[Graeme Johnson]

Mr Doig is on the money?

You can also reference the EEA Guide to Live LV Electrical Work (extract below re tools)

We dont test the tools.

3.8 Insulated Tools
Insulated tools and equipment which are used for live LV work because of their insulation
properties should comply with BSEN 60900:2012 (Live Working – Handtools for use up to
1000V a.c. and 1500V d.c.), or an equivalent internationally recognised Standard.

Immediately prior to use, the insulated tools should be visually checked for defects such
as cuts, abrasions or cracking. Insulated tools should be kept in special containers to
prevent damage while in storage or being transported.

Note: Insulated Tools are available with protective ratings for up to 1000V AC nominal
maximum working voltage and the correctly rated tools must be selected for the nominal
voltage of the equipment to be worked on.