The Lighting Handbook ZG

| Kategorie: Firemní tiskovina  | Tento dokument chci!

Vydal: ZG Lighting Czech Republic s.r.o

Strana 176 z 244







Poznámky redaktora
Manufacturers explosion-proof equipment have provide evidence a quality assurance system tested a “notified body”. Over and above this, this Directive now directly includes the “Basic safety requirements” for explosion-proof equipment.176 The Lighting Handbook Explosion-proofness b Flammable gases, vapours and mists Zone 0 A hazardous explosive atmosphere is present continuously long term. Directive 94/9/EC Directive 94/9/EC specifies the requirements for all devices and protection systems for use explosion-prone areas. Directive 99/92 (Workplace Directive) Also important the description hazard areas explosion-prone workplaces, and a resulting graded safety profile for the “equipment” used. . Zone 22 Includes areas which explosive atmosphere cannot expected occur due disturbance deposited dust. Zone 21 Includes areas which explosive atmosphere consisting dust-air mixtures can expected occur occasionally and short term. Zone 2 A hazardous explosive atmosphere can be expected occur only rarely and, any, short term. A detailed commentary Directive 94/9/EC included the “Directive 94/9/EC by the European Parliament and the Council of March 1994” section. Combustible dusts Zone 20 Includes areas which there perma- nent, long-term frequent explosive at- mosphere consisting dust-air mixtures. Zone 1 A hazardous explosive atmosphere can be expected occur occasionally. As this Directive was drafted according to the EC’s “new approach”, the manu- facturer’s declaration conformity, com- bined with marking the products, was introduced for explosion-proof equip- ment well. Since July 2003, it has superseded all directives explosion protection previously effective European level. an explosive atmosphere should nevertheless occur, this will most probably happen only rarely and short term