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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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A basic 3-phase question
So in the coffee bar this morning chat pondered on 3-phase and how to
know which of the 3 wires was which phase. I've done some googling and would like the experts to confirm: 1. It doesn't matter which wire is which phase providing the sequence of 1-2-3 2-3-1 or 3-1-2 is maintained when connecting, or any pair swapped if that is what is required. 2. The voltage between any two phases is 440v and it doesn't matter which two and 3. The voltage between any phase and ground/neutral is 240v Is that correct? Are there any conditions when the phase needs to be known? If so how is it detected? -- AnthonyL Why do scientists need to BELIEVE in anything? |
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