In preparation for an EVSE installation, I am running the supply cable from the main CU, via catenary, to a new CU in my garage.

The cable is 6mm twin-core + cpc NYY-J (Tuf Sheath-type), which is not the easiest of cables to bend!

I have a length of the cable coming out of a walk-in cupboard where the main CU is located, which then runs via 38mm x 25mm mini trunking across the kitchen before going outside.

The issue I have is that, due to a quirk in the building's architecture, at the outside wall end, I have a 90 degree bend, followed by a short (2"-3") run, then another 90 degree bend with another 2"-3" run before going through the outer wall.

As I have intimated, I am not finding the cable the easiest to bend, so my question is: Is it permissible to strip the outer sheath for this short length, leaving the inner cores to bend more easily (as per the image below)?

Conduit Route_edit.png

To my logic, this would be no different to me using conduit cable for the entire length - albeit in PVC trunking (can conduit cable even be used in mini-trunking?).
 
The installation has now been completed and the spark agreed that it would be permissible to strip back to the inner cores as I suggested.
 
Not an ideal solution in my opinion but if the installer is happy and has signed the cert. then all is good.
 
dreadful, I couldn't sleep at night after that install, it may just about pass but the quality of work is substandard IMO
 

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Title
Cabling in Trunking advice
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DIY Electrical Advice
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Created
20IDG24,
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MDJ,
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