Comments for Sparky Resource http://www.sparkyresource.com What you want to know about Arc Flash, NFPA 70E, and more Wed, 28 Oct 2009 01:29:46 +0000 http://wordpress.org/?v=2.9.1 hourly 1 Comment on High Fault Contribution may not be a bad thing by Jeff http://www.sparkyresource.com/2009/high-fault-contribution-may-not-be-a-bad-thing/comment-page-1/#comment-733 Jeff Wed, 28 Oct 2009 01:29:46 +0000 http://www.sparkyresource.com/?p=20#comment-733 I suppose that's right. Typically however when you are doing coordination for a 3 phase fault this is assumed. Most internal faults within equipment will approach a bolted fault when there is enough arcing between the busses (one "s" or two, I never know) from ionized air and vaporized copper if the fault is large enough. I suppose that’s right. Typically however when you are doing coordination for a 3 phase fault this is assumed.

Most internal faults within equipment will approach a bolted fault when there is enough arcing between the busses (one “s” or two, I never know) from ionized air and vaporized copper if the fault is large enough.

]]> Comment on High Fault Contribution may not be a bad thing by The Velvet Cyclone http://www.sparkyresource.com/2009/high-fault-contribution-may-not-be-a-bad-thing/comment-page-1/#comment-732 The Velvet Cyclone Wed, 28 Oct 2009 00:32:35 +0000 http://www.sparkyresource.com/?p=20#comment-732 Better coordination, of course, assumes a bolted fault. Better coordination, of course, assumes a bolted fault.

]]> Comment on Arc Flash Hazard by Sparky Resources » Blog Archive » Employee Injured at Texas Christian University http://www.sparkyresource.com/2008/arc-flash-hazard/comment-page-1/#comment-2 Sparky Resources » Blog Archive » Employee Injured at Texas Christian University Thu, 10 Apr 2008 19:06:02 +0000 http://www.sparkyresource.com/2008/04/10/arc-flash-hazard/#comment-2 [...] Sparky Resources What you want to know about Arc Flash, NFPA 70E, and more « Arc Flash Hazard [...] [...] Sparky Resources What you want to know about Arc Flash, NFPA 70E, and more « Arc Flash Hazard [...]

]]>