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Resistance per metre value for 25mm meter tails?

whjohnson

what is the resistance per metre value for 25mm meter tails? I have 2 rolls of old colour meter tails and would like to work out how many meteres there are on each roll without physically unrolling and measuring with a tape! A simple end to end measurement with a ohm meter would be much quicker.

many thanks in advance

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  • 0

    One or more of your wholesalers may have a dedicated test meter, that is made for the job. Ask nicely and one of the wholesalers may let you take their meter out to check the rolls of cable, whilst your van is parked outside their trade counter.

    I have a Megger TDR meter that I bought through EBay for a specific fault finding job on a farm, where there was an underground fault on a buried SWA, probably a fault in a buried connection, but then another electrician sold the farmer a couple of hundred meters of SWA in a single length cheap having used it for a temporary supply at an event on a show ground, so the cable was replaced and I have never used the meter in earnest.

    I tried using the Megger TDR to measure the lengths of cables on drums, but it’s not completely accurate because the cable is tightly wound on the drum, rather than being stretched out in a long length.

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  • 0

    One or more of your wholesalers may have a dedicated test meter, that is made for the job. Ask nicely and one of the wholesalers may let you take their meter out to check the rolls of cable, whilst your van is parked outside their trade counter.

    I have a Megger TDR meter that I bought through EBay for a specific fault finding job on a farm, where there was an underground fault on a buried SWA, probably a fault in a buried connection, but then another electrician sold the farmer a couple of hundred meters of SWA in a single length cheap having used it for a temporary supply at an event on a show ground, so the cable was replaced and I have never used the meter in earnest.

    I tried using the Megger TDR to measure the lengths of cables on drums, but it’s not completely accurate because the cable is tightly wound on the drum, rather than being stretched out in a long length.

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