WAC 296-307-36845
WAC 296-307-36845. Wiring for appliances
(1) Appliances, other than those in which the current-carrying parts at high temperatures are necessarily exposed, must have no live parts normally exposed to employee contact.
(2) Each appliance must have a disconnecting means.
(3) Each appliance must be marked with its rating in volts and amperes or volts and watts.