cable calc query

[assegayer]

This may sound like a daft question but in the on site guide appendix f table f6 it has many different reference methods of installation of twin and earth. it has :

above plasterboard ceiling covered by thermal less then 100mm

above plasterboard covered by thermal more then 100mm

stud wall with thermal insulation, cable touching inner wall surface

stud wall with thermal insulation, cable not touching inner wall surface

clipped direct

enclosed in conduit in an insulated wall


With all these options what im trying to understand is what if the cable is plastered in a wall (capping or not doesnt matter). What rating factor should be given for it?? does it come under enclosed in conduit in an insulated wall?

THANKS!

 

[Leesparkykent]

Reference method C for T&E or sheathed cables embedded directly in masonry, brickwork, concrete, plaster or the like (other than thermally insulating materials).

You would only have to add a correction factor for ambient Temperature, covered in thermal insulation, cables grouped together, the use of semi enclosed fuses or encapsulated in conduit or trunking.

 

[assegayer]

Reference method C for T&E or sheathed cables embedded directly in masonry, brickwork, concrete, plaster or the like (other than thermally insulating materials).

You would only have to add a correction factor for ambient Temperature, covered in thermal insulation, cables grouped together, the use of semi enclosed fuses or encapsulated in conduit or trunking.

thanks mate what table is that on ?

 

[Leesparkykent]

thanks mate what table is that on ?

4A2 at a guess as books are in the office.

 

[Leesparkykent]

Just found my book in the van.... Number 57,table 4A2 page 344.

 

[assegayer]

Just found my book in the van.... Number 57,table 4A2 page 344.

thanks a ton mate