Code of Practice for the Electricity (Wiring) Regulations - 2009 Edition

Checklist No. 4—Additional Items For New L.V. Installation
Installation Address: __________________________________________
Tested by/Date
(N/A if not applicable)
(a) Switchboards,
switches
circuit breakers and main
(i) Safe access and adequate clearance space
provided.
(ii) Number of source of supply: ______ and
the rating of each of them: _____________
___________________
_____________________________________ ___________________
(iii) Maximum loading approved by the
electricity supplier: ____________________
(iv) Suitable interlock scheme provided to
prevent parallel operation of two or more
sources of supply and 4-pole incoming and
interconnecting circuit breakers provided
for supply to be taken from more than one
___________________
source and is interconnected.
(v) Electrically and mechanically interlocked
4-pole changeover device(s) where standby
___________________
generator set(s) is installed.
(vi) The breaking capacity of the main switch is
______ kA and all circuit breakers/interconnection
devices are able to withstand
___________________
the prospective fault current.
(vii) Protective relays have been correctly set
and overcurrent protective devices suitably
___________________
set for all circuits.
(viii) Protective type C.T. are used for protective
___________________
relays.
(ix) A means of isolation provided for every
___________________
circuit.
(x) Operation of circuit breakers and main
___________________
switches checked.
(xi) Control, indication and alarm functions
___________________
checked.
(xii) No undersized conductor used between the
___________________
main busbar and fuse/MCB’s.
(xiii) Fuses/MCB’s matching the lowest rated
___________________
conductor in the circuit.
___________________
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