mrloy99
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- Reaction score
- 15
Has anyone any knowledge on earth leakage clamp meters.
As far as I can make out they are identical to a normal clamp meter only with greater resolution measuring down to milliamps rather than amps.What I dont really get is why we dont have them with 2 clamps..one to measure the live and one to measure the neutral..with the difference being the leakage going eslewhere ie to earth.
A circuit I was checking the other day..the measuring technique is supposedly to clamp the live and the neutral together showed 1.3 amps.......When I clamp the live just,its 0.64. amps and roughly the same with the neutral.0.67 amps......Conflicting results in my view....surely the leakage is the difference between live and neutral currents 0.03 ( 30ma) the circuit itself is supplying kit which the client hasn't given me permisson to isolate(so I cant do IR test)
As far as I can make out they are identical to a normal clamp meter only with greater resolution measuring down to milliamps rather than amps.What I dont really get is why we dont have them with 2 clamps..one to measure the live and one to measure the neutral..with the difference being the leakage going eslewhere ie to earth.
A circuit I was checking the other day..the measuring technique is supposedly to clamp the live and the neutral together showed 1.3 amps.......When I clamp the live just,its 0.64. amps and roughly the same with the neutral.0.67 amps......Conflicting results in my view....surely the leakage is the difference between live and neutral currents 0.03 ( 30ma) the circuit itself is supplying kit which the client hasn't given me permisson to isolate(so I cant do IR test)