Worst Joke Ever 2024

[carlyai]

The new 30mA RCBO trips.

But I'll try the "rel" function. 🙂

[Crossy]

Sounds like you definitely have an issue of an earth-leakage nature 😞 

 

Does it trip with the main breaker in the shed switched off? I'm assuming that this is a 2-pole breaker.

 

[carlyai]

45 minutes ago, Crossy said:

Sounds like you definitely have an issue of an earth-leakage nature 😞 

 

Does it trip with the main breaker in the shed switched off? I'm assuming that this is a 2-pole breaker.

 

No.  with all the breakers except the MCB double pole breaker removed from the garage CU and MCB on it trips. With the MCB off it doesn't trip.

[Crossy]

9 minutes ago, carlyai said:

No.  with all the breakers except the MCB double pole breaker removed from the garage CU and MCB on it trips. With the MCB off it doesn't trip.

 

I bet you have a N-E fault on your shed circuits.

 

Disconnect all the neutrals from the neutral bar, hopefully it then won't trip. Then put them back one by one until it does.

 

This kind of fault can be a nightmare to find so don't lose heart.

 

Of course, if you had an insulation-tester ...

[carlyai]

4 minutes ago, Crossy said:

 

I bet you have a N-E fault on your shed circuits.

 

Disconnect all the neutrals from the neutral bar, hopefully it then won't trip. Then put them back one by one until it does.

 

This kind of fault can be a nightmare to find so don't lose heart.

 

Of course, if you had an insulation-tester ...

Great thanks. 

I think I know where it could be coming from, my greenhouse. It's still a bit boggie there with 1 extension lead.

That Megger you suggested is only B1000 something, so will buy that if no luck today.

Probably the only person in Isaan with a megger. 🙂

[carlyai]

From the garage the power goes out to the big ON/OFF switch, then branched to lights behind the garage and to a CU on a pole then to another CU in the greenhouse.

Looks a bit of a mess but those ant tracks maybe a clue.

Tomorrow I think I'll start just disconnecting the wires to the ON/OFF switch first.

Thanks again. 🙂

[sometimewoodworker]

3 hours ago, carlyai said:

Looks a bit of a mess but those ant tracks maybe a clue.

They are termite tubes not ant tracks.

 

8 hours ago, carlyai said:

Probably the only person in Isaan with a megger. 🙂

I can refer you to a Thai electrician in Issan who has a couple along with more tests equipment than I have!!!

[carlyai]

9 hours ago, sometimewoodworker said:

They are termite tubes not ant tracks.

 

I can refer you to a Thai electrician in Issan who has a couple along with more tests equipment than I have!!!

Ants to me are a general classifier for termites as well.

 

Yes I am sure there are many Thai electricians with Meggers. 

An 'off the cuff remark'.:)

[bluejets]

20 hours ago, carlyai said:

That Megger you suggested is only B1000 something, so will buy that if no luck today.

Probably the only person in Isaan with a megger. 🙂

Won't be much of a megger for 1000 baht however, then all you need is someone that knows how to use it. (as per my previous answer)

[CallumWK]

I have been following this thread as I have a similar issue, but will start a thread of my own, rather than hijacking this one.

I want to start with replacing the RCBB for testing purposes.

My installation is ABB, and a 63A RCBB is about 2500 baht, which I think is a bit over the top just to test. What other cheaper and reliable brand I can use?

This is what I have

 

[carlyai]

I found it, unfortunately the neutral goes to the pool pump and chlorinator. 😞

Enough for today, beer time 🙂

More tomorrow.

[carlyai]

3 hours ago, CallumWK said:

I have been following this thread as I have a similar issue, but will start a thread of my own, rather than hijacking this one.

I want to start with replacing the RCBB for testing purposes.

My installation is ABB, and a 63A RCBB is about 2500 baht, which I think is a bit over the top just to test. What other cheaper and reliable brand I can use?

This is what I have

 

You need to start a new thread as you suggested so people will see your problem. My threads go too long and your post will get missed. 🙂

[carlyai]

7 hours ago, carlyai said:

Ants to me are a general classifier for termites as well.

 

Yes I am sure there are many Thai electricians with Meggers. 

An 'off the cuff remark'.:)

White ants, flying ants, all termites me thinks.

The expression 'that person is being white-anted by Bob' should be "that person is being termited by Bob". 

Yes but you are correct.

[carlyai]

Leakage from the lights too.:(

[carlyai]

Moderator please remove carlyai last post as this is incorrect.