Explosion protection requirements for Zone 1
Thread Content
Summary of the situation: The environmental requirements dictate an explosion-proof classification of Zone 1. When the plant was built, the power supplies for the motors of all pumps, as well as those for the control panels on site and various instrument terminals, were connected using plastic-coated metal hoses along with explosion-proof connectors before being fed into the wiring boxes. Problem solving: Does this type of connection meet the explosion-proof requirements for Zone 1? Is it necessary to replace it with an explosion-proof hose and explosion-proof connector before connecting it to the junction box? Are there any requirements? Since the volume of work is very large, I’m seeking solutions. Thank you!
GB3836.15-2000 Electrical equipment for explosive atmospheres – Part 15: Electrical installation in hazardous locations (except coal mines). Chapters 9 and 10 specify requirements regarding cables and conduit systems in explosive areas. I hope this is helpful to you. Additionally, the existing standards do not require the use of explosion-proof hoses; it is sufficient as long as the way in which the cables are introduced does not compromise the explosion-proof rating of the equipment itself!
GB3836.15-2000 Electrical equipment for explosive atmospheres – Part 15
This post was last edited by yuchenchf on 2017-6-15 14:43. Hello. I am a manufacturer of explosion-proof cable entry devices
Our company’s special type of quick-connect device is an explosion-proof cable entry fitting, which should be suitable for the situation you mentioned
How do you connect a plastic-coated metal flexible hose to an explosion-proof gland? Take a look at our products – they save time and effort