Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This one, concerning the size of three-phase tails required for a particular installation, is answered by SELECT:
Question: I wonder if you could tell me the following - I need to know the meter tail size for single insulated tails contained within metal trunking, for an 80kVA three-phase and neutral incoming supply?
Answer: From your information, you will have a load current of just under 110A/phase and, therefore, 35mm tails should suffice. You would need to increase to 50mmm tails if your design current is between 110 and 134A/phase.
To see many more Q & A in Voltimum UK's Experts Area, please click on the link: www.voltimum.co.uk/consult.php?universe=consult.index.questions
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