practical 2394 live tests

jkas1984 · Mar 27, 2014

hi there

hope you are all well

looking for a bit of info on the live tests ze,pfc,zs,rcd

i have done the BG course and doing the practical test next week and i am struggling to remember the correct procedure.

the test rig has a isolator which is locked off till you have finished the IR test.

in my notes i have wrote you keep it locked off with the main switch off for ZE?

should i have it unlocked and the test rig energized? the same goes for the rest off the tests.

cheers for the help.

jeff

Richard Burns · Mar 27, 2014

Once you have all your circuit details, ask for permission to isolate the installation, lock off the isolator and keep hold of the key, perform your internal inspections, and then test
Continuity of protective conductors including bonding
Continuity of ring final circuit conductors
Insulation resistance for the installation.
If all is OK at this point then, ensuring all breakers and the main switch are off, remove the isolation.
Ze can be conducted with the main switch off by testing at the incoming terminals, which will now be live, remember to reconnect the earthing conductor afterwards.
Then PEFC and PSCC can be measured in the same way
The RCD test will require power to the RCD so the main switch and RCD will be on but nothing else.
Functional testing then requires the installation to be fully powered; once you have replaced all cover and barriers and accessories.