reglab/statecodes huggingface dataset:
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › MOTOR CONTROLLERS › Section 2530.82 - Controller Design

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						  Starting and Stopping. Each controller shall be capable of starting and
						  stopping the motor it controls, and shall be capable of interrupting the
						  stalled-rotor current of the motor.
(b) Autotransformer. An autotransformer
						  starter shall provide an off position, a running position, and at least one
						  starting position. It shall be so designed that it cannot rest in the starting
						  position or in any position that will render the overload device in the circuit
						  inoperative.
(c) Rheostats.
						  Rheostats shall be in compliance with the following:
(1) Motor-starting rheostats shall be so
						  designed that the contact arm cannot be left on intermediate segments. The
						  point or plate on which the arm rests when in the starting position shall have
						  no electrical connection with the resistor.
(2) Motor-starting rheostats for direct
						  current motors operated from a constant voltage supply shall be equipped with
						  automatic devices that will interrupt the supply before the speed of the motor
						  has fallen to less than 1/3 its normal value.
(Title 24, Part 3, Section
							 430-82.)
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › MOTOR CONTROLLERS › Section 2530.83 - Rating

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The controller shall have a horsepower rating not
							 lower than the horsepower rating of the motor.
EXCEPTION: No. 1: For a stationary motor rated at 2
							 horsepower or less, and 300 volts or less, the controller shall be permitted to
							 be a general-use switch having an ampere rating not less than twice the full
							 load current rating of the motor. On AC circuits, general-use snap switches
							 suitable only for use on AC (not general-use AC-DC snap switches) shall be
							 permitted to control a motor rated at 2 horsepower or less and 300 volts or
							 less having a full load current rating not more than 80 percent of the ampere
							 rating of the switch.
EXCEPTION: No. 2: A branch circuit inverse time
							 circuit breaker rated in amperes only shall be permitted as a controller. Where
							 this circuit breaker is also used for overload protection, it shall conform to
							 the appropriate provisions of this Article governing overload
							 protection.
EXCEPTION: No. 3: The motor controller for a torque
							 motor shall have a continuous-duty full load current rating not less than the
							 nameplate current rating of the motor.
(Title 24, Part 3, Section
							 430-83.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
3. Editorial
							 correction of EXCEPTION No. 1 (Register 92, No.
							 15).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code; and Section
								18943(c),
								Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › MOTOR CONTROLLERS › Section 2530.84 - Need Not Open All Conductors

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The controller shall not be required to open all
							 conductors to the motor.
EXCEPTION: Where the controller serves also as a
							 disconnecting means, it shall open all ungrounded conductors to the
							 motor.
(Title 24, Part 3, Section
							 430-84.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code; and Section
								18943(c),
								Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › MOTOR CONTROLLERS › Section 2530.86 - Motor Not in Sight from Controller

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) If a motor and the driven machinery are
						  not in sight from the controller location, the installation shall comply with
						  one of the following conditions:
(1) The
						  controller disconnecting means shall be capable of being locked in the open
						  position.
(2) A manually operable
						  switch that will disconnect the motor from its source of supply shall be placed
						  in sight from the motor location. (Title 24, Part 3, Section
						  430-86.)
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.102 - In Sight from Controller Location

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
An individual disconnecting means shall be provided
							 for each controller. A disconnecting means shall be located in sight from the
							 controller location.
EXCEPTION: A single disconnecting means may be
							 located adjacent to a group of coordinated controllers mounted adjacent to each
							 other on a multi-motor continuous process machine.
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
3. Amendment of
							 section and NOTE filed 5-5-2008; operative 5-5-2008. Submitted to OAL for
							 printing only pursuant to Labor Code
							 142.3(a)(3)
							 (Register 2008, No. 19).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.103 - To Disconnect Both Motor and Controller

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The disconnecting means shall disconnect the motor
							 and the controller from all ungrounded supply conductors and shall be so
							 designed that no pole can be operated independently. The disconnecting means
							 shall be permitted in the same enclosure with the controller. (See Section
							 2530.113 for equipment receiving
							 energy from more than one source.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
3. Amendment of
							 section and NOTE filed 5-5-2008; operative 5-5-2008. Submitted to OAL for
							 printing only pursuant to Labor Code
							 142.3(a)(3)
							 (Register 2008, No. 19).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.104 - To Be Indicating

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The disconnecting means shall plainly indicate
							 whether it is in the "open" (off) or "closed" (on) position.
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
3. Amendment of
							 section and NOTE filed 5-5-2008; operative 5-5-2008. Submitted to OAL for
							 printing only pursuant to Labor Code
							 142.3(a)(3)
							 (Register 2008, No. 19).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.105 - Grounded Conductors

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
One pole of the disconnecting means shall be
							 permitted to disconnect a permanently grounded conductor, provided the
							 disconnecting means is so designed that the pole in the grounded conductor
							 cannot be opened without simultaneously disconnecting all conductors of the
							 circuit.
(Title 24, Part 3, Section
							 430-105.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code; and Section
								18943(c),
								Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.106 - Service Switch as Disconnecting Means

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Where an installation consists of a single motor, the
							 service switch may serve as the disconnecting means if it complies with this
							 Article and is within sight from the controller location.
(Title 24, Part 3, Section
							 430-106.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code; and Section
								18943(c),
								Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.107 - Readily Accessible

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The disconnecting means shall be readily accessible.
							 If more than one disconnect is provided for the same equipment, only one need
							 be readily accessible.
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment deleting subsection (a) designation only filed 8-27-86; effective
							 thirtieth day thereafter (Register 86, No. 37).
3. Amendment of
							 section and NOTE filed 5-5-2008; operative 5-5-2008. Submitted to OAL for
							 printing only pursuant to Labor Code
							 142.3(a)(3)
							 (Register 2008, No. 19).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.112 - Motors Served by Single Disconnecting Means

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Each motor shall be provided with an
						  individual disconnecting means.
EXCEPTION: A single disconnecting means shall be
							 permitted to serve a group of motors under any one of the following
							 conditions:
(1) Where a number of
						  motors drive several parts of a single machine or piece of apparatus, such as
						  metal or woodworking machines, cranes, and hoists.
(2) Where a group of motors is in a single
						  room within sight from the location of the disconnecting means.
(3) Where a group of motors is under the
						  protection of one set of branch-circuit protective devices.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.113 - Energy from More Than One Source

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Equipment receiving electrical energy from more than
							 one source shall be provided with disconnecting means from each source of
							 electrical energy immediately adjacent to the equipment served. Each source
							 shall be permitted to have a separate disconnecting means.
(Title 24, Part 3, Section
							 430-113 without the
							 Exceptions.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment filed 8-27-86; effective thirtieth day thereafter (Register 86, No.
							 37).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code; and Section
								18943(c),
								Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.120

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Motors, motor-control apparatus, and motor
							 branch-circuit conductors shall be protected against overheating due to motor
							 overloads or failure to start, and against short-circuits or ground faults.
							 These provisions do not require overload protection that will stop a motor
							 where a shutdown is likely to introduce additional or increased hazards, as in
							 the case of fire pumps, or where continued operation of a motor is necessary
							 for a safe shutdown of equipment or process and motor overload sensing devices
							 are connected to a supervised alarm.
1. New
							 section filed 5-5-2008; operative 5-5-2008. Submitted to OAL for printing only
							 pursuant to Labor Code
							 142.3(a)(3)
							 (Register 2008, No. 19).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 56 - MOTORS, MOTOR CIRCUITS AND CONTROLLERS › DISCONNECTING MEANS › Section 2530.121

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Where live parts of motors or controllers operating
							 at over 150 volts to ground are guarded against accidental contact only by
							 location, and where adjustment or other attendance may be necessary during the
							 operation of the apparatus, suitable insulating mats or platforms shall be
							 provided so that the attendant cannot readily touch live parts unless standing
							 on the mats or platforms.
1. New
							 section filed 5-5-2008; operative 5-5-2008. Submitted to OAL for printing only
							 pursuant to Labor Code
							 142.3(a)(3)
							 (Register 2008, No. 19).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 57 - Transformers and Transformer Vaults (Including Secondary Ties) › Section 2533.1 - Scope

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
This Article covers the installation of all
						  transformers.
EXCEPTION: No: 1: Current transformers.
EXCEPTION: No: 2: Dry-type transformers that constitute
						  a component part of other apparatus and comply with the requirements for such
						  apparatus.
EXCEPTION: No: 3: Transformers which are an integral
						  part of an X-ray, high-frequency, or electrostatic-coating apparatus.
EXCEPTION: No: 4: Transformers for sign and outline
						  lighting that comply with Article 73.
EXCEPTION: No: 5: Transformers for electric-discharge
						  lighting that comply with Article 51.
EXCEPTION: No: 6: Transformers used for power limited
						  fire protective signaling circuits.
EXCEPTION: No: 7: Transformers used with Class 2 and
						  Class 3 circuits.
EXCEPTION: No: 8: Liquid-filled or dry-type
						  transformers used for research, development, or testing, where effective
						  arrangements are provided to safeguard unqualified persons from contacting
						  high-voltage terminals or energized conductors.
This Article also covers the installation of
						  transformers in hazardous locations as modified by Article
						  59.
1.
						  Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
						  Editorial correction filed 11-3-83 (Register 83, No. 45).
3.
						  Amendment filed 8-27-86; effective thirtieth day thereafter (Register 86, No.
						  37).
4. Amendment of section and NOTE filed 5-5-2008; operative
						  5-5-2008. Submitted to OAL for printing only pursuant to Labor Code
						  142.3(a)(3)
						  (Register 2008, No. 19).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 57 - Transformers and Transformer Vaults (Including Secondary Ties) › GENERAL PROVISIONS › Section 2533.2 - Location

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Transformers and transformer vaults shall be readily
							 accessible to qualified personnel for inspection and maintenance.
EXCEPTION: Dry-type transformers located in the open
							 on walls, columns, or structures, shall not be required to be readily
							 accessible.
(Title 24, Part 3, Section
							 450-2.)
1.
							 Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
							 Amendment filed 8-27-86; effective thirtieth day thereafter (Register 86, No.
							 37).
Note: Authority cited: Section
								142.3, Labor
								Code. Reference: Section
								142.3, Labor
								Code; and Section
								18943(c),
								Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 58 - Capacitors › Section 2534.2 - Enclosing and Guarding

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Capacitors containing more than 3 gallons of flammable liquid shall be enclosed
						in vaults or outdoor fenced enclosures.
(b) Capacitors shall be enclosed, located, or
						guarded so that persons cannot come into accidental contact or bring conducting
						materials into accidental contact with exposed energized parts, terminals, or
						buses associated with them.
EXCEPTION: No additional guarding is required for
						  enclosures accessible only to authorized and qualified persons.
(Title 24, Part 3, Section
						  460-2.)
1.
						  Editorial correction filed 11-2-83 (Register 83, No.
						  45).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code; and Section
							 18943(c),
							 Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 58 - Capacitors › Section 2534.6 - Drainage of Stored Charge

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Capacitors shall be provided with an automatic means of
						  draining the stored charge after the capacitor is disconnected from its source
						  of supply.
(a) Time of Discharge. The
						residual voltage of a capacitor shall be reduced to 50 volts or less within one
						minute after the capacitor is disconnected from the source of supply.
(b) Means of Discharge. The discharge circuit
						shall be either permanently connected to the terminals of the capacitor or
						capacitor bank, or provided with automatic means of connecting it to the
						terminals of the capacitor bank on removal of voltage from the line. Manual
						means of switching or connecting the discharge circuit shall not be
						used.
1.
						  Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
						  Amendment of section and NOTE filed 5-5-2008; operative 5-5-2008. Submitted to
						  OAL for printing only pursuant to Labor Code
						  142.3(a)(3)
						  (Register 2008, No. 19).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 58 - Capacitors › Section 2534.8 - Disconnecting Means

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
A disconnecting means shall be provided in each
						  ungrounded conductor for each capacitor bank and shall meet the following
						  requirements:
(a) The disconnecting
						means shall open all ungrounded conductors simultaneously.
(b) The disconnecting means shall be
						permitted to disconnect the capacitor from the line as a regular operating
						procedure.
(c) The rating of the
						disconnecting means shall not be less than 135 percent of the rated current of
						the capacitor.
EXCEPTION: A separate disconnecting means shall not be
						  required where a capacitor is connected on the load side of a motor
						  controller.
1.
						  Editorial correction filed 11-2-83 (Register 83, No. 45).
2.
						  Amendment of Title 24 cross reference filed 8-27-86; effective thirtieth day
						  thereafter (Register 86, No. 37).
3. Amendment of section and NOTE
						  filed 5-5-2008; operative 5-5-2008. Submitted to OAL for printing only pursuant
						  to Labor Code
						  142.3(a)(3)
						  (Register 2008, No. 19).
4. Amendment filed 4-6-2010; operative
						  5-6-2010 (Register 2010, No. 15).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 58.1 - Storage Batteries › Section 2535.1 - Storage Batteries

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Provisions shall be made for sufficient diffusion and
						  ventilation of gases from storage batteries to prevent the accumulation of
						  explosive mixtures. See General Industry Safety Orders, Section
						  5185 for additional
						  requirements.
1. New
						  article 58.1 (section
						  2535.1) and section filed 5-5-2008;
						  operative 5-5-2008. Submitted to OAL for printing only pursuant to Labor Code
						  142.3(a)(3)
						  (Register 2008, No. 19).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.1 - Scope

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Applicability.
						This Article covers the requirements for electric equipment and wiring for all
						voltages in locations that are classified depending on the properties of the
						flammable vapors, liquids or gases, or combustible dusts or fibers which may be
						present therein and the likelihood that a flammable or combustible
						concentration or quantity is present. Hazardous (classified) locations may be
						found in occupancies such as, but not limited to, the following: Aircraft
						hangers, gasoline dispensing and service stations, bulk storage plants for
						gasoline or other volatile flammable liquids, paint-finishing process plants,
						health care facilities, agricultural or other facilities where excessive
						combustible dusts may be present, marinas, boat yards, and petroleum and
						chemical processing plants. Each room, section or area shall be considered
						individually in determining its classification.
(1) These hazardous (classified) locations
						are assigned the following designations:
Class I, Division 1
Class I, Division 2
Class I, Zone 0
Class I, Zone 1
Class I, Zone 2
Class II, Division 1
Class II, Division 2
Class III, Division 1
Class III, Division 2
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.2 - General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Documentation.
						All areas designated as hazardous (classified) locations under the Class and
						Zone system and areas designated under the Class and Division system
						established after May 5, 2008 shall be properly documented. This documentation
						shall be available to those authorized to design, install, inspect, maintain,
						or operate electric equipment at the location.
(b) Intrinsically safe equipment. Equipment
						and associated wiring approved as intrinsically safe shall be permitted in any
						hazardous (classified) location for which it is approved. Intrinsically safe
						equipment and wiring shall not be capable of releasing sufficient electrical or
						thermal energy under normal or abnormal conditions to cause ignition of a
						specific hazardous atmospheric mixture in its most easily ignited
						concentration. Abnormal conditions shall include accidental damage to any
						field-installed wiring, failure of electrical components, application of
						over-voltage, adjustment and maintenance operations, and other similar
						conditions.
1.
						  Editorial correction of NOTE filed 11-2-83 (Register 83, No. 45).
2.
						  Amendment of Title 24 cross references filed 8-27-86; effective thirtieth day
						  thereafter (Register 86, No. 37).
3. Amendment of section and NOTE
						  filed 5-5-2008; operative 5-5-2008. Submitted to OAL for printing only pursuant
						  to Labor Code
						  142.3(a)(3)
						  (Register 2008, No. 19).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.3 - Electrical Installations

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Equipment, wiring methods and
						installations of equipment in hazardous (classified) locations shall be one or
						more of the following:
(1) Intrinsically
						safe.
(2) Approved for the
						hazardous (classified) location.
(3) Safe for the hazardous (classified)
						location.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.4 - Protection Techniques

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The following are acceptable protection
						techniques for electric and electronic equipment in hazardous (classified)
						locations.
(1) Explosion-proof apparatus.
						This protection technique is permitted for equipment in the Class I, Division 1
						and 2 locations for which it is approved.
(2) Dust ignition-proof. This protection
						technique is permitted for equipment in the Class II, Division 1 and 2
						locations for which it is approved.
(3) Dust-tight. This protection technique is
						permitted for equipment in the Class II, Division 2 and Class III locations for
						which it is approved.
(4) Purged
						and pressurized. This protection technique is permitted for equipment in any
						hazardous (classified) location for which it is approved.
(5) Nonincendive circuit. This protection
						technique is permitted for equipment in Class I, Division 2; Class II, Division
						2; or Class III, Division 1or 2 locations.
(6) Nonincendive equipment. This protection
						technique is permitted for equipment in Class I, Division 2; Class II, Division
						2; or Class III, Division 1 or 2 locations.
(7) Nonincendive component. This protection
						technique is permitted for equipment in Class I, Division 2; Class II, Division
						2; or Class III, Division 1 or 2 locations.
(8) Oil immersion. This protection technique
						is permitted for current-interrupting contacts in Class I, Division 2 locations
						as described in these Orders.
(9)
						Hermetically sealed. This protection technique is permitted for equipment in
						Class I, Division 2; Class II, Division 2; and Class III, Division 1 or 2
						locations.
(10) Other protection
						techniques. Any other protection technique that meets Section
						2540.3 of these Orders is
						acceptable in any hazardous (classified) location.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.6 - Aircraft Hangars

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Definition. An aircraft hangar is a location used for storage or servicing of
						aircraft in which gasoline, jet fuels, or other volatile flammable liquids or
						flammable gases are used. It shall not include locations used exclusively for
						aircraft that have never contained such liquids or gases, or that have been
						drained and properly purged.
(Title 24, Part 3, Section
						  513-1.)
(b) Classification of Locations.
(1) Below Floor Level. Any pit or depression
						below the level of the hangar floor shall be classified as a Class I, Division
						1 location that shall extend up to said floor level.
(2) Areas Not Cut Off or Ventilated. The
						entire area of the hangar, including any adjacent and communicating areas not
						suitably cut off from the hangar, shall be classified as a Class I, Division 2
						location up to a level 18 inches above the floor.
(3) Vicinity of Aircraft. The area within 5
						feet horizontally from aircraft power plants or aircraft fuel tanks shall be
						classified as a Class I, Division 2 location that shall extend upward from the
						floor to a level 5 feet above the upper surface of wings and of engine
						enclosures.
(4) Areas Suitably Cut
						Off and Ventilated. Adjacent areas in which flammable liquids or vapors are not
						likely to be released, such as stock rooms, electrical control rooms, and other
						similar locations, shall not be classified as hazardous where adequately
						ventilated and where effectively cut off from the hangar itself by walls or
						partitions.
(Title 24, Part 3, Section
						  513-2.)
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.7 - Motor Fuel Dispensing Facilities and Service Stations

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Definition.
Motor Fuel Dispensing Facilities. That portion of a
						  property where motor fuels are stored and dispensed from fixed equipment into
						  the fuel tanks of motor vehicles or marine craft or into approved containers,
						  including all equipment used in connection with it.
Other areas used as lubritoriums, service rooms, repair
						  rooms, offices, salesrooms, compressor rooms, and similar locations shall
						  comply with Sections
						  2540.2 and
						  2540.5 with respect to electric
						  wiring and equipment.
Where it can be determined that flammable liquids
						  having a flashpoint below 38°C (100°F), such as gasoline, will not be
						  handled, such a location may be classified as nonhazardous.
(Title 24, Part 3, Section
						  514.2.)
(b) Hazardous Locations. Title 24, Part 3,
						California Electrical Code, Article 514 shall be used to delineate classified
						locations for electrical installations.
(c) Circuit Disconnects. Each circuit leading
						to or through a dispensing pump, including all associated power,
						communications, data, and video circuits, and equipment for remote pumping
						systems, shall be provided with a switch or other approved means, located
						remote from dispensing devices, to disconnect simultaneously from the source of
						supply all conductors of the circuit, including the grounded neutral, if
						any.
(d) Single-pole breakers
						utilizing handle ties shall not be permitted.
(Title 24, Part 3, Section
						  514.11.)
1.
						  Editorial correction of NOTE filed 11-2-83 (Register 83, No. 45).
2.
						  Amendment of subsection (b) Title 24 cross references only filed 8-27-86;
						  effective thirtieth day thereafter (Register 86, No. 37).
3.
						  Amendment of section heading and section filed 7-6-2015; operative 10-1-2015
						  (Register 2015, No. 28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code; and Section
							 18943(c),
							 Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.8 - Bulk-Storage Plants

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Definition. Bulk Plant or Terminal. That portion of a property where flammable
						liquids are received by tank vessels, pipelines, tank car, or tank vehicle and
						are stored or blended in bulk for the purpose of distributing such liquids by
						tank vessel, pipeline, tank car, tank vehicle, portable tank, or
						container.
(b) Hazardous Locations.
						Title 24, Part 3, California Electrical Code, Article 515 shall be used to
						delineate classified locations for electrical installations.
(c) Gasoline Dispensing. Where gasoline
						dispensing is carried on in conjunction with bulk station operations, the
						applicable provisions of Sections
						2540.7 and
						2540.8 shall apply.
1.
						  Editorial correction of NOTE filed 11-2-83 (Register 83, No. 45).
2.
						  Amendment filed 8-27-86; effective thirtieth day thereafter (Register 86, No.
						  37).
3. Change without regulatory effect amending subsection
						  (b)(6)(D) filed 7-9-92 pursuant to section
						  100, title 1, California Code of
						  Regulations (Register 92, No. 28).
4. Amendment of subsections (a)
						  and (b)(6), repealer of subsections (b)(6)(A) and (b)(6)(D), subsection
						  relettering, new Figure 1, and amendment of NOTE filed 8-28-95; operative
						  9-27-95 (Register 95, No. 35).
5. Change without regulatory effect
						  providing more legible illustration filed 11-6-2008 pursuant to section
						  100, title 1, California Code of
						  Regulations (Register 2008, No. 45).
6. Amendment of subsections (a)
						  and (b), repealer of subsections (b)(1)-(7) and amendment of subsection (c)
						  filed 7-6-2015; operative 10-1-2015 (Register 2015, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code; and Section
							 18943(b),
							 Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.9 - Finishing Processes

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Definition. This section covers locations
						where paints, lacquers, or other flammable finishes are regularly or frequently
						applied by spraying, dipping, brushing, or by other means; where volatile
						flammable solvents or thinners are used; and where readily ignitable deposits
						or residues from such paints, lacquers, or finishes may occur.
(Title 24, Part 3, Section
						  516-1.)
(b) Hazardous Locations. Classification is
						with respect to the effects of an exposure to flammable vapors, and in some
						cases deposits of paint spray residue.
(1)
						Class I, Division 1 Locations. The following spaces shall be considered Class
						I, Division 1 locations.
(A) The interiors of
						spray booths and their exhaust ducts.
(B) Any space in the direct path of spray or
						any space containing dangerous quantities of air-suspended combustible residue,
						deposits, vapor or mists as a result of spraying operations more extensive than
						touch-up spraying and not conducted within spray booths.
(C) For dipping operations, all space within
						5 feet in any direction from the vapor source. The vapor source shall be the
						liquid surface in the dip tank, the wetted surface of the drain board and the
						surface of the dipped object over either the liquid surface or the wetted
						surface of the drain board and extending from these surfaces to the
						floor.
(D) Pits having an opening
						within Class I, Division 1 and Division 2 locations.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Figure - Figures

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Click
						  here to view image
Click
						  here to view image
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						  here to view image
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.10 - Wastewater Wells

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Definition.
(1) Sewage Wastewater Well (wet
						or dry types): A physical structure, usually underground, the prime function of
						which is to lift wastewater.
(2)
						Sewage Drywell: A sewage well which does not incorporate a reservoir in
						addition to the pump(s).
(3) Sewage
						Wetwell: A sewage well which incorporates a reservoir in addition to the
						pump(s).
(Title 24, Part 3, Section
						  3-512 -
						  9.)
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 59 - Hazardous (Classified) Locations › Section 2540.11 - Class I, Zone 0, 1, and 2 Locations

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Scope. Employers may use the zone
						classification system as an alternative to the division classification system
						for electric and electronic equipment and wiring for all voltages in Class I,
						Zone 0, Zone 1, and Zone 2 hazardous (classified) locations where fire or
						explosion hazards may exist due to flammable gases, vapors, or
						liquids.
(b) Location and General
						Requirements.
(1) Locations shall be
						classified depending on the properties of the flammable vapors, liquids, or
						gases that may be present and the likelihood that a flammable or combustible
						concentration or quantity is present. Where pyrophoric materials are the only
						materials used or handled, these locations need not be classified.
(2) Each room, section, or area shall be
						considered individually in determining its classification.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 60 - Oil and Gas Wells › Section 2548.21 - General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Other Orders.
						The requirements of this Section shall be deemed to be additional to, or
						amendatory of, those prescribed in Articles 1 through 59.
(b) Scope. This section shall be applicable
						to oil or gas wells located over water, on man-made islands offshore, or at
						land-based locations. Areas adjacent to oil or gas wells shall be classified as
						Class I Locations as outlined below, and installations shall comply with the
						requirements for such locations.
(c) Definitions. Adequate Ventilation. (As
						applied to enclosed areas) a mechanical ventilation system supplied from a
						nonhazardous source that provides for a minimum of 12 air changes per hour.
Enclosed Area. Roofed areas having at least three (3)
						  walls, or open sumps or pits into which highly volatile liquids are run, or
						  areas surrounded by buildings or walls in which flammable vapors may
						  accumulate.
Locomotive Cable. Cable having the physical property of
						  being oil resistant and constructed as to be suitable for application on power
						  and control circuits in diesel or electric locomotives and suitable for oil
						  rigging applications.
Positive Pressure Ventilation. A mechanical ventilation
						  system capable of providing a minimum outward air velocity of 60 feet per
						  minute through all openings.
Hazardous Location. See Section
						  5416 of the General Industry Safety
						  Orders, Title 8, CAC.
1.
						  Repealer of Article 60 (Sections
						  2541.1-2541.16) and renumbering and
						  amendment of Article 67.1 (Sections
						  2548.21-2548.26) to Article 60
						  (Sections 2548.21-2548.26) filed 2-1-83;
						  effective thirtieth day thereafter (Register 83, No. 6). For prior history, see
						  Registers 78, No. 13, and 75, No. 42.
2. Editorial correction filed
						  11-2-83 (Register 83, No. 45).
3. Editorial correction of subsection
						  (a) filed 11-3-83 (Register 83, No. 45).
4. Amendment of subsections
						  (b) and (c) filed 8-27-86; effective thirtieth day thereafter (Register 86, No.
						  37).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code; and Section
							 18943(c),
							 Health and Safety Code.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 60 - Oil and Gas Wells › Section 2548.22 - Drilling Wells

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						The following areas shall be classified as Class I, Division I Locations:
(1) Below grade well cellars, sumps or
						ditches (
see Figures 2 and 6
).
(2) Enclosed and inadequately ventilated
						areas below the derrick floor (
see Figure 1
).
(3) Enclosed areas containing mud tanks or
						shale shakers (
see Figures 3, 4, 5 and 6
).
EXCEPTION: Adequately enclosed areas shall be permitted
						  to be classified as Class I, Division 2 Locations.
California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 5 - Electrical Safety Orders › Group 1 - Low-Voltage Electrical Safety Orders › Article 60 - Oil and Gas Wells › Section 2548.23 - Producing Wells

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						The following areas shall be classified as Class I, Division I Locations:
(1) Below grade well cellars (
see
						Figures 7 and 9
).
(2)
						Enclosed areas; such as, wellhead, compressor or pump rooms where volatile
						flammable liquids or gases may be present in concentrations sufficient to
						render the area a hazardous location (
see Figures 8, 9 and
						10
).
EXCEPTION: Adequately ventilated enclosed areas shall
						  be permitted to be classified as Class I, Division 2 Locations (
see
						  Figure 7
).