Det beror på vilka utlopp i köket som kretsen serverar.
Du kan ha ytterligare 15 A-kretsar som inte betjänar bänkskivor i köket så länge du har två 20 A-grenkretsar för små apparater enligt 210.11 (C) och 210.52 (B) som kräver alla bänkskivor. Jag har personligen två dedikerade 15 A-kretsar som serverar mitt kylskåp och diskmaskin.
Tillämpliga klausuler per NFPA-70: 2014 (a.c. 2014 NEC):
210.11 Branch Circuits Required.
(C) Dwelling Units.
(1) Small-Appliance Branch Circuits. In addition to the
number of branch circuits required by other parts of this
section, two or more 20-ampere small-appliance branch circuits
shall be provided for all receptacle outlets specified by
210.52(B).
...
210.52 Dwelling Unit Receptacle Outlets
(B) Small Appliances.
(1) Receptacle Outlets Served. In the kitchen,
pantry, breakfast room, dining room, or similar area of a dwelling
unit, the two or more 20-ampere small-appliance branch circuits
required by 210.11(C)(1) shall serve all wall and floor receptacle
outlets covered by 210.52(A), all countertop outlets covered by
210.52(C), and receptacle outlets for refrigeration equipment.
Exception No. 1: In addition to the required receptacles specified by
210.52, switched receptacles supplied from a general-purpose branch circuit as defined in 210.70(A)(1), Exception No. 1, shall be
permitted.
Exception No. 2: The receptacle outlet for refrigeration
equipment shall be permitted to be supplied from an individual branch
circuit rated 15 amperes or greater.
(2) No Other Outlets. The two or
more small-appliance branch circuits specified in 210.52(B)(1) shall
have no other outlets. Exception No. 1: A receptacle installed solely
for the electrical supply to and support of an electric clock in any
of the rooms specified in 210.52(B)(1). Exception No. 2: Receptacles
installed to provide power for supplemental equipment and lighting on
gas-fired ranges, ovens, or counter-mounted cooking units.