Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-45 - Electric power generation, transmission, and distribution › Section 296-45-545 - Trolley maintenance, jumpering or bypassing

Current through Register Vol. 24-14, July 15, 2024
(1) Energized trolley wire must be jumpered
			 when it is to be opened or cut.
(2)
			 Reaching over trolley wire(s) or system(s). Qualified electrical employees must
			 not reach over trolley wire(s) unless properly protected by line hose or rubber
			 blanket.
(3) Reaching across
			 sectional insulators. Qualified electrical employees must not reach across
			 section insulator(s), insulated spacer(s) or insulated approach.
(4) Polarity on either side of sectionalizing
			 breakers. Since the polarity on both sides of a sectionalizing insulator may be
			 different, it is required that prior to performance of work, tests be performed
			 with approved testing equipment to determine whether or not the polarity is the
			 same or different on one side of the sectional insulator as compared with the
			 other.
(5) Working on hangers. More
			 than one truck crew must not work on hangers attached to the same span at the
			 same time, without rubber protection.
(6) Workers on hangers of opposite polarity.
			 Trolley hangers and ears of opposite polarity must not be worked on at the same
			 time when trolley wire is energized.
(7) Checking electric switches. When electric
			 switches are checked for operation, making it necessary to short circuit the
			 contactor to each trolley wire, tools with insulated handles must be
			 used.
(8) Short circuit due to use
			 of noninsulated or conductive long handled tools. When a hazard of short
			 circuit exists, due to use of noninsulated or conductive long handled tools,
			 approved protective rubber equipment must be used as provided in this
			 chapter.
(9) Trolley feeders. When
			 work is to be performed on street railway trolley feeders where it is necessary
			 for workers to work from metal or other grounded poles or fixtures or on poles
			 or fixtures on which grounds are maintained, the feeders must be deenergized
			 unless the poles or fixtures are insulated before the work is started with
			 approved protective devices in such manner that employees cannot become
			 grounded while working on the feeders, and employees must wear approved rubber
			 gloves.
(10) Truck driver must
			 remain at tower controls while workers are working on towers except when the
			 aerial manlift equipment has been properly chocked to prevent uncontrolled
			 movement. Tower trucks must be equipped with a reliable signaling device
			 between the employees working on the tower and the truck driver.
(11) Working on truck towers. Employees must
			 not stand on tower gates or railings. Work must not be done from plank(s)
			 placed on tower railings.
(12)
			 Tower truck railings. Towers must have standard railings and toeboards around
			 the tower and all railings must be constructed of wood, fiberglass or other
			 nonmetallic material. All railings must be a vertical height of not less than
			 36 inches or more than 42 inches from the floor of the platform to the upper
			 surface of the top rail. Intermediate railings must be midway between the floor
			 and the underside of the top rail. Tower gates must be so constructed as to
			 prevent accidental opening.
(13)
			 Tower truck decks must be kept clear of tools, wire and other materials and
			 tools must be kept in proper storage area when not in use.
(14) Qualified electrical employees must not
			 wear climbers or spurs while working on a tower truck.
Statutory Authority:
				  RCW
				  49.17.010, [49.17].040, [49.17].050 and
				  [49.17].060. 98-07-009, § 296-45-545, filed 3/6/98, effective
				  5/6/98.