fire damaged property

[bobby101]

hi all doing a test for a property that has been fire damaged but when i tested all the white goods all failed 4 out 5 appliances failed on earth continutiy a little suspect yes i know but i did double check meter and leads all appeared ok the final appliance failed on earth leakage is it possible that my meter which is only a year old (metrel pat unit model number, cant remember) anyway the tester is pretty much kept in the van what is your views ta

 

[topquark]

Try it on your own goods at home as a benchmark.

 

[MarkieSparkie]

Hi Bobby, Have you been testing with the correct autotest code set, sounds like the earth bond limit might be set to low for the appliance flexible cord length. On a Metrel autotest mode there is usually 3 choices; short =0.1 Ohms, midd = 0.3 Ohms and long = 0.5 Ohms. On the simple test modes it's 0.2 Ohms.