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tetsing

  1. eveares

    What's your average single phase measured voltage? Is 251V at point of measurement common?

    So to set the scene, my elderly grandparents live in the rural Kent countryside and have had a APC UPS for a while as they live out in the country and get a fair few power cuts, and not only their internet/router but also there landline phone depends on the mains power being it's a VoIP landline...
    • eveares
    • Thread
    • battery backup high voltage mains voltage nominal voltage tetsing ups voltage voltage drop voltage tester voltages
    • Replies: 86
    • Forum: Electrics UK
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