This PDF includes GI 2. Ce format PDF contient la Note a l'utilisateur no 2.
1. Scope
1.1 This standard specifies the general requirements for construction, testing and marking of electrical apparatus for explosive gas atmospheres and is supplemented or modified by the following parts of IEC Publication 79 concerning specific types of protection:
- Flameproof Enclosures (Publication 79-1); - Pressurized Enclosures (Publication 79-2); - Sand-filled Apparatus (Publication 79-5); - Oil-immersed Apparatus (Publication 79-6); - Increased Safety (Publication 79-7); - Intrinsic Safety (Publication 79-11).
Note: In order to permit new developments it is recommended that apparatus which does not comply with the requirements of IEC Publication 79 but is recognized as safe for use in explosive gas atmospheres by a national or other appropriate authority shoul d be marked with the symbol 's' (see Clause 25). Such apparatus may be a part of apparatus that complies with the requirements of IEC Publication 79.
1.2 This standard is applicable to electrical apparatus for explosive gas atmospheres where atmospheric conditions for the explosion characteristics of the explosive gas atmosphere are considere d as having pressures in the range 80 kPa (0.8 bar) to 110 kPa (1.1 bar) at a temperature in the range -20C to +60C. Atmospheric conditions outside this range may need special consideration.
1.3 This standard is not applicable to devices whose electrical parameters, according to the manufacturer's specifications, do not exceed any of the values 1.2 V, 0.1 A, 20 J or 25 mW, which need not be certified or marked as required by IEC Publication 79. However, such devices are subject to the requirements of the various parts of IEC Publication 79 if they are connected to a device which contains a source or a storage element of electrical energy which could cause the circuit to exceed these parameters.
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.
For mines and quarry applications, see also CSA Standard CAN/CSA-M421.
Note: Manufacturers designing products for use in Canada may find a helpful summary of the equipment-rated requirements of the CEC, P art I, in CSA Publication Spe-2000.
Canadian Deviations are included in this Standard.
1. Domaine d'application
1.1 La presente norme specifie les regles generales de construction, d'epreuves et de marquage du materiel electrique pour atmospheres explosives gazeuses; elle est completee ou modifiee par les autres parties de la Publication 79 de la CEI concerna nt les modes specifiques de protection, a savoir:
- Enveloppe antideflagrante (Publication 79-1); - Surpression interne (Publication 79-2); - Remplissage pulverulent (Publication 79-5); - Immersion dans l'huile (Publication 79-6); - Securite augmentee (Publication 79-7); - Securite intrinseque (Publication 79-11).
Note. Afin de permettre de nouveaux developpements, il est recommande que les materiels qui ne sont pas conformes aux regles de la Publication 79 de la CEI mais qui sont reconnus comme etant de securite pour des applications en atmospheres explosives gazeuses par une autorite nationale ou autre autorite competente, soient marques du symbole s (voir article 25). De tels materiels peuvent etre une partie de materiels qui sont conformes aux regles de la Publication 79 de la CEI.
1.2 La presente norme est applicable aux materiels electriques pour atmospheres explosives gazeuses lorsque les conditions atmospheriques, pour les caracteristiques d'explosion de l'atmosphere explosive gazeuse, sont supposees avoir des pressions dans la plage de 80 kPa (0,8 bar) a 110 kPa (1,1 bar) et des temperatures dans la plage de -20C a +60C. Les conditions atmospheriques a l'exterieur de ces plages peuvent necessiter des considerations speciales.
1.3 La presente norme n'est pas applicable aux dispositifs dont les parametres electriques, selon les indications du c onstructeur, ne depassent aucune des valeurs 1,2 V, 0,1 A, 20 J ou 25 mW, dispositifs qui ne necessitent ni certification ni marquage exiges par la Publication 79 de la CEI. De tels dispositifs doivent cependant etre soumis aux regles des differentes parties de la Publication 79 de la CEI s'ils sont connectes a un dispositif qui contient une source ou un element de stockage de l'energie electrique pouvant provoquer dans le circuit un depassement de ces parametres.
Cette norme vise la securite des appareils destines a etre installes e t utilises selon le Code canadien de l'electricite, Premiere partie.
En ce qui a trait aux appareils utilises dans les mines et les carrieres, voir aussi la norme CAN/CSA-M421.
Note. Les fabricants de produits concus pour le Canada trouveront un sommaire pratique des exigences du CCE, Premiere parti e, relatives aux appareillages dans la norme CSA Spe-2000.
Cette norme contient des Exigences propres au Canada.
| File Size : | 1
file
, 4.4 MB |
| Note : | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages : | 78 |
| Published : | 01/19/2000 |
