Pulling a fuse with load on it

[ed-ectrician]

One of the first things i learnt was, if you pull a dno fuse, remove the load first.

Of course i never pull fuses but that's another story...

Has anyone ever pulled one accidentally or otherwise with a load on it? What happened?!?! Bloke i work with said it's fine but he's ex military so likes to be known as a bit of a 'crazy bloke' if u know what i mean!

Not saying all ex army are like this but you do get a few like this dont you?!

Ed

 

[PEG]

I'll tell you what does hurt if you pull it off whilst it's fully loaded....A donkey...still,it was a petting zoo...

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I'll tell you what does hurt if you pull it off whilst it's fully loaded....A donkey...still,it was a petting zoo

 

[Engineer54]

A good spanking

Followed by a thorough Rogering!! ...Well that's what i tell the misses anyway!!

 

[Gage]

Never had a problem with this however I think the most I pulled is only around 40A but I will say that putting one back in under load is fun...not.

 

[SKY]

In the factory I work in I have to pull many circuit fuses under load up to approx 40a,
This is mainly due to the fact that none of the boards are labelled correctly so when trying to isolate a circuit its like a lucky dip!
There are approx 20 3 phase old 60s-70s MEM boards on-site and I'm slowly working my way through the labelling as well as labelling up the outlet faceplates with say "DB4S R4".
Which for the novice is - Distribution Board 4 - South Wing - Red Phase Fuse 4 (from left to right).

When pulling the fuse I always pull quick and replace quick normally with a crackle, especially the large rows of 30 flouresent tubes.
I have a knack of quickly popping them back in now, but I will always have the odd one where the pins have become slightly misshaped and does not go in a quickly as I like.

With DNO fuses in domestic settings I always ensure the load is off, if not I will not pull it.
Never been too bothered by removing seals, its the only means of isolation I have in a house so I'm obviously not going to work live on tails.
I have met many DNO chaps onsite and 99% of them know the score and if they see a new board or recent work they are not too bothered, the problem is with the newer generation of DNO engineer.
On many occasions I call the DNO after doing a CU change and ask them to come and re-seal, never had an issue with them, they are normally out to the customers within 5 days to reseal.
They normally ask what work has been done and thats it.

 

[electric will]

This is what annoys me. You can class me as a Electrical Trainee, althogh I've got other codifications but come on, what ya thinks going to happen if you whip any sort of fuse out while its supplying a load? It's going to arc, flash, bang?

 

[imago]

There's a lot of excellent information in this thread, so there's only one thing I can think of to add to it.

It's highly likely that when you nervously grip the fuse and pull, due to and excess build up of tension within the person pulling the flash and associated pop/bang will cause a little bit of poo to come out. So PPE should include some absorbant padding placed in the back of your pants to prevent fudge damage.

 

[High Tower]

There's a lot of excellent information in this thread, so there's only one thing I can think of to add to it.

It's highly likely that when you nervously grip the fuse and pull, due to and excess build up of tension within the person pulling the flash and associated pop/bang will cause a little bit of poo to come out. So PPE should include some absorbant padding placed in the back of your pants to prevent fudge damage.

Good point I think!!, unless your tony and then you pull em out with your teeth while rolling a smoke lol

 

[Knobhead]

Thanks pal!

That's how I broke my false teeth.

 

[High Tower]

Anytime

 

[RogertheBodger]

A bit more extreme than pulling a fuse under load, but the principle is the same.

500KV Substation arc.. Nice - YouTube