Changeing CCU and removing main head fuse

[justjust1]

Hi all,

I am just finishing my Level 3 City and Guilds level 3.

I am going to replace an old re-wire-able fuse type CCU with a dual RCD CCU. When replacing a CCU in the past i have just removed the main head fuse to disconnect the supply going to the CCU.

But someone at my collage has mentioned that you are supposed to contact the supplier and they will send someone out to do it? This seems a bit pointless as they will then have to re-connect after i have finished?

Can someone clarify?

Also if i can just remove the main head fuse, where would i get the wire which goes in to stop people removing the fuse? And what is it called?

Thanks

Justjust1

 

[Des 56]

De-Energisation - Frequently Asked Questions Document

Here is a little gem that I read on there
Ideally the electrician will have prepared the new
equipment so that the Meter Operator can complete the work in one visit,

There we have it then,get the consumer unit done pronto and the DNO procedures will be no problem

 

[aptsys]

I have to say though as a newly trained electrician, this seems all very time consuming especially if it will end up costing me money! I am perfectly capable of removing a fuse!

You say that, but do you have full PPE for arc flash protection and have you had the appropriate training?

A friend who works for the REC has had a cut-out go bang in his face while taking out a fuse when it was filled with cobwebs, and also had a fuseholder separate as he was pulling it out leaving the live fuse exposed.

 

[justjust1]

You say that, but do you have full PPE for arc flash protection and have you had the appropriate training?

A friend who works for the REC has had a cut-out go bang in his face while taking out a fuse when it was filled with cobwebs, and also had a fuseholder separate as he was pulling it out leaving the live fuse exposed.

Yes i have had the correct training and i understand the risk when removing a non isolated fuse. No i dont have arc protection, thats why i am asking the questions on this forum, to get a general consensus of opinion about what the best course of action is, be it leave it to the suppliers, or do it myself!

 

[Electricalserv]

Arc protection whats that then a welding mask?

H&S these days

 

[justjust1]

Arc protection whats that then a welding mask?

H&S these days

Hahaha just been looking into it! Apparently its a full on protective rubber suit!!!

Whatever floats your boat!! LOL!

Suppose Jointers have to ware it, think i would only go as far as a pair of gloves tho for <250V!

 

[Electricalserv]

Imagine turning up in one of these to pull a main fuse>>>>

Google Image Result for http://www.cablejoints.co.uk/images/Arc-Flash-Protection-Kits1268047090.jpg

 

[aptsys]

If you've seen the injuries sustained by someone who has suffered first hand, I do not think you would be laughing. It is most certainly not made from rubber, and the voltage is insignificant, btw.

 

[aptsys]

Imagine turning up in one of these to pull a main fuse>>>>

Google Image Result for http://www.cablejoints.co.uk/images/Arc-Flash-Protection-Kits1268047090.jpg

That's exactly what the last guy who pulled a fuse for me went back to his van to get, but they ended up cutting the supply in the driveway and replacing the head.

 

[Big n Daft]

ooooer missus

 

[justjust1]

Imagine turning up in one of these to pull a main fuse>>>>

Google Image Result for http://www.cablejoints.co.uk/images/Arc-Flash-Protection-Kits1268047090.jpg

Mmmm i wonder if the energy board issue these to their staff for removing the main fuse? Or maybe every sparky has a set under their bed!

 

[justjust1]

If you've seen the injuries sustained by someone who has suffered first hand, I do not think you would be laughing. It is most certainly not made from rubber, and the voltage is insignificant, btw.

Lighten up! I can imagine this is needed for certain jobs but not domestic surly!!!

 

[Electricalserv]

Health & Safety has gone overboard in this country but without it we'd be fecked! Either way sometimes you can go too far!

 

[aptsys]

It depends on the circumstances. Last time it WAS a domestic supply. There's quite a bit of a bang before the 600A fuses at the local LV distribution pillar blow... Certainly enough for someone to become blinded and suffer 2nd degree burns to the face, chest and arm.

Certainly shows how naive some of you are...

 

[justjust1]

It depends on the circumstances. Last time it WAS a domestic supply. There's quite a bit of a bang before the 600A fuses at the local LV distribution pillar blow... Certainly enough for someone to become blinded and suffer 2nd degree burns to the face, chest and arm.

Certainly shows how naive some of you are...

OK OK OK, as i said i have only just finished collage, so yes i am naive.

 

[aptsys]

It wasn't a personal dig