Entending cables for new cu

[daiplayer]

Is extending cables to move cu exceptable ? if so......what is the best method ? block or crimps ??

 

[JUD]

How far are you moving it???

 

[daiplayer]

only about 5 meters,....the house in question is having its bathroom extended ( by knockingthrough to a cupboard behing bathroom ) in which the consumer unit is now. so must be moved above the front door.

 

[JUD]

You can extend the cables but you need to think about things like:

Are they still going to be in a 'safe zone' once you've moved the CU?

Will the extra length of the cables effect anything (voltage drop, Zs etc)?

Will you need to run cables through insulation to get to the new CU position?

 

[sythai]

Crimp and heat shrink..... but not the tails and main earth bonds :icon14:

 

[daiplayer]

Crimp and tape ok ?

Many thanks

 

[JUD]

Crimp and tape ok ?

Many thanks

Only for cowboys.

 

[sythai]

Go and treat yourself to a heat gun.... can pick them up for about tenner - much more professional job then, that will last unlike tape:smile5:

 

[daiplayer]

I totally agree, :-D

Any recommendations on where to buy heat shrink tubing ? ...i can only seem to find small packs....(consisting mainly of stuff i will never use.....in rolls maybe ?

Any reccomended size ?

Thanks so much :-D

 

[sythai]

Local wholesalers..... or heres a few other places to try: heatshrink - Google Search

Probably best getting a range of sizes as your probably going to be extending different size cables ? Just a thought:icon3:

 

[Ponty Massive]

Have you tried wago's?

 

[malcolmsanford]

only about 5 meters,....the house in question is having its bathroom extended ( by knockingthrough to a cupboard behing bathroom ) in which the consumer unit is now. so must be moved above the front door.

If your extending the cables 5 mteres and just going to use heatshrink and crimps, how are you going to adhere to regulation 526.5

Crimp and heat shrink..... but not the tails and main earth bonds :icon14:

​Why can you not crimp an earth bond??

 

[sythai]

​Why can you not crimp an earth bond??

New one to me then, didnt think you could - correct me if I'm wrong.

 

[flukey]

how long are the meter tails going to be in new position??

 

[daiplayer]

I think im right in saying that all bonding must be continuos....