Exception: Flexible conduit or armored cables may be used between hoistway risers and limit switches, hoistway door interlocks or contacts and signal or stop buttons and similar devices. All conduits, armored cable, electrical metallic tubing, metal wireways and flexible conduits carrying electrical conductors located within hoistways shall be securely fastened to the hoistway construction or to the guide rails or to the guide rail supports.
The flexible traveling cable, connecting the platform to the stationary hoistway wiring, shall be provided in a flame retardant and moisture resistant outer cover.
Conn. Agencies Regs. § 19-411-C12