Mgbawa Shenhai-Ihe akaebe
N'ihe gbasara akụrụngwa eletrik arụrụ arụ, na-enyocha usoro nchebe nrụgide na-aga n'ihu na-eguzo dị ka ihe dị mkpa n'ịkwado atụmatụ nchekwa ihe mgbawa nke ngwa ahụ. Akụkụ a na-etolite njirimara bụ isi nke ngwaọrụ eletrik arụrụ arụ.
Ngwaọrụ nchekwa akpaka n'ime sistemu nchekwa nrụgide, tasked with monitoring and managing the system’s operational status, must not become an ignition source for combustible gases. It should either meet specific explosion-proof standards or be located in areas free from mgbawa ihe egwu. Designers must prioritize this factor in their planning.
When integrating explosion-proof automatic safety devices, designers should follow these guidelines:
1. Maka “pb” class pressurized electrical equipment, the automatic safety device’s explosion-proof classification can utilize various types conforming to Ga “Ma” or Gb “Ma” protection levels.
2. Maka “pc” class pressurized electrical equipment, different explosion-proof classifications can be used for automatic safety devices, each corresponding to varying levels of explosion-proof protection.
Ọzọkwa, it’s crucial to recognize that various automatic safety devices are indispensable components of the pressurization protection system. They must consistently provide reliable
“service” mbụ, n'oge, and after the system operates. N'ihi ya, the power source for these safety devices should not coincide with the main circuit. Kwesịrị ekwesị, it should be placed before the main circuit’s mgba ọkụ na-agbawa agbawa or power switch to ensure uninterrupted service, even in the event of a main circuit power outage.