Air Gapping Electrical
Air Gapping Electrical
(OP)
Does anyone know of any standards that provide direction about how to air gap electrical to prepare for D & D?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: Air Gapping Electrical
Air gap?
Generally if work is to be done on electrical equipment it is grounded, not "air gapped".
RE: Air Gapping Electrical
The MCCs will be locked out and 'Air Gapped'.
RE: Air Gapping Electrical
I, too, would like to know what that term means.
Goober Dave
RE: Air Gapping Electrical
Air Gap: a physical separation that isolates a connection to a voltage source or potential. Reconnection of physical separation shall require extreme effort, or shall be impossible.
physical act of cutting a 12" to 24" section of raceway/cable. AIR GAPPED.
I can't seem to find anything in the NEC or IEEE and I was hoping I could get some help from this site.
RE: Air Gapping Electrical
Sorry for the misspell Dave. I should have said Decommissioning and Demolition (D & D).
RE: Air Gapping Electrical
I've never run into this, but you're in the right forum. Someone with experience will answer soon I bet.
Good on ya,
Goober Dave
RE: Air Gapping Electrical
As for standards, I'm not aware of any. The demo guys don't trust normal isolation devices, so the standard becomes 'whatever they will accept'. Most will accept a gap of a few inches, as long as it is clearly visible.
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RE: Air Gapping Electrical
RE: Air Gapping Electrical
I have seen people preferring breakers with fuses over MCCB as that can takeout the fuses and put them in pockets while working. (: