Worksheetssafe isolation
Total questions: 9
Worksheet time: 5mins
Before you start the safe isolation procedure you should
seek permission
seek admission
turn off all breakers
prove yourself
what is the first step in safe isolation?
have a cup of tea
test the circuit
identify the circuit
use a proving unit
what should you do before turning off the main isolator?
turn off all the MCB's to power down the board
pray
turn all the lights in the house on
use a proving unit
what do you use to confirm the power is off?
A proving unit
A low resistance ohm meter
a volt stick
An approved voltage indicator
how can you check your voltage indicator is working properly?
use a proving unit
test it with another voltage indicator
you don't need to
a low resistance ohm meter
what is the name of the HSE guidance on voltage testers?
HS2
BS7671
GS38
HSE 63
what is the correct order for testing between conductors?
L-E, N-E, N-L
L-N, L-E, N-E
L-L, N-N, E-E
Bonding - CPC
how can we make sure no one can turn on a circuit we are working on?
Use a lock off kit and a sign
don't worry about it
hope
disconnect all the circuits
And where is the key?
on top of the CCU
In the boss's pocket
in the van
in your pocket
