This ones got me scratching my head.
As part of a PIR the smoke alarm wiring was inspected.
The installer used Kiddie heat and smoke detectors and round plaster board boxes to house the connections - nice job.
The 1st head was wired directly from the ground floor lighting MCB.
The earth in the supply cable was sleeved GY and connected to the CU earth bar. At the head the earth went into a 5amp choc block.
The other heads were then interlinked using 1.5mm T&E with the earth sleeved white and connected to the white cable from the Kiddie head.
Questions
Is the white cable from the Kiddie head classed as a functional earth? If not why is it white?
In the context of a PIR is the above unsafe?
Does it break any regulations?
Would you code it and if yes, what code?
As part of a PIR the smoke alarm wiring was inspected.
The installer used Kiddie heat and smoke detectors and round plaster board boxes to house the connections - nice job.
The 1st head was wired directly from the ground floor lighting MCB.
The earth in the supply cable was sleeved GY and connected to the CU earth bar. At the head the earth went into a 5amp choc block.
The other heads were then interlinked using 1.5mm T&E with the earth sleeved white and connected to the white cable from the Kiddie head.
Questions
Is the white cable from the Kiddie head classed as a functional earth? If not why is it white?
In the context of a PIR is the above unsafe?
Does it break any regulations?
Would you code it and if yes, what code?