale de surface de l'enveloppe et sur la limitation de la penetration de la poussiere a l'interieur de l'enveloppe par l'utilisation d'enveloppes protegees ou totalement protegees contre la poussiere.

Cette norme ne s'applique pas aux poussieres d'explosifs qui ne necessitent pas d'oxygene atmospherique pour leur combustion, ou aux substances pyrophoriques.

L'utilisation de materiels electriques dans des atmospheres qui peuvent contenir aussi bien du gaz explosif que de la poussiere combusti ble, soit simultanement soit independamment, exige des mesures de protection supplementaires.

Cette norme ne prend pas en compte les risques dus a une emission de gaz inflammable ou toxique provenant de la poussiere.

Les principes de cette norme peuvent aussi etre suivis lorsque les fibres combustibles ou des particules volantes occasionnent un risque.

Lorsque les materiels doivent satisfaire a d'autres conditions d'environnement, par exemple protection contre la penetration d'eau et resistance a la corrosion, la methode de protection utilisee ne doit pas modifier de maniere dangereuse l'integrite de l'enveloppe.

Cette norme vise la securite des appareils destines a etre instal les et utilises selon le Code canadien de l'electricite, Premiere partie. Note. Les fabricants de produits concus pour le Canada trouveront un sommaire pratique des exigences du CCE, Premiere partie, relatives aux appareillages dans la norme CSA Spe-2000.

Cette norme contient des Exigences propres au Canada.
File Size : 1 file , 2.5 MB
Note : This product is unavailable in Russia, Ukraine, Belarus
Number of Pages : 43
Published : 01/19/2000

History


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