When electrics go wrong!!!

[Darkwood]

Just setting up a new sticky thread that unlike the dodgy trade pics thread is focused on showing the result of failures in electrical installations IE - damage caused which may be due to various reasons. Please do not post pics of poor workmanship if there is nothing else to show like the consequences, use the dodgy pics thread for that.

I will start off below with an example. I am hoping the fresh faced members and inexperienced can get a visual incite of what to expect when you come across such things and how to understand what has occured.

 

[littlespark]

Who're you trying to kid, short ---??

“Little”spark is nothing to do with my height, Tiny

 

[GBDamo]

“Little”spark is nothing to do with my height, Tiny

Too easy, I'm out.

 

[ipf]

“Little”spark is nothing to do with my height, Tiny

Bully for you! ?

 

[littlespark]

Bully for you! ?

You started it!

is a short --- a little donkey, little donkey on a dusty road??

?

 

[ipf]

You started it!

is a short --- a little donkey, little donkey on a dusty road??

?

Started what???
Obviously hit the wrong button there, didn't I?
It was just a joke, having a go at folk picking on folk and bullying. If you can't get that.... then I'm sorry.
Enough. Good night.

 

[ipf]

Too easy, I'm out.

Well spotted. ?

 

[ChipFanDave]

Loose connection

 

[Rockingit]

Loose connection

View attachment 85950View attachment 85951

......where's the slot?

 

[SparkySy]

Is that 3 phases through 3 separate holes in the metal baseplate?

 

[ChipFanDave]

Is that 3 phases through 3 separate holes in the metal baseplate?

It's not a metal base.

 

[SparkySy]

Ah that's ok then! Must be my old eyes?

 

[brianmoooore]

Ah that's ok then! Must be my old eyes?

Not just yours, my eyes saw the same.

 

[Dartlec]

Just threw these out during a clear out - only time I ran into melting MCBs on a job, some years ago now.

From memory it was a loose terminal on the busbar so installation not manufacturer's fault, though did put me off the 'cheaper' brands for a good while...

 

[dodger421]

I’ve posted it before but this is what happens when you put 230V through a 110V coil. The coil voltage was applied whenever the machine control was on, so it would easily be sitting at the over voltage for 8 to 10 hours a day. I think it lasted three days before failing.

Physically the contactor looked fine, but you couldn’t manually push the contacts together like you should be able to.

Always always always check the coil voltage as well as the contactor rating, don’t just rummage around the parts cupboard for something that looks similar!

 

[RenatSha]

No idea, but the house was three phase and only 20amps/phase, 20amp MCB on a row of six others all covered by an RCD.

There was a poor connection in this outlet. The clamps in the outlet are loose. The contact has warmed up and the socket has melted!