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PrimeTest 250 plus

PostPosted: Tue Jun 20, 2017 10:00 pm
by Bigaki
Good evening,

Any advice would be great.

When I test a 110v 16a lead it fails the polarity test. I know that it is wired correctly as I have checked both male/female ends.

Has anyone got an answer as to how I can over this.

Re: PrimeTest 250 plus

PostPosted: Wed Jun 21, 2017 8:29 am
by Overgiver
Have you checked to make sure that your test leads that you use to plug into the tester, to allow you to test the extension lead are wired correctly, Do a test on the test leads first to see if they pass.

Re: PrimeTest 250 plus

PostPosted: Wed Jun 21, 2017 5:57 pm
by Bigaki
Problem sorted. When I opened the plug female end of the 110v test lead I noticed that the wiring was different to what it should be. It was wired earth to earth, neutral to neutral and then it was linked from neutral to live. I had a spare test lead and that was wired the same, so I wired that one correctly and done a test which worked perfectly and solved the issue. My only concern is why would both test leads be wired with a link form neutral to live!!!

Re: PrimeTest 250 plus

PostPosted: Wed Jun 21, 2017 6:16 pm
by Alan Freeman
Pound to a pinch that was done to stop inadvertently powering up the 110v equipment with 240v when the tester is wrongly set to a 240v class 1 or 2 test - not the 110v tests which do not power up the equipment under test.

The only tests done with 110v class 1 is earth continuity and insulation. 240v tests add leakage tests to these.

You didn't say what the polarity test result was - I guess "Short".

Re: PrimeTest 250 plus

PostPosted: Wed Jun 21, 2017 7:10 pm
by Bigaki
Your right Alan it did give me a 'short' message. But before I changed the wiring it was always failing the polarity test. Now it works fine. I don't have 240v mains running when I do the 110v 16a lead test, it's of the battery. As is when I test class 2 110v items.