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Good Old Delroy, he gets all the best Jobs :)

also do those newer meggers do P-P IPF nowadays, I was waiting for the bang. Day one of the 2391 course and our tutor said never ever test phase to phase whilst doing IPF with a single phase tester if you still want eyebrows
Meggers from 15xx onwards will in all cases handle phase to phase on high-current. The 15xx gets very upset if you accidentally select no-trip and connect phase to phase. The manual says it isn't 'supported' but doesn't talk about the undocumented internal fuse! The 17xx onwards just beeps.

It can be the case (not wishing to cast general aspersions) that college tutors have been out of the day-to-day game for a while and not been exposed to more recent equipment. He is right that you could once easily break a tester doing this:
1690362719489.png


By the time Robin became Kewtech (in simple terms), the KT63 doesn't blow up but also doesn't handle phase to phase.

So in general, if you have a Megger, crack on!
 
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Meggers from 15xx onwards will in all cases handle phase to phase on high-current. The 15xx gets very upset if you accidentally select no-trip and connect phase to phase. The manual says it isn't 'supported' but doesn't talk about the undocumented internal fuse! The 17xx onwards just beeps.

It can be the case (not wishing to cast general aspersions) that college tutors have been out of the day-to-day game for a while and not been exposed to more recent equipment. He is right that you could once easily break a tester doing this:
View attachment 109577

By the time Robin became Kewtech (in simple terms), the KT63 doesn't blow up but also doesn't handle phase to phase.

So in general, if you have a Megger, crack on!
It was in 1999 I did my 2391 so he was probably correct at the time. I've never had one of the more posey meters (fluke/megger etc) and just had something cheap and functional, I currently have a KT63 and before that I had a Unitest one which I've still got in the van as a backup, 20 years old and still works perfect.

Beha-0100-Plus-9073.png


Beha-0100-Plus-9073.png
 
I see he's just left the customer to continually reset the tripping RCD 'until they can get someone to sort the dishwasher out'. Solid plan.
To be fair this is possibly the only option Del had left given he didn't want to attempt dragging the dishwasher out himelf
 

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