Discuss Sleeving 3 phase cable to single phase cable in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

Could someone help me understand what is cable sleeving? Can we sleeve a 3 phase cable to single phase cable? Is this as per any regs? BS 7671? Could you send me some pictures of the same if you have..
 
SuperlecDirect - ElectriciansForums.net Electrical Suppliers
This official sponsor may provide discounts for members
  • Thread Starter Thread Starter
  • #3
Sleeving is something you push over wires to identify their colour and/or to insulate the wire.
Is it just done at the terminals?
 
  • Thread Starter Thread Starter
  • #6
Do you have any installation pictures?
 
D

Deleted member 26818

The practice of completely sleeving exposed conductors started when they changed to the new colours.
During the changeover period, we were allowed to choose either old colours or the new colours on new installations, but all of the conductor colours in the new installation had to be of the same colour scheme.

Because it was hit and miss as to which colours the wholesalers would send, we would completely sleeve any exposed conductors which were incorrect for the colour scheme chosen.

That practice still happens now when 3 phase cable is used for single phase, though it is not a requirement of BS7671.

BS7671 only requires the conductors to be identified at the terminations, by either colour or alphanumerically.
 

Pete999

-
Arms
Esteemed
Sleeving is something you push over wires to identify their colour and/or to insulate the wire.
Sleeving cables for identification does not necessarily provide any insulation propertees.
 

Charlie_

-
Arms
Sleeving cables for identification does not necessarily provide any insulation propertees.
I was waiting for a nibble :)
My comment on the insulating properties on sleeving was to open the discussion further.
Would you say that g/y sleeving is not also used to insulate the bare cpc?
If not, would you sleeve at the terminal and leave the rest uncovered? If you do sleeve all of the cpc then why? :)
 

Pete999

-
Arms
Esteemed
I was waiting for a nibble :)
My comment on the insulating properties on sleeving was to open the discussion further.
Would you say that g/y sleeving is not also used to insulate the bare cpc?
If not, would you sleeve at the terminal and leave the rest uncovered? If you do sleeve all of the cpc then why? :)
Deleted
 
Last edited:

Pete999

-
Arms
Esteemed
I was waiting for a nibble :)
My comment on the insulating properties on sleeving was to open the discussion further.
Would you say that g/y sleeving is not also used to insulate the bare cpc?
If not, would you sleeve at the terminal and leave the rest uncovered? If you do sleeve all of the cpc then why? :)
,I believe Charlie, that providing supplementary insulation. the insulation must be equal to or better than the original insulation provided, Identification sleeving does not provide that amount of insulating properties, when applying sleeving to the cpc, the cpc is not a live conductor.
Appendix K OSG Provides information on colours etc of identification sleeves, and is used for many purposes ie at switches where brown and blue core are used for switch wires the blue core shall be marked brown at its termination K3,K4 and K5 K6 and Tables K6(1), 11 and 111 give examples, K7 deals with DC Installations.

















9\
 

davesparks

-
Mentor
Arms
Esteemed
I was waiting for a nibble :)
My comment on the insulating properties on sleeving was to open the discussion further.
Would you say that g/y sleeving is not also used to insulate the bare cpc?
If not, would you sleeve at the terminal and leave the rest uncovered? If you do sleeve all of the cpc then why? :)
Yes it is, see 543.3.201
 

davesparks

-
Mentor
Arms
Esteemed
,I believe Charlie, that providing supplementary insulation. the insulation must be equal to or better than the original insulation provided, Identification sleeving does not provide that amount of insulating properties, when applying sleeving to the cpc, the cpc is not a live conductor.
543.3.201 requires bare protective conductors up to and including 6mm which are incorporated within a sheathed cable to be protected by insulating sleeving in accordance with BS EN 60684 where the sheath is removed at joints am determinations.
 

Pete999

-
Arms
Esteemed
543.3.201 requires bare protective conductors up to and including 6mm which are incorporated within a sheathed cable to be protected by insulating sleeving in accordance with BS EN 60684 where the sheath is removed at joints am determinations.
Sleeving for cable for Ident is Manufactured to BS EN50525 see aslo Reg 514.4.2
 

Pete999

-
Arms
Esteemed
543.3.201 requires bare protective conductors up to and including 6mm which are incorporated within a sheathed cable to be protected by insulating sleeving in accordance with BS EN 60684 where the sheath is removed at joints am determinations.
The sheath hasn't been removed thought mate is was never there in the first place.
 

Pete999

-
Arms
Esteemed
Is this the sort of debate you envisaged Charlie between basically 3 knowledgeable Electricians???????
 

Charlie_

-
Arms
Is this the sort of debate you envisaged Charlie between basically 3 knowledgeable Electricians???????
Haha not sure really..
I just thought that we also used certain types of sleeving to also provide insulation.
I opened up a panel a while back and all the CPCs were bare.. Some were not terminated so I also got a few tingles from them.. The sleeving would also protect the bare wires from coming into contact with busbars?
Good that I managed to get a debate out of such a very basic question from the op though :)
 

Pete999

-
Arms
Esteemed
Haha not sure really..
I just thought that we also used certain types of sleeving to also provide insulation.
I opened up a panel a while back and all the CPCs were bare.. Some were not terminated so I also got a few tingles from them.. The sleeving would also protect the bare wires from coming into contact with busbars?
Good that I managed to get a debate out of such a very basic question from the op though :)
When the cpc sleeving first appeared, it was practice or common practice that IF THE ACCESSORY wasn't prone to regular removal, then sleeving was not required, or that's how it was interoperated by the outfit I worked for, mind you that was before many of the younger generation, had any inkling of joining the electrical industry. So many CUs DBs didn't use cpc sleeving.
 
Last edited:

davesparks

-
Mentor
Arms
Esteemed
The sheath hasn't been removed thought mate is was never there in the first place.
Yes it has, the cpc is inside the cable sheath
 

Reply to Sleeving 3 phase cable to single phase cable in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Top Bottom