Technical information

FEEDER AND BRANCH CIRCUITS

•the tap should not extend further than the BCP of the powered loads

•to guarantee the mechanical protection, the derivation should always be

enclosed in conduits or raceways (not walk over covers) the connection

points obviously excluded.The CEC furthermore requires the conductors to

be metallic.

Furthermore the NEC provides:

•if the tap leaves the panel it shall have a capacity of not less than 1/10 of

the size of the feeder protection

b) t

aps (cab les) of a length no more than 7.5 m (25 ft.): all the conditions set

should be respected:

•the size of the conductor should always be adjusted to the powered load

•the capacity of the conductor should not be less than 1/3 the size of the

feeder protection

•each tap should feed a single BCP (there is no limit to the number of loads

downstream from the BCP provided the relative conductors are protected

by the BCP on the basis of the rules already seen)

•mechanical protection should be guaranteed.The use of conduits or

raceways (not walk over covers) is recommended.

Maximum 10 ft (3.05 meters)