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<blockquote data-quote="mackerr" data-source="post: 115587" data-attributes="member: 307">Re: X32 v2 RTAI have to disagree. The &quot;single&quot; phase is from the electrical power grid, and goes to a transformer before it is connected to a building. The 2 hot legs are both on that single phase, but are of opposite polarity and voltage because of the transformer. If the voltage across the 2 hot legs is only 208V you should contact your utility, because it should be about 240V. 208V is the voltage across 2 of the phases of a 3Ø service, which are 120º of phase rotation apart from each other, so sum to 208V rather than the 240V of a single phase service.Single phase service as in domestic buildings is not derived from the 3 phase service that may be in commercial buildings, and using only 2 hot legs of a 3Ø service does not make it single phase.I can&#039;t stand people making obviously wrong statements here either.Mac</blockquote>

[QUOTE="mackerr, post: 115587, member: 307"] Re: X32 v2 RTA I have to disagree. The "single" phase is from the electrical power grid, and goes to a transformer before it is connected to a building. The 2 hot legs are both on that single phase, but are of opposite polarity and voltage because of the transformer. If the voltage across the 2 hot legs is only 208V you should contact your utility, because it should be about 240V. 208V is the voltage across 2 of the phases of a 3Ø service, which are 120º of phase rotation apart from each other, so sum to 208V rather than the 240V of a single phase service. Single phase service as in domestic buildings is not derived from the 3 phase service that may be in commercial buildings, and using only 2 hot legs of a 3Ø service does not make it single phase. I can't stand people making obviously wrong statements here either. Mac [/QUOTE]

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