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New tool
by SMOKEYBOB - 02/15/21 04:59 PM
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1 registered members (Scott35),
27
guests, and 25
spiders. |
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Key:
Admin,
Global Mod,
Mod
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 Ground detector needed
#180317
08/21/08 05:05 PM
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Joined: Jan 2001
Posts: 1,044
OP
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In order to comply with 250.21(B), I need a ground detector. All I've found so far is one made by Cutler Hammer (way too expensive at about $2000) and a detector that uses lights (haven't priced it yet). I'd really like to have something with a set of relay contacts that I could hook to a bell or horn in order to get some attention when the first ground fault occurs.
System voltage will be 480 volts.
Anyone know of a product that will help me?
Few things are harder to put up with than the annoyance of a good example.
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Re: Ground detector needed
[Re: Tom]
#180336
08/22/08 08:27 AM
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Joined: Jul 2001
Posts: 599
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Re: Ground detector needed
[Re: JBD]
#180342
08/22/08 10:54 AM
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Joined: Jun 2007
Posts: 301
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Would not a megger be a suitable substitution?
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Re: Ground detector needed
[Re: JValdes]
#180345
08/22/08 03:00 PM
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Joined: Apr 2007
Posts: 36
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Would not a megger be a suitable substitution? He wants a permanent ground detector that is built in. They are normally used and required on ungrounded systems to tell if a leg is accidentally shorted to ground.
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Re: Ground detector needed
[Re: junkcollector]
#180355
08/23/08 07:29 AM
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Joined: Jan 2001
Posts: 1,044
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JBD,
Thanks for the lead on the Erickson equipment, I'll have my supplier price one next week.
Tom
Few things are harder to put up with than the annoyance of a good example.
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