Wis. Admin. Code § Trans 305.58 – Wiring.

(1) Wiring for both low tension and high tension circuits shall be constructed and installed so as to function reliably and adequately.
(2) Required lamps shall be connected to the power source with stranded wire.
(3) Wiring shall, when possible, be grouped together and protected by tape, braid, sheath, tube or other covering capable of withstanding surface abrasion.
(4) Wiring shall be properly supported.
(5) Wiring may not be located where it is likely to be charred, overheated or enmeshed in moving parts.
(6) The edges of all holes in metal through which the wiring passes, unless the wiring is metal covered, shall be rolled or bushed with a grommet of rubber or other suitable material.

History: Cr. Register, February, 1996, No. 482, eff. 3-1-96.