Tweakers' Asylum

Also, check resistance to shell.

76.191.156.247

In Reply to: RE: Hammond Choke Test posted by mg16 on May 12, 2008 at 12:07:21

There should be **NO** conductance from either wire to the metal shell. The resistance should read off-scale, with no indication of any current.

If the resistance meter has low sensitivity (ie, does not read into the tens of megohms range), test carefully with the AC line voltage: connect the choke shell to AC neutral, then connect one of the leads to a 120 volt light bulb and the other light bulb lead to the AC hot. The smaller the light bulb, the better.

An easier test, if you have a ground fault interrupter, is to connect the shell to AC ground and both leads together to AC hot. The interrupter will trip if there is even a little leakage current.

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