reglab/statecodes huggingface dataset:
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37206 - Classifications that apply to this section

Current through Register Vol. 24-14, July 15, 2024
These hazardous locations are classified as follows:
(1)
Class I
				  locations
.
Locations in which flammable gases or vapors are
				  or may be present in the air in quantities sufficient to produce explosive or
				  ignitable mixtures. They include the following:
(a)
Class I, Division 1
				  locations
.
Locations where:
(i) Hazardous concentrations of flammable
				  gases or vapors may exist under normal operating conditions; or
(ii) Hazardous concentrations of such gases
				  or vapors may exist frequently because of repair or maintenance operations or
				  because of leakage; or
(iii)
				  Breakdown or faulty operation of equipment or processes might release hazardous
				  concentrations of flammable gases or vapors, and might also cause simultaneous
				  failure of electric equipment.
This classification usually includes locations
					 where:
(A) Volatile flammable liquids
				  or liquefied flammable gases are transferred from one container to
				  another;
(B) Interiors of spray
				  booths and areas in the vicinity of spraying and painting operations where
				  volatile flammable solvents are used;
(C) Locations containing open tanks or vats
				  of volatile flammable liquids;
(D)
				  Drying rooms or compartments for the evaporation of flammable
				  solvents;
(E) Locations containing
				  fat and oil extraction equipment using volatile flammable solvents;
(F) Gas generator rooms and other portions of
				  gas manufacturing plants where flammable gas may escape;
(G) Inadequately ventilated pump rooms for
				  flammable gas or for volatile flammable liquids;
(H) The interiors of refrigerators and
				  freezers in which volatile flammable materials are stored in open, lightly
				  stoppered, or easily ruptured containers; and
(I) All other locations where ignitable
				  concentrations of flammable vapors or gases are likely to occur in the course
				  of normal operations.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37209 - Equipment, wiring methods, and installations in hazardous locations

Current through Register Vol. 24-14, July 15, 2024
Equipment, wiring methods, and installations of equipment
					 in hazardous locations must be intrinsically safe, or approved for the
					 hazardous location, or safe for the hazardous location. Requirements for each
					 of these options are as follows:
(1)
				  Equipment and associated wiring approved as intrinsically safe are permitted in
				  any hazardous location for which it is approved.
(2) Requirements to be approved for the
				  hazardous location:
(a) Equipment must be
				  approved for the class of location and for the ignitable or combustible
				  properties of the specific gas, vapor, dust, or fiber that will be
				  present.
(b) Equipment must be
				  marked to show the class, group, and operating temperature or temperature
				  range, based on operation in a 40 degrees C (104 degrees Fahrenheit) ambient,
				  for which it is approved. The temperature marking must be a maximum of the
				  ignition temperature of the specific gas or vapor to be encountered. The
				  following provisions apply to specific equipment:
(i) Nonheat-producing equipment, such as
				  junction boxes, conduit, and fittings, and heat-producing equipment with a
				  maximum temperature of 100 degrees C (212 degrees Fahrenheit) need not have a
				  marked operating temperature or temperature range.
(ii) Fixed lighting fixtures marked for use
				  in Class I, Division 2 locations only, need not be marked to indicate the
				  group.
(iii) Fixed general-purpose
				  equipment in Class I locations (other than lighting fixtures) that is
				  acceptable for use in Class I, Division 2 locations need not be marked with the
				  class, group, division, or operating temperature.
(iv) Fixed dust-tight equipment (other than
				  lighting fixtures) that is acceptable for use in Class II, Division 2 and Class
				  III locations need not be marked with the class, group, division, or operating
				  temperature.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37212 - Installing conduit in hazardous locations

Current through Register Vol. 24-14, July 15, 2024
All conduits must be threaded and wrench-tight. Where it is
					 impractical to make a threaded joint tight, a bonding jumper must be
					 used.
97-09-013, recodified as § 296-307-37212, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37212, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37215 - Equipment to be used in Division 1 and 2 locations

Current through Register Vol. 24-14, July 15, 2024
Equipment that has been approved for a Division 1 location
					 may be installed in a Division 2 location of the same class and group.
					 General-purpose equipment or equipment in general-purpose enclosures may be
					 installed in Division 2 locations if the equipment does not constitute a source
					 of ignition under normal operating conditions.
97-09-013, recodified as § 296-307-37215, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37215, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37218 - Motors and generators used in hazardous locations

Current through Register Vol. 24-14, July 15, 2024
In Class I, Division 1 locations, motors, generators and
					 other rotating electric machinery must be:
(1) Approved for Class I, Division 1
				  locations (explosion-proof); or
(2)
				  Of the totally enclosed type supplied with positive-pressure ventilation from a
				  source of clean air with discharge to a safe area, arranged to prevent
				  energizing of the machine until ventilation has been established and the
				  enclosure has been purged with at least 10 volumes of air, and also arranged to
				  automatically deenergize the equipment when the air supply fails; or
(3) Of the totally enclosed inert-gas-filled
				  type supplied with a suitable reliable source of inert gas for pressuring the
				  enclosure, with devices provided to ensure a positive pressure in the enclosure
				  and arranged to automatically deenergize the equipment when the gas supply
				  fails; or
(4) Of a type designed to
				  be submerged in a liquid that is flammable only when vaporized and mixed with
				  air, or in a gas or vapor at a pressure greater than atmospheric and which is
				  flammable only when mixed with air; and the machine is arranged to prevent
				  energizing it until it has been purged with the liquid or gas to exclude air,
				  and also arranged to automatically deenergize the equipment when the supply of
				  liquid, or gas or vapor fails or the pressure is reduced to atmospheric.
Totally enclosed type (2) and (3) motors must have no
					 external surface with a Celsius operating temperature greater than 80% of the
					 ignition temperature of the gas or vapor involved, as determined by ASTM test
					 procedure (Designation: D-2155-69). Appropriate devices must be provided to
					 detect an increase in temperature of the motor beyond design limits and
					 automatically deenergize the equipment or provide an adequate alarm. Auxiliary
					 equipment must be approved for the location in which it is
					 installed.
97-09-013, recodified as § 296-307-37218, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37218, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-374 - Special systems

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-374, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-374, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37403 - Systems over 600 volts, nominal

Current through Register Vol. 24-14, July 15, 2024
(1) Wiring methods for fixed installations
				  over 600 volts, nominal, must meet the following requirements:
(a) Above-ground conductors must be installed
				  in rigid metal conduit, in intermediate metal conduit, in cable trays, in
				  cablebus, in other suitable raceways, or as open runs of metal-clad cable
				  suitable for the use and purpose. Open runs of nonmetallic-sheathed cable or of
				  bare conductors or busbars must be installed in locations accessible only to
				  qualified persons. Metallic shielding components, such as tapes, wires, or
				  braids for conductors, must be grounded. Open runs of insulated wires and
				  cables with a bare lead sheath or a braided outer covering must be supported to
				  prevent physical damage to the braid or sheath.
(b) Conductors emerging from the ground must
				  be enclosed in approved raceways.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37406 - Emergency power systems

Current through Register Vol. 24-14, July 15, 2024
This section applies to circuits, systems, and equipment
					 intended to supply power for illumination and special loads, in the event of
					 failure of the normal supply.
(1)
				  Emergency circuit wiring must be kept entirely independent of all other wiring
				  and equipment and must not enter the same raceway, cable, box, or cabinet as
				  other wiring.
Exception:
This does not apply where common circuit elements
							 suitable for the purpose are required, or for transferring power from the
							 normal to the emergency source.
(2) Where emergency lighting is necessary,
				  the system must be arranged so that the failure of any individual lighting
				  element, such as a burned out light bulb, cannot leave any space in total
				  darkness.
97-09-013, recodified as § 296-307-37406, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37406, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37409 - Classification of Class 1, Class 2, and Class 3 remote control, signaling, and power-limited circuits

Current through Register Vol. 24-14, July 15, 2024
(1)
				  Class 1, Class 2, or Class 3 remote control, signaling, or power-limited
				  circuits are characterized by their usage and electrical power limitation which
				  differentiates them from light and power circuits. These circuits are
				  classified according to their voltage and power limitations as follows.
(a) Class 1 circuits.
(i) A Class 1 power-limited circuit is
				  supplied from a source with a maximum rated output of 30 volts and 1000
				  volt-amperes.
(ii) A Class 1 remote
				  control circuit or a Class 1 signaling circuit has a maximum voltage of 600
				  volts; however, the power output of the source need not be limited.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37412 - Fire protective signaling systems

Current through Register Vol. 24-14, July 15, 2024
(1) Fire protective signaling circuits must
				  be classified either as nonpower limited or power limited.
(2) The power sources for use with fire
				  protective signaling circuits must be either power limited or nonlimited as
				  follows:
(a) The power supply of
				  nonpower-limited fire protective signaling circuits must have a maximum output
				  voltage of 600 volts.
(b) The power
				  for power-limited fire protective signaling circuits must be either inherently
				  limited, in which no over-current protection is required, or limited by a
				  combination of power source and overcurrent protection.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-376 - Working on or near exposed energized parts

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-376, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040, [49.17.]050 and[49.17.]060 .
						96-22-048, § 296-306A-376, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37603 - Scope

Current through Register Vol. 24-14, July 15, 2024
WAC
					 296-307-376
					 applies to work performed on exposed live parts (involving either direct
					 contact or contact by means of tools or materials) or near enough to them for
					 employees to be exposed to any hazard they present.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-37603,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-37603,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37603, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37606 - Qualified person working on energized parts

Current through Register Vol. 24-14, July 15, 2024
Only qualified persons may work on electric circuit parts
					 of equipment that have not been deenergized under the procedures of WAC
					 296-307-37807.
					 Qualified persons must be capable of working safely on energized circuits and
					 must be familiar with the proper use of special precautionary techniques,
					 personal protective equipment, insulating and shielding materials, and
					 insulated tools.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-37606,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-37606,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37606, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37609 - Working near low voltage lines

Current through Register Vol. 24-14, July 15, 2024
When employees are working near energized electrical
					 service conductors operating at 750 volts or less, employees must work in a
					 manner to prevent contact with the energized conductors.
97-09-013, recodified as § 296-307-37609, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37609, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37612 - Qualified persons working near overhead lines

Current through Register Vol. 24-14, July 15, 2024
When a qualified person is working near overhead lines,
					 whether in an elevated position or on the ground, the person must not approach,
					 or take any conductive object without an approved insulating handle, closer to
					 exposed energized parts than shown in WAC
					 296-307-150
					 unless:
(1) The person is insulated
				  from the energized part (gloves, with sleeves if necessary, rated for the
				  voltage involved are considered to be insulation of the person from the
				  energized part on which work is performed); or
(2) The energized part is insulated both from
				  all other conductive objects at a different potential and from the person;
				  or
(3) The person is insulated from
				  all conductive objects at a potential different from that of the energized
				  part.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-37612,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-37612,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37612, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37615 - Vehicles and mechanical equipment near overhead lines

Current through Register Vol. 24-14, July 15, 2024
(1) Any vehicle or mechanical equipment that
				  may have parts of its structure elevated near energized overhead lines must be
				  operated so that a clearance of 10 ft. is maintained. If the voltage is higher
				  than 50kV, the clearance must be increased 0.4 inch for every 1kV over the
				  voltage. The clearance may be reduced only if:
(a) The vehicle is in transit with its
				  structure lowered, the clearance may be reduced to 4 ft. If the voltage is
				  higher than 50kV, the clearance must be increased 0.4 inch for every 1kV over
				  that voltage.
(b) Insulating
				  barriers are installed to prevent contact with the lines, and if the barriers
				  are rated for the voltage of the line being guarded and are not a part of or an
				  attachment to the vehicle or its raised structure, the clearance may be reduced
				  to a distance within the designed working dimensions of the insulating
				  barrier.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37618 - Lighting for employees working near exposed energized parts

Current through Register Vol. 24-14, July 15, 2024
(1) Employees must
				  not enter spaces containing exposed energized parts, unless lighting is
				  provided that enables the employees to perform the work safely.
(2) Where lack of lighting or an obstruction
				  prevents an employee from seeing the work to be performed, employees must not
				  perform tasks near exposed energized parts. Employees must not reach blindly
				  into areas that may contain energized parts.
97-09-013, recodified as § 296-307-37618, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37618, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37621 - Working near exposed energized parts in confined spaces

Current through Register Vol. 24-14, July 15, 2024
(1) For working in
				  a confined or enclosed space (such as a manhole or vault) that contains exposed
				  energized parts, the employer must provide, and the employee must use,
				  protective shields, protective barriers, or insulating materials that are
				  necessary to avoid contact with these parts. Doors, hinged panels, and the like
				  must be secured to prevent swinging into an employee and causing the employee
				  to contact exposed energized parts.
(2) Conductive materials and equipment that
				  are in contact with any part of an employee's body must be handled in a manner
				  that will prevent them from contacting exposed energized conductors or circuit
				  parts. If an employee handles long conductive objects (such as ducts and pipes)
				  in areas with exposed live parts, the employer must institute work practices
				  (such as the use of insulation, guarding, and material handling techniques)
				  that will minimize the hazard.
(3)
				  Portable ladders must have nonconductive siderails if they are used where the
				  employee or the ladder could contact exposed energized parts.
(4) Conductive articles of jewelry and
				  clothing must not be worn if they might contact exposed energized
				  parts.
97-09-013, recodified as § 296-307-37621, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37621, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37624 - Housekeeping requirements that apply to working near exposed energized parts

Current through Register Vol. 24-14, July 15, 2024
(1) Where live
				  parts present an electrical contact hazard, employees must not perform
				  housekeeping duties near enough to the parts that there is a possibility of
				  contact, unless adequate safeguards (such as insulating equipment or barriers)
				  are provided.
(2) Electrically
				  conductive cleaning materials (including conductive solids such as steel wool,
				  metalized cloth, and silicon carbide, as well as conductive liquid solutions)
				  must not be used in proximity to energized parts unless procedures are followed
				  that will prevent electrical contact.
97-09-013, recodified as § 296-307-37624, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37624, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37627 - Qualified persons that may defeat an electrical safety interlock

Current through Register Vol. 24-14, July 15, 2024
Only a qualified person following the requirements of this
					 section may defeat an electrical safety interlock, and then only temporarily
					 while he or she is working on the equipment. The interlock system must be
					 returned to its operable condition when this work is
					 completed.
97-09-013, recodified as § 296-307-37627, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37627, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-378 - Safety-related work practices

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-378, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-378, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37801 - Scope

Current through Register Vol. 24-14, July 15, 2024
(1) WAC
				  296-307-376
				  and
				  296-307-378
				  cover electrical safety-related work practices for both qualified persons
				  (those who have training in avoiding the electrical hazards of working on or
				  near exposed energized parts) and unqualified persons (those with little or no
				  such training) working on, near, or with the following installations:
(a) Installations of electric conductors and
				  equipment within or on buildings or other structures, and on other premises
				  such as yards, parking, and other lots, and industrial substations;
(b) Installations of conductors that connect
				  to the supply of electricity;
(c)
				  Installations of other outside conductors on the premises; and
(d) Installations of optical fiber cable
				  where such installations are made along with electric conductors.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37803 - Training employees on safety practices

Current through Register Vol. 24-14, July 15, 2024
(1) The training requirements in this section
				  apply to employees who face a risk of electrical shock that is not reduced to a
				  safe level by the electrical installation requirements of WAC
				  296-307-362
				  through
				  296-307-374.
(2) Training contents must include the
				  following:
(a) Employees must be trained in
				  and familiar with the safety-related work practices required by WAC
				  296-307-376
				  through
				  296-307-378
				  that apply to their job assigrmients.
(b) Employees who are covered by this section
				  but who are not qualified persons must also be trained in and familiar with any
				  electrically related safety practices that are not covered by this standard,
				  but that are necessary for their safety.
(c) Qualified persons must, at a minimum, be
				  trained in and familiar with the following:
(i) The skills and techniques necessary to
				  distinguish exposed live parts from other parts of electric
				  equipment;
(ii) The skills and
				  techniques necessary to determine the nominal voltage of exposed live parts;
				  and
(iii) The clearance distance
				  specified in WAC
				  296-307-376
				  and the corresponding voltages to which the qualified person will be exposed.
Note 1:
For the purposes of WAC
							 296-307-376
							 and
							 296-307-378,
							 an employee must have the trammg required for a quahfied person in order to be
							 considered a quahfied person.
Note 2:
Quahfied persons whose work on energized equipment
							 involves either direct contact or contact by means of tools or materials must
							 also have the training needed to meet WAC
							 296-307-376.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37805 - Identification and use of safety-related work practices

Current through Register Vol. 24-14, July 15, 2024
Safety-related work practices must be used to prevent
					 electric shock or other injuries resulting from either direct or indirect
					 electrical contacts, when work is performed near or on equipment or circuits
					 that are or may be energized. The specific safety-related work practices must
					 be consistent with the nature and extent of the associated electrical
					 hazards.
(1) When an employee may be
				  exposed to live parts, they must be deenergized before the employee works on or
				  near them, unless deenergizing introduces other hazards or is infeasible due to
				  equipment design or operational limitations. Live parts that operate at less
				  than 50 volts to ground need not be deenergized if there will be no increased
				  exposure to electrical bums or to explosion due to electric arcs.
Note
1:
Examples of other hazards include deactivation of
							 emergency alarm systems, shutdown of hazardous location ventilation equipment,
							 or removal of illumination for an area.
Note
2:
An example of work that may be performed on or near
							 energized circuit parts because of unfeasibility due to equipment design or
							 operational limitations is testing of electric circuits that can only be
							 performed with the circuit energized.
(2) If the exposed live parts are not
				  deenergized (for reasons of increased or additional hazards or unfeasibility),
				  other safety-related work practices must be used to protect employees who may
				  be exposed to the electrical hazards involved. Such work practices must protect
				  employees against contact with energized circuit parts directly with any part
				  of their body or indirectly through some other conductive object. The work
				  practices must be suitable for the voltage level of the exposed electric
				  conductors or circuit parts.
97-09-013, recodified as § 296-307-37805, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37805, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37807 - Work on exposed deenergized parts

Current through Register Vol. 24-14, July 15, 2024
(1) This section applies to work on exposed
				  deenergized parts or near enough to them to expose the employee to any
				  electrical hazard they present. Conductors and parts of electric equipment that
				  have been deenergized but have not been locked out or tagged must be treated as
				  energized parts, and WAC
				  296-307-376
				  applies to work on or near them.
(2) While any employee is exposed to contact
				  with parts of fixed electric equipment or circuits which have been deenergized,
				  the circuits energizing the parts must be locked out or tagged or both
				  according to the requirements of this section. The requirements must be
				  followed in the order in which they are presented.
Fixed equipment
Equipment that is fastened or
					 cormected by permanent wiring methods.
Note:
Lockout and tagging procedures that comply with
								WAC
								296-307-320
								will also be deemed to comply with WAC 296-307-37807 through
								296-307-37817
								if:
1. The procedures address the electrical safety
								hazards covered by this part; and
2. The procedures include the requirements of WAC
								296-307-37813(4)
								 and
								296-307-37815(2).
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-37807,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-37807,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and[49.17.]060 .
						96-22-048, § 296-306A-37807, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37809 - An employer must have a written copy of lockout-tagout procedures

Current through Register Vol. 24-14, July 15, 2024
The employer must maintain a written copy of the procedures
					 outlined in WAC
					 296-307-37807
					 through
					 296-307-37817
					 and must make it available for inspection by us or by employees. The written
					 procedures may be in the form of a copy of WAC
					 296-307-37807
					 through
					 296-307-37817.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-37809,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-37809,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37809, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37811 - Deenergizing equipment

Current through Register Vol. 24-14, July 15, 2024
(1)
				  Safe procedures for deenergizing circuits and equipment must be determined
				  before circuits or equipment are deenergized.
(2) The circuits and equipment to be worked
				  on must be disconnected from all electric energy sources. Control circuit
				  devices, such as push buttons, selector switches, and interlocks, must not be
				  used as the sole means for deenergizing circuits or equipment. Interlocks for
				  electric equipment must not be used as a substitute for lockout and tagging
				  procedures.
(3) Stored electric
				  energy which might endanger employees must be released. Capacitors must be
				  discharged and high capacitance elements must be short-circuited and grounded,
				  if the stored electric energy might endanger employees.
Note:
Capacitors or associated equipment handled in meeting
							 this requirement must be treated as energized.
(4) Stored nonelectrical energy in devices
				  that could reenergize electric circuit parts must be blocked or relieved to the
				  extent that the circuit parts could not be accidentally energized by the
				  device.
97-09-013, recodified as § 296-307-37811, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37811, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37813 - Application of locks and tags

Current through Register Vol. 24-14, July 15, 2024
(1) A
				  lock and a tag must be placed on each disconnecting means used to deenergize
				  circuits and equipment on which work is to be performed, except as provided in
				  subsections (3) and (5) of this section. The lock must be attached to prevent
				  anyone from operating the disconnecting means unless they resort to undue force
				  or the use of tools.
(2) Each tag
				  must have a statement prohibiting unauthorized operation of the disconnecting
				  means and removal of the tag.
(3)
				  If a lock cannot be applied, or if tagging procedures will provide a level of
				  safety equivalent to that obtained by the use of a lock, a tag may be used
				  without a lock.
(4) A tag used
				  without a lock must be supplemented by at least one additional safety measure
				  that provides a level of safety equivalent to that obtained by the use of a
				  lock. Examples of additional safety measures include the removal of an
				  isolating circuit element, blocking of a controlling switch, or opening of an
				  extra disconnecting device.
(5) A
				  lock may be placed without a tag only under the following conditions:
(a) Only one circuit or piece of equipment is
				  deenergized; and
(b) The lockout
				  period does not extend beyond the work shifts; and
(c) Employees exposed to the hazards
				  associated with reenergizing the circuit or equipment are familiar with this
				  procedure.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37815 - Verifying deenergization

Current through Register Vol. 24-14, July 15, 2024
The requirements of this section must be met before any
					 circuits or equipment can be considered and worked as deenergized.
(1) A qualified person must operate the
				  equipment operating controls or otherwise verify that the equipment cannot be
				  restarted.
(2) A qualified person
				  must use test equipment to test the circuit elements and electrical parts of
				  equipment to which employees will be exposed and must verify that the circuit
				  elements and equipment parts are deenergized. The test must also determine if
				  any energized conditions exists as a result of inadvertently induced voltage or
				  unrelated voltage backfeed even though specific parts of the circuit have been
				  deenergized and presumed to be safe. If the circuit to be tested is over 600
				  volts, nominal, the test equipment must be checked for proper operation
				  immediately before and immediately after this test.
97-09-013, recodified as § 296-307-37815, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37815, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37817 - Reenergizing equipment

Current through Register Vol. 24-14, July 15, 2024
These requirements must be met, in the order given, before
					 circuits or equipment are reenergized, even temporarily.
(1) A qualified person must conduct tests and
				  visual inspections as necessary to verify that all tools, electrical jumpers,
				  shorts, grounds, and other devices have been removed, so that the circuits and
				  equipment can be safely energized.
(2) Employees exposed to the hazards
				  associated with reenergizing the circuit or equipment must be warned to stay
				  clear of circuits and equipment.
(3) Each lock and tag must be removed by the
				  employee who applied it or under his or her direct supervision. However, if
				  this employee is absent from the workplace, then the lock or tag must be
				  removed by a qualified person designated to perform this task if:
(a) The employer ensures that the employee
				  who applied the lock or tag is not available at the workplace; and
(b) The employer ensures that the employee is
				  aware that the lock or tag has been removed before resuming work at that
				  workplace.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37819 - Portable electric equipment

Current through Register Vol. 24-14, July 15, 2024
This section applies to using cord-connected and
					 plug-connected equipment, including flexible cord sets (extension
					 cords).
(1) Portable equipment must be
				  handled in a manner that will not cause damage. Flexible electric cords
				  connected to equipment must not be used for raising or lowering the equipment.
				  Flexible cords must not be fastened with staples or otherwise hung in a way
				  that could damage the outer jacket or insulation.
(2) Visual inspection requirements:
(a) Portable cord-connected and
				  plug-connected equipment and flexible cord sets must be visually inspected
				  before use on any shift for external defects (such as loose parts, deformed and
				  missing pins, or damage to outer jackets or insulation) and for evidence of
				  possible internal damage (such as pinched or crushed outer jacket).
				  Cord-connected and plug-connected equipment and flexible cord sets that remain
				  connected once they are in place and are not exposed to damage need not be
				  visually inspected until they are relocated.
(b) If there is a defect or evidence of
				  damage that might expose an employee to injury, the defective or damaged items
				  must be removed from service, and employee shall not be allowed to use it until
				  repairs and tests necessary to render the equipment safe have been
				  made.
(c) When an attachment plug
				  is to be connected to a receptacle (including any on a cord set), the
				  relationship of the plug and receptacle contacts must first be checked to
				  ensure they are of proper mating configurations.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37821 - Electric power and lighting circuits

Current through Register Vol. 24-14, July 15, 2024
(1) Load rated switches, circuit breakers, or
				  other devices specifically designed as disconnecting means must be used for the
				  opening, reversing, or closing of circuits under load conditions. Any cable
				  connectors other than the load-break type, fuses, terminal lugs, and cable
				  splice connections are prohibited for such purposes, except in an
				  emergency.
(2) After a circuit is
				  deenergized by a circuit protective device, the circuit must not be manually
				  reenergized until it has been determined that the equipment and circuit can be
				  safety energized. This repetitive manual reclosing of circuit breakers or
				  reenergizing circuits through replaced fuses is prohibited.
Note:
When it can be determined from the design of the
							 circuit and the overcurrent devices involved that the automatic operation of a
							 device was caused by an overload rather than a fault connection, no examination
							 of the circuit or connected equipment is needed before the circuit is
							 reenergized.
(3) Overcurrent protection of circuits and
				  conductors must not be modified, even on a temporary basis, beyond that allowed
				  by this part for the installation safety requirements for overcurrent
				  protection.
97-09-013, recodified as § 296-307-37821, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37821, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37823 - Test instruments and equipment

Current through Register Vol. 24-14, July 15, 2024
(1) Only qualified persons may perform
				  testing work on electric circuits or equipment.
(2) Test instruments and equipment and all
				  associated test leads, cables, power cords, probes, and connectors must be
				  visually inspected for external defects and damage before the equipment is
				  used. If there is a defect or evidence of damage that might expose an employee
				  to injury, the defective or damaged item must be removed from service, and no
				  employee may use it until necessary repairs and tests to render the equipment
				  safe have been made.
(3) Test
				  instruments and equipment and their accessories must be rated for the circuits
				  and equipment to which they will be connected and must be designed for the
				  environment in which they will be used.
97-09-013, recodified as § 296-307-37823, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37823, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-37825 - Flammable materials

Current through Register Vol. 24-14, July 15, 2024
Where flammable materials are present only occasionally,
					 electric equipment capable of igniting them must not be used, unless measures
					 are taken to prevent hazardous conditions from developing.
Such materials include, but are not limited to: Flammable
					 gases, vapors, or liquids; combustible dust; and ignitable fibers or
					 flyings.
Note:
Electrical installation requirements for locations
							 where flammable materials are present on a regular basis are contained in WAC
							 296-307-372.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-37825,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-37825,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-37825, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-380 - Electrical protective equipment

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-380, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-380, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › INDOOR OPERATIONS › Part T - Electrical › Section 296-307-38003 - Use of protective equipment

Current through Register Vol. 24-14, July 15, 2024
(1) Employees working in the areas where
				  there are potential electrical hazards must have and use electrical protective
				  equipment that is appropriate for the specific parts of the body to be
				  protected and for the work to be performed.
(2) If the insulating capability of
				  protective equipment may be subject to damage during use, the insulating
				  material must be protected.
For example: An outer covering of leather is sometimes used
					 to protect rubber insulating material.
(3) Employees must wear nonconductive head
				  protection wherever there is a danger of head injury from electric shock or
				  burns due to contact with exposed energized parts.
(4) Employees must wear protective equipment
				  for the eyes or face wherever there is danger of injury to the eyes or face
				  from electrical arcs or flashes or from flying objects resulting from
				  electrical explosion.
97-09-013, recodified as § 296-307-38003, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-38003, filed 10/31/96, effective
						12/1/96.