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VRLA in Class 1 Zone 2 w/ Type Z Purge
Yes, the hydrogen emission seemed to be very small for the size of the Cabin (8x20x9.5). But we have a 9Kva UPS and about 15 backup batteries (60min backup required). So with that many batteries it became more of a concern than having just 1 or 2. The cabin IS a manned space, at all times. Thus...- MECE23
- Post #3
- Forum: IEEE (electrical) Code Issues
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VRLA in Class 1 Zone 2 w/ Type Z Purge
Hello All: I have a control cabin in a NEC 505 Class 1 Zone 2 Area. The cabin is Type Z purged per NFPA 496 Upon loss of purge i can still run equipment, i just have to monitor the environment. If i lose purge i am likely now on UPS battery power. The question is, if the VRLA's are inside the...- MECE23
- Thread
- Replies: 2
- Forum: IEEE (electrical) Code Issues
