Question. In BS7671 what reg states about proving dead? Also about locking off?
None, although there are provisions (via a long list of Regulations in the standard) to ensure suitable devices for safe isolation are present.
The reason is that BS 7671 provides requirements for electrical installations, not a code of practice or requirements for working safely on electrical installations. It is also not a design manual for electrical installations.
The standard you're looking for if you want to know the requirements for safe operation of and general safety precautions for work on electrical installation is BS EN 50110-1 (along with BS EN 50110-2).
Where you have electrical test equipment setups, BS EN 50191 also applies.
Question. In BS7671 what reg states about proving dead? Also about locking off?
None, although there are provisions (via a long list of Regulations in the standard) to ensure suitable devices for safe isolation are present.
The reason is that BS 7671 provides requirements for electrical installations, not a code of practice or requirements for working safely on electrical installations. It is also not a design manual for electrical installations.
The standard you're looking for if you want to know the requirements for safe operation of and general safety precautions for work on electrical installation is BS EN 50110-1 (along with BS EN 50110-2).
Where you have electrical test equipment setups, BS EN 50191 also applies.
