PIR - what code...if any?

[Welchyboy]

I have started a PIR for a small work shop and have come accross a 1.5mm 4 coreSWA supply feeding the overhead low bay lights, the cable is terminated into galv adaptable boxes at various points with the lights flexes entering the boxes, the workmanship is good and all seems in order but the 4 core carries two single phase circuits on two separate mcbs (2x10A) from a single phase lighting board(2x live, 2x neutrals, sheathed earth with independant 4mm earth run with it)these are switched separatly also.

Now would you code this, or maybe at least add a warning label on the points of termination, but i am thinking along the lines of if it was singles in conduit it would be fine so really the SWA is just a mechanical protection, there are no crossed or borrowed neutrals, just 4 cores in one cable, i have seen multicore SWA used with more than 1 circuit before so i would assume this is the same

Any input??

 

[netblindpaul]

Initial thoughts for 10 seconds, other than labelling to indicate multiple sources of supply no, but I would need to consider a little more

 

[PC Electrics]

You should label the CU and joint boxes to state that there are two points of isolation. Otherwise it's okay as long as the circuits meet all the usual design requirements.

 

[yellowvanman]

You should label the CU and joint boxes to state that there are two points of isolation. Otherwise it's okay as long as the circuits meet all the usual design requirements.

Agreed

 

[Welchyboy]

Yeah that makes sense, all the readings are well in, just ensuring i wasnt overlooking something thanks lads