GFCI breakers are very common, the slightly less common version are arc fault breakers which are starting to show up more as well.
GFCI breakers are often required on large services, most large (new) 480v services I have seen (1000A and larger) a have Ground fault breakers, in fact I have seen some bad outages on entire datacenters where the main breakers had a lower ground-fault current setting (for tripping) than a branch circuit that had a phase-to-ground fault resulting in the main breakers tripping instead of the branch circuit. I don't know if the ground-fault breakers are required just in Washington (I am in seattle) or if it is a NEC requirement. John -----Original Message----- From: Chris Adams [mailto:cmad...@hiwaay.net] Sent: Thursday, December 02, 2010 7:38 PM To: NANOG list Subject: Re: Want to move to all 208V for server racks Once upon a time, Ricky Beam <jfb...@gmail.com> said: > Just because someone is selling them doesn't mean they meet building > codes. (esp. for residential use.) None of the dozen or so licensed > electricians I've ever talked to will use them. I saw GFCI breakers installed in a new house this year, and it passed inspection. I think you experienced a recall of a specific device and are confusing that with a general removal. When Toyota recalled a model of car, that didn't mean all cars were banned. -- Chris Adams <cmad...@hiwaay.net> Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.
