Sparky advice please


I moved into a new build around 2 1/2 years ago and the garage is detached (subtle brag etc).

The leccy feed is tripping out when I plug in a 110v transformer into the socket in the garage but doesn’t when I plug the same box into the downstairs circuit.

A bit frustrating as I use 110v tools outside more than I do inside and at the moment, I need to run an extension cable if I’m doing any work.

Trip switch for the garage is 16A breaker which is the same as the downstairs sockets circuit.

What’s going wrong?
 
I moved into a new build around 2 1/2 years ago and the garage is detached (subtle brag etc).

The leccy feed is tripping out when I plug in a 110v transformer into the socket in the garage but doesn’t when I plug the same box into the downstairs circuit.

A bit frustrating as I use 110v tools outside more than I do inside and at the moment, I need to run an extension cable if I’m doing any work.

Trip switch for the garage is 16A breaker which is the same as the downstairs sockets circuit.

What’s going wrong?
Your downstairs sockets are on a 16A breaker?, usually its a 32A for a ring main, your sockets could be a radial then maybe thats why its on a 16A are the breakers RCBOs or MCBs? RCBOs will have a little button on them.

Sounds like a high current draw then it is first plugged in possibly breaker may need changed to handle the inrush current.
 
Your downstairs sockets are on a 16A breaker?, usually its a 32A for a ring main, your sockets could be a radial then maybe thats why its on a 16A are the breakers RCBOs or MCBs? RCBOs will have a little button on them.

Sounds like a high current draw then it is first plugged in possibly breaker may need changed to handle the inrush current.
Garage will be a 25 amp. Does it with my welder.
 
Your downstairs sockets are on a 16A breaker?, usually its a 32A for a ring main, your sockets could be a radial then maybe thats why its on a 16A are the breakers RCBOs or MCBs? RCBOs will have a little button on them.

Sounds like a high current draw then it is first plugged in possibly breaker may need changed to handle the inrush current.
I'm ashamed to say I thought this too.:lol:
 
Your downstairs sockets are on a 16A breaker?, usually its a 32A for a ring main, your sockets could be a radial then maybe thats why its on a 16A are the breakers RCBOs or MCBs? RCBOs will have a little button on them.

Sounds like a high current draw then it is first plugged in possibly breaker may need changed to handle the inrush current.

Just checked and there’s a code which implies 32A (MTN 132).

Logon or register to see this image


Is it a case that I can just swap the breaker for a 32A??
Don’t plug a 110 transformer in.

Chop saw.
SDS drill.
Table saw.

All 110v
 
Just checked and there’s a code which implies 32A (MTN 132).

Logon or register to see this image


Is it a case that I can just swap the breaker for a 32A??


Chop saw.
SDS drill.
Table saw.

All 110v
You can buy a 240v converter for them but it's a faff.
To be honest I'm not sure. I run all of those (240v versions) through an extension to the kitchen and never have any problems. Could just be a faulty breaker?
Obviously a dodgy transformer then. You must have done some canny thieving from work with all that 110 kit.
Was garna say this too.:lol:
 
Ya garage is only on 16 amp. That’s why it’s tripping.
Is it a 3kw transformer or a 6kw?
16a can only carry 3.6 iirc which may trip on startup.
 
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Obviously a dodgy transformer then. You must have done some canny thieving from work with all that 110 kit.

Metal bashers don’t need joinery kit man. I’ve bought it all over a number of years.
Ya garage is only on 16 amp. That’s why it’s tripping.
Is it a 3kw transformer or a 6kw?
16a can only carry 3.6 iirc which may trip on startup.

Thanks. Is it a case of just swapping the breaker or does the cable need to be upgraded too?
 
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110v? Plug it into you shaving by socket in the bathroom and that way you can lay a cable while you saw some wood.
 
Metal bashers don’t need joinery kit man. I’ve bought it all over a number of years.


Thanks. Is it a case of just swapping the breaker or does the cable need to be upgraded too?
If it’s 2.5 it will be okay.
Just change the breaker. Is the garage a separate garage.
 
Garage will be a 25 amp. Does it with my welder.
Aye he said 16A
Just checked and there’s a code which implies 32A (MTN 132).

Logon or register to see this image


Is it a case that I can just swap the breaker for a 32A??


Chop saw.
SDS drill.
Table saw.

All 110v
No, it will probably be a 2.5 radial to the garage, if its a 4.0mm yes, try 20A or a type c 16A
Ya garage is only on 16 amp. That’s why it’s tripping.
Is it a 3kw transformer or a 6kw?
16a can only carry 3.6 iirc which may trip on startup.
If its a 3kw a type c 16A mcb would probably handle the inrush current.
 
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