Branch
Circuits Required,
NEC 220-4
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- Branch
circuits for lighting and for appliances, including motor-operated
appliances, shall be provided to supply the loads computed in
accordance with Section
220-3.
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- In
addition, branch circuits shall be provided for specific loads
not covered by Section
220-3 for small appliance loads as specified
in (b) below; and for laundry loads as specified in (c) below.
(a) Number of Branch Circuits. The minimum number of branch
circuits shall be determined from the total computed load and
the size or rating of the circuits used. In all installations,
the number of circuits shall be sufficient to supply the load
served. In no case shall the load on any circuit exceed the maximum
specified by Section 210-22.
(b) Small Appliance
Branch Circuits -- Dwelling Unit. In addition
to the number of branch circuits determined in accordance with
(a) above, two or more 20-ampere small appliance branch circuits
shall be provided for all receptacle outlets specified by Section
210-52 (Dwelling Unit Receptacle Outlets) for the
small appliance loads.
(c) Laundry Branch Circuits
-- Dwelling Unit. In addition to the number of branch
circuits determined in accordance with (a) and (b) above,
at least one additional 20-ampere branch circuit shall be
provided to supply the laundry receptacle outlet(s) required by
Section 210-52(f). This circuit shall have no other outlets.
(d) Load Evenly Proportioned Among Branch Circuits. Where
the load is computed on a volt-amperes-per-square foot basis,
the wiring system up to and including the branch-circuit panelboard(s)
shall be provided to serve not less than the calculated load.
This load shall be evenly proportioned among multioutlet branch
circuits within the panelboard(s). Branch-circuit overcurrent
devices and circuits need only be installed to serve the connected
load.
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