Elec wiring and Plastic trunking

[ac1951]

Are there any specific rules regarding the use of plastic trunking ?
I know someone who has recenty had there house re-wired and the cables
leaving the CU go via a 2"x1" plastic trunking ajacent to a window and
hidden by the curtains. A power socket feed routes through a store
cupboard again enclosed in plastic trunking then through the wall to a
socket in the dinning room. All power into the kitchen runs intially
down a plastic trunking then behind the fitted units.

Is this now becoming the preference in place of chipping out the
plaster and burying the cables ?

..

 

[Andy Wade]

Are there any specific rules regarding the use of plastic trunking ?
I know someone who has recenty had there house re-wired and the cables
leaving the CU go via a 2"x1" plastic trunking [...]

It's not uncommon to find in that sort of situation that the 'standard'
cable sizes have been used, without any consideration of cable grouping
factors. If properly designed the sizes required can easily become
excessive and splitting the outgoing circuits into sub-groups in
separate spaced conduit or trunking runs would be a better option.