Você pode passar por outro circuito de iluminação através de uma lista de equipamentos para tal uso. Você não pode passar por algo como um circuito de eletrodomésticos.
Fornecerá a referência do código quando eu chegar em casa.
NEC 410.64 é a seção de código dos EUA.
410.64 Luminaires as Raceways
Luminaires shall not be used as a raceway for circuit conductors
unless they comply with 410.64(A), (B), or (C).
(A) Listed.
Luminaires listed and marked for use as a raceway shall be permitted
to be used as a raceway.
(B) Through-Wiring.
Luminaires identified for through-wiring, as permitted by 410.21,
shall be permitted to be used as a raceway.
(C) Luminaires Connected
Together.
Luminaires designed for end-to-end connection to form a continuous
assembly, or luminaires connected together by recognized wiring
methods, shall be permitted to contain the conductors of a 2-wire
branch circuit, or one multiwire branch circuit, supplying the
connected luminaires and shall not be required to be listed as a
raceway. One additional 2-wire branch circuit separately supplying one
or more of the connected luminaires shall also be permitted.