Safe Means Of isolation

[electricpawn]

Hello all,

Ive just started the C&G 2330 Level 2, year one of my sparky training.
My question is this.....

If i want to replace a faulty light eg emergency light or bulkhead light ie swap a fault unit and put a new unit in place i have to follow a Safe Means of isolation....Can anyone tell me in practice what this means and what is legally required qualification wise and what type of tester is legal to test for a live or dead mains supply ?

i have a C&G in Electrical Engineering but do not have 2330 yet.

Any advice would be greatful.

 

[mechelec]

This may help
http://www.esc.org.uk/pdfs/business-and-community/electrical-industry/BPG2_08.pdf

 

[thepurple1]

1)check your volt tester at a known live source
2)check the item you want to isolate
3)islolate power and padlock off
4 Re-check the isolated item

 

[Mark.W]

1. Locate the circuit
2. Test your tester
3. Test the circuit is dead
4. Test your tester again
5. Lock off and place warning signs, barriers etc