andy32821
Member
- Location
- Orlando, Fl
- Occupation
- Automation
Hi Everyone,
I'm going 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 100 megohm at 1000 volt.
(This is for existing power cables, not new installations)
I come from an industrial plant where any 480-volt cable above 2 meg was ?good to go?.
I realize that the rest of the world does not operate like a paper mill, but do you guys really 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 triggers paying for cable replacement?
Thanks,
Andy
I'm going 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 100 megohm at 1000 volt.
(This is for existing power cables, not new installations)
I come from an industrial plant where any 480-volt cable above 2 meg was ?good to go?.
I realize that the rest of the world does not operate like a paper mill, but do you guys really 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 triggers paying for cable replacement?
Thanks,
Andy