WAC 296-59-075
Electrical equipment and distribution. (1) National Electrical Code to prevail. All electrical
installations and electrical utilization equipment shall
comply with the National Electrical Code requirements.
Exception:
In instances where (N.E.C.) conflicts with ANSI B77.1 with respect to tramways, surface lifts, or tows, ANSI B77.1
shall prevail.
(2) Authorized personnel to do electrical work. Only
those persons who are qualified to do the work assigned and
are authorized by the employer shall be allowed to perform
electrical work on any electrical equipment or wiring
installations.
(3) High voltage areas to be guarded. Motor rooms,
switch panel rooms, or other areas where persons may come in
contact with high voltages shall be fenced off or be enclosed
in a separate area. The gate, door, or access to such area
shall be posted with a notice stating that only authorized
persons are allowed in the area.
(4) Control panels. In areas where mobile equipment
operates, floor stand panels shall be protected from being
struck by moving equipment. Start or run handles and buttons
shall be protected from accidental actuation.
(5) Switches or control devices. Switches, circuit
breakers, or other control devices shall be so located that
they are readily accessible for activation or deactivation and
shall be marked to indicate their function or machine which
they control. The positions of ON and OFF shall be marked or
indicated and provision shall be made for locking out the
circuit.
(6) Starting requirements for electrically driven
equipment after power failure. Electrically driven equipment
shall be so designed that it will not automatically start upon
restoration of power after a power failure if it will create a
hazard to personnel.
(7) Posting equipment automatically activated or remotely
controlled. Equipment which is automatically activated or
remotely controlled shall be posted, warning persons that
machine may start automatically if it will create a hazard to
personnel.