A
Hi Guys,
I'm going over to Meg some 480-volt feeder cables for a small commercial facility. I thought I would I would beef up the report by quoting 2005 NETA standard. I was amazed to find the lower limit is 100 megohm at 1000 volt.
I come from an industrial paper mill where any 480-volt cable was “good to go” above 2 meg.
I realize that the rest of the world does not operate like a paper mill, but do you guys recommend a customer pull new cable in a commercial facility or even a public assembly building if a 480-volt feeder cable megs 30 megohm?
Seems like overkill but I wish to conform to the current “standard of care”.
Plus more work for the electricians.
Does the insurance industry have a post water intrusion lower resistance limit that they are willing to pay for cable replacement?
Thanks,
Andy
I'm going over to Meg some 480-volt feeder cables for a small commercial facility. I thought I would I would beef up the report by quoting 2005 NETA standard. I was amazed to find the lower limit is 100 megohm at 1000 volt.
I come from an industrial paper mill where any 480-volt cable was “good to go” above 2 meg.
I realize that the rest of the world does not operate like a paper mill, but do you guys recommend a customer pull new cable in a commercial facility or even a public assembly building if a 480-volt feeder cable megs 30 megohm?
Seems like overkill but I wish to conform to the current “standard of care”.
Plus more work for the electricians.
Does the insurance industry have a post water intrusion lower resistance limit that they are willing to pay for cable replacement?
Thanks,
Andy