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It looks as though they are double insulated flexi tails, hence the colour.
Meter tails or other insulated and sheathed cables, the basic insulation over the conductor and the non-metallic sheath are deemed to comply with the requirements for both basic and fault protection in Regulation 412.2 and hence don’t need to be installed in containment (unless required for mechanical protection). What this also means is that removal of the outer sheath to enable the colour of the core to be identified outside of a wiring accessory (e.g. a meter or service block) should not be done, as the cable will have been reduced to having basic insulation only.
I would be looking at if the tails run through the fabric of the building as to whether it needs some protection.
Meter tails or other insulated and sheathed cables, the basic insulation over the conductor and the non-metallic sheath are deemed to comply with the requirements for both basic and fault protection in Regulation 412.2 and hence don’t need to be installed in containment (unless required for mechanical protection). What this also means is that removal of the outer sheath to enable the colour of the core to be identified outside of a wiring accessory (e.g. a meter or service block) should not be done, as the cable will have been reduced to having basic insulation only.
I would be looking at if the tails run through the fabric of the building as to whether it needs some protection.
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