PAT Tester broken but i can use megger?

[chris day]

Hello guys

my seaward PAT tester has given up the ghost, i have some small PAT jobs coming up and was thinking short term of being able to just use my multi function meter.

R2 test on class 1 equipment using low voltage ohm meter
Insulation resistance testing with leads

Trying to think what other limitations i have by just using my multi function test instrument?

 

[telectrix]

i find it extremely annoying coz i never can get the "I"s , "T"'s, and "E"s in the right order. all the right letters, but.......

 

[Pete999]

I know what you mean westy, but it's got to be better than PAT testing. That phrase perpetuates the myth that it is only portable appliances, and that is only about testing - when we all know that inspection is the big part of it.

Yeah very good point, When I worked for the DOE/PSA we had a testing regime, "Testing Power consuming Apparatus" all those years ago and someone got it right.

 

[DPG]

i find it extremely annoying coz i never can get the "I"s , "T"'s, and "E"s in the right order. all the right letters, but.......

I'll be honest tel, I had a quick peek at the COP to make sure I got it right!

 

[ruston]

I find the abbreviation ISITEE mildly irritating

I agree. It sounds like a burst couch...

 

[static zap]

..appearance of ISITEE is particularly annoying.

Apples new iSettee , where to sit while applying labels , to a conveyor of untested / un-inspected ,63p a shot appliances . _NOT a Money spinner_
..But get TV rights for game show..

 

[Lucien Nunes]

How will you be measuring differential leakage and touch leakage?

 

[multimick]

don't think my megger pat 120 measures that anyway ?

 

[Lucien Nunes]

But the PAT120 does offer a substitute leakage test, which can't be replicated using an MFT. I wouldn't claim to have completed a PAT without at least some type of leakage test. Maybe I'm old-fashioned.

 

[R-fur]

I thought PAT testers were introduced so that semi-skilled guys could test appliances rather than using an electrician. The testers have a lot of nice extras and can make recording the results easier. But any decent electrician with a insulation and continuity tester plus a note book can test appliances.

 

[DPG]

I thought PAT testers were introduced so that semi-skilled guys could test appliances rather than using an electrician. The testers have a lot of nice extras and can make recording the results easier. But any decent electrician with a insulation and continuity tester plus a note book can test appliances.

Except for leakage tests as mentioned by Lucien.

 

[oracle]

Well, the only tests required on the certificate are continuity of the earth bond / CPC, Continuity of line and neutral (linked) and Insulation Resistance between all conductors. If you must, leakage current can be measured across the appliance insulation using the insulation tester. Touch current measurements are not at all clear in the code of practice and are unusual tests in normal circumstances anyway.

 

[Risteard]

My biggest issue would be with the 200mA continuity test. 25A will prove the cpc far more effectively (or nuke it if it's hanging on by a strand or two).

 

[Simon47]

I'd been thinking about making an adapter a bit like that - but with an extra socket for an earth continuity lead and a switch. Idea being that the switch would take care of the different connections needed - so the MFT could stay connected, the extra lead connected to exposed conductive parts for Class I continuity & Class II IR test, and only the switch would need to be moved (plus the mode switch on the MFT).
Otherwise, yes an MFT can be used, it's just a bit of a faff having to reconfigure the leads all the time for the different tests.

My biggest issue would be with the 200mA continuity test. 25A will prove the cpc far more effectively (or nuke it if it's hanging on by a strand or two).

How many battery powered PA testers do that ? At my last job (in IT), the boss thought it might be a good idea to get a tester and offer it as a service to customers. My response was that I wasn't going to be the only person "qualified" to do it, and no-one else actually bothered. I borrowed it and used it for my own requirements more than it got used at work (I'd test stuff that came across my desk) Anyway, the spec for it wasn't for much current - only something like 200mA IIRC.

 

[Risteard]

How many battery powered PA testers do that ?

I prefer the mains-powered PAT Testers. Mine can be connected to either a 230V or a 110V supply.

 

[oracle]

I'd been thinking about making an adapter a bit like that - but with an extra socket for an earth continuity lead and a switch. Idea being that the switch would take care of the different connections needed - so the MFT could stay connected, the extra lead connected to exposed conductive parts for Class I continuity & Class II IR test, and only the switch would need to be moved (plus the mode switch on the MFT).
Otherwise, yes an MFT can be used, it's just a bit of a faff having to reconfigure the leads all the time for the different tests.

How many battery powered PA testers do that ? At my last job (in IT), the boss thought it might be a good idea to get a tester and offer it as a service to customers. My response was that I wasn't going to be the only person "qualified" to do it, and no-one else actually bothered. I borrowed it and used it for my own requirements more than it got used at work (I'd test stuff that came across my desk) Anyway, the spec for it wasn't for much current - only something like 200mA IIRC.

If 200 mA is good enough for installation continuity testing, why not not for appliances?