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The Electrical Contractor Network is committed to providing Information and Services for, and about the Electrical Industry.

Major goals of this website include promoting safety, and emphasizing the importance and value of using a Licensed Electrician.

		Recent Activity at ECN Forum: Come, Join Us! Re: IEEE article Posted by Trumpy: John (Hotline), Being an "out of towner" I can't really say a lot about the reasons behind the use of AFCI's, in fact I'd never heard of them until I signed up here, this could be because the US uses a low voltage/high current supply system in residential places, the line current is double (...) Re: Auto cad and electrical design Posted by Scott35: Maybe I can help via E-mail or P.M. -- Scott Re: Pashchen's Law Posted by Scott35: I have witnessed a Series Arc bridge a gap, which grew up to an Inch or more - in a very hot environment, with minimally conductive surrounding Air, and a potential of 230 VAC (measured after the event). The bottom Element of an Electric Oven failed while in use, resulting in a Series Arc (...) Re: 1000 amp gfci breaker Posted by TNT_Tim: I'll start with this is a GE High Pressure Contact Ground Fault Protected Switch, that's how GE refers to it. As was explained to me from GE the trip setting is a variable number , really shouldnt go over 1000 milliamps but can be as low as 100 milliamps. So that makes it really clear this is (...) Re: British Columbia Safety Authority Release Posted by renosteinke: These incidents bring up a pair of interesting points. Code semantics aside ... how many fires will this guy need to have before he figures out he has a dust problem? Sawdust IS entering the equipment, and IS being ignited .... maybe he should address the dust issue? It underscores the (...) Re: VGA ground loop isolation? Posted by LarryC: NJwirenut, Any updates? didja fix it? LarryC Re: Wire Pricing Increase - Canada Posted by distributor x: Apparently there is a strike at Alcan which is affecting the supply of aluminum Re: Re: Switch Posted by gfretwell: The operative word in 110.2 is "approved". 90.7 gives you the assurance that if a NRTL lists an item you don't have to inspect it further but there is nothing that says the AHJ can't approve an unlisted device if it is inspected and deemed safe. That is really why we have 90.4 Re: 250.32(B)(1) 2005 NEC Posted by gfretwell: You never switch the EGC and it can be tied to earth as many times as you want. The only issue is where it gets bonded to the neutral. I am still not sure how you could coordinate two transfer switches in a compliant way. You really need to bring the generator feed back to the service entrance.

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