Jump to content

Recommended Posts

Posted

Sounds like you definitely have an issue of an earth-leakage nature ๐Ÿ˜ž 

 

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

 

"I don't want to know why you can't. I want to know how you can!"

Posted
  On 10/12/2024 at 4:25 AM, Crossy said:

Sounds like you definitely have an issue of an earth-leakage nature ๐Ÿ˜ž 

 

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

 

Expand  

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.

Posted
  On 10/12/2024 at 5:14 AM, 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.

Expand  

 

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 ...

"I don't want to know why you can't. I want to know how you can!"

Posted
  On 10/12/2024 at 5:22 AM, 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 ...

Expand  

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. ๐Ÿ™‚

  • Like 1
Posted

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. ๐Ÿ™‚20241012_164640.thumb.jpg.97b705aa9562ae7ab41f33f1366a15f3.jpg20241012_164550.thumb.jpg.cd15330b3c30bb45af7e56bf952a1c5e.jpg20241012_164550.thumb.jpg.cd15330b3c30bb45af7e56bf952a1c5e.jpg20241012_164516.thumb.jpg.6a38311813708d25293e728b832ccfa1.jpg20241012_164512.thumb.jpg.209804bc0784f38399402eb528cfb4b3.jpg20241012_164320.thumb.jpg.bd1558d969393f6e0404ff24745d32a5.jpg20241012_164152.thumb.jpg.9d8ab62ee24fb794dbef67c9814f6edb.jpg

Posted
  On 10/12/2024 at 10:32 AM, carlyai said:

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

Expand  

They are termite tubes not ant tracks.

 

  On 10/12/2024 at 5:32 AM, carlyai said:

Probably the only person in Isaan with a megger. ๐Ÿ™‚

Expand  

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

Posted
  On 10/12/2024 at 2:27 PM, 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!!!

Expand  

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'.:)

Posted
  On 10/12/2024 at 5:32 AM, 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. ๐Ÿ™‚

Expand  

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)

Posted

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

image.jpeg.206a01a6ae87ba85f2fa083b3c96655e.jpeg

 

Posted

I found it, unfortunately the neutral goes to the pool pump and chlorinator. ๐Ÿ˜ž

Enough for today, beer time ๐Ÿ™‚

More tomorrow.

Posted
  On 10/13/2024 at 2:51 AM, 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

image.jpeg.206a01a6ae87ba85f2fa083b3c96655e.jpeg

 

Expand  

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. ๐Ÿ™‚

  • Like 1
Posted
  On 10/12/2024 at 11:34 PM, 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'.:)

Expand  

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.

Posted
  On 10/13/2024 at 6:43 AM, carlyai said:

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.

Expand  

Though both ants and termites are social insects that live in colonies, both have flying forms, both can be found near or inside homes, if you have no need to differentiate that is enough.

 

But termites  are known for eating wood and other cellulose-based materials, while ants do not, ants will infest electrical outlets and switches, termites will not. So it is sometimes quite useful to distinguish between them. Ant powder in electrical boxes  is remarkably effective and provides protection fo years.

  Quote

 

CAN TERMITE TREATMENTS KILL ANTS?

Yes. The same kind of pesticide used to kill termites can sometimes kill other insects including ants. However, the treatment is not effective for the purpose of ant control since ants and termites have very different living arrangements, attack properties differently, and have different food sources.

 

Expand  

 

  Quote

Termites and ants belong to different orders of insects. Termites are in the order Isoptera, while ants are in the order Hymenoptera. This means that while they are both insects, they are not closely related

Expand  

.

 

as to the โ€œthat person is being white-anted by Bobโ€ I suspect that you maybe from the southern island continent as I have never come across that phrase.

 

  • Like 1
  • Love It 1
Posted

Removed the power connections from the plug to the pool pump, chlorinator and pool lights. Fault still there, so it's in the power plug feed.

I've lots of plugs everywhere, so will start from the plug nearest the CU disconnect the wiring and see when the fault disappears.

 

20241015_054745.thumb.jpg.d28ceba4bfd7fa23f21cae25d7c4fd14.jpg

20241015_054713.jpg

20241015_054831.jpg

20241015_054859.jpg

20241015_054946.jpg

Posted
  On 10/14/2024 at 11:07 PM, carlyai said:

... so will start from the plug nearest the CU disconnect the wiring and see when the fault disappears.

Expand  

 

You should use the "half-split method".

 

Start your disconnection in the centre.

Then you know which half of the run has the fault.

Then go to the middle of that section and test.

Repeat until you find the fault.

  • Thanks 2

"I don't want to know why you can't. I want to know how you can!"

Posted
  On 10/14/2024 at 11:41 PM, Crossy said:

 

You should use the "half-split method".

 

Start your disconnection in the centre.

Then you know which half of the run has the fault.

Then go to the middle of that section and test.

Repeat until you find the fault.

Expand  

If Riemann built it, he may never get there.

 

  • Haha 1
Posted
  On 10/14/2024 at 11:41 PM, Crossy said:

 

You should use the "half-split method".

 

Start your disconnection in the centre.

Then you know which half of the run has the fault.

Then go to the middle of that section and test.

Repeat until you find the fault.

Expand  

As god would have it, I've filed the circuit....somewhere and not sure where the middle is. 

I have 3 rooms in the garage so should have installed 3 breakers in the CU which would have made tracing a fault easier.

This was the first time I've power wired up the whole building (as you can probably tell). ๐Ÿ™‚

I see some egg shells in one of wifeys outside water fountain, so may do that first.

Good suggestion thanks. ๐Ÿ˜‰

 

 

Posted
  On 10/15/2024 at 9:44 AM, Crossy said:

 

Time for a beer!!!

 

Expand  

I've got the leakage current down to 0, at the moment, need to buy a couple of plugs and a socket tomorrow.

Wish my beautiful wife would tell me when sockets are broken. ๐Ÿ™‚

 

Posted
  On 10/15/2024 at 10:12 AM, carlyai said:

Wish my beautiful wife would tell me when sockets are broken. ๐Ÿ™‚

Expand  

 

Yup.

 

The "help" are very good at "finding something faulty" (ok, breaking it) and just putting it away for me to find when I need it.

 

Please, just tell me it's busted and I'll sort it!!!

  • Thumbs Up 1

"I don't want to know why you can't. I want to know how you can!"

Posted
  On 10/15/2024 at 10:12 AM, carlyai said:

I've got the leakage current down to 0, at the moment, need to buy a couple of plugs and a socket tomorrow.

Wish my beautiful wife would tell me when sockets are broken. ๐Ÿ™‚

 

Expand  

Seems the white thing I saw in a power outlet was not eggs but a busted off prong from an extension cable plug.

  • Haha 1
Posted

The "ant powder" is very good at discouraging the creepy-crawlies and it lasts pretty much forever.

 

I doubt you'll stop the really tiny ants (they seem to adore electric fields) from getting in even with foam in the conduit and outlet stoppers.

 

"I don't want to know why you can't. I want to know how you can!"

Posted
  On 10/18/2024 at 9:12 AM, Crossy said:

The "ant powder" is very good at discouraging the creepy-crawlies and it lasts pretty much forever.

 

I doubt you'll stop the really tiny ants (they seem to adore electric fields) from getting in even with foam in the conduit and outlet stoppers.

 

Expand  

Yes difficult to stop, but those while plugs are hopeless (I think) as well, have a little neon or led in them with a thin wire between L & N and the critters like to build there.

Posted
  On 10/23/2024 at 12:36 AM, degrub said:

Nice 267 amp fuses you have there ๐Ÿ˜‰

Expand  

 

At least there won't be any ants in there ๐Ÿ™‚

 

  • Haha 1

"I don't want to know why you can't. I want to know how you can!"

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.




ร—
ร—
  • Create New...
โ†‘