Can MEN link share terminals?
Posted: Thu Dec 03, 2020 8:36 pm
On a commercial switchboard the MEN link (which was connected by lug not a screw type) was bolted onto the same stud as as another conductor on the earth and neutral connection.
The other conductors where extensions to a second earth and neutral bar of the the same enclosure.
To me this seemed wrong, bad practise and inconvenient if anything.
I can only find ref 2.9.4.3
provided with a separate terminal for—
(i) the incoming neutral conductor terminating at the switchboard;
and
(ii) the neutral conductor(s) associated with each outgoing circuit
originating at the switchboard.
(not sure if the conductors used for extended to another bar counts)
And possibly 5.3.5.1
Which may suggest a dedicated earthing terminal is required on the neutral bar.
Any other ref I'm missing is this compliant or not?
I tried to upload publics hopefully it worked
The other conductors where extensions to a second earth and neutral bar of the the same enclosure.
To me this seemed wrong, bad practise and inconvenient if anything.
I can only find ref 2.9.4.3
provided with a separate terminal for—
(i) the incoming neutral conductor terminating at the switchboard;
and
(ii) the neutral conductor(s) associated with each outgoing circuit
originating at the switchboard.
(not sure if the conductors used for extended to another bar counts)
And possibly 5.3.5.1
Which may suggest a dedicated earthing terminal is required on the neutral bar.
Any other ref I'm missing is this compliant or not?
I tried to upload publics hopefully it worked