CRSC · California Referenced Standards Code

What does the single- and multiple-station device standard cover?

This CRSC standard sets the minimum construction and performance rules for mechanically‑operated indoor single‑ and multiple‑station fire alarm devices (gas‑operated or spring‑wound), defines the device types, requires temperature classification labeling, and mandates test reports for listing; electrically actuated heat/smoke alarms are excluded (see **§ 12‑72‑200** and related subsections).

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Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

The single‑ and multiple‑station device standard requires a minimum set of construction and performance criteria for mechanically‑operated, indoor single‑ and multiple‑station fire alarm devices that are to be listed under this classification. The standard defines the covered device types and basic design limits (including temperature classifications), and it requires test reports and installation information to demonstrate compliance. See § 12-72-200 for scope and definitions.

The standard covers the minimum construction and performance requirements for mechanically‑operated, indoor single‑station and multiple‑station fire alarm devices and establishes definitions and temperature ratings used to determine suitable devices for a location. § 12-72-200

Requirements in detail

Scope and basic application

  • The standard applies only to devices intended for indoor installation and intended to be listed under this classification. § 12-72-200(a) .
  • The standard is written for mechanically operated single‑ and multiple‑station devices (not electrically actuated heat/ smoke devices — see exceptions below). § 12-72-200; § 12-72-201(d)

Key defined terms (first use bolded)

  • Fire alarm device, multiple station — two or more gas‑operated single station units interconnected by metal tubing to one or more remote alarm‑sounding devices. § 12-72-200(b)(1)
  • Fire alarm device, single station — a self‑contained package with a heat detector, alarm‑sounding device, and stored energy source; basic types include gas‑operated and spring‑wound units. § 12-72-200(b)(2)–(4)
  • Gas‑operated type and spring‑wound type are defined by their operating mechanisms (eutectic element + compressed gas, or bimetal/eutectic + spring clapper). § 12-72-200(b)(3)–(4)

Temperature classification and allowable ambient

Deciding which device rating to use depends on the device actuation (rating) range and the maximum ceiling temperature where it will be installed. The standard requires devices be identified for their temperature of operation and limits use by ambient ceiling temperature. § 12-72-201(e)

Temperature class Actuation (rating) range (°F) Maximum ceiling ambient (°F) Code Reference
Ordinary 135–174 100 § 12-72-201(e)
Intermediate 175–225 150 § 12-72-201(e)
Maximum rating (device) ≤ 225°F (107°C) — § 12-72-201(e)

Construction, mounting, calibration, materials

  • Devices must be constructed to be reliable and durable for intended use. § 12-72-202(a)(2)
  • Mounting: each device must provide a means to mount to a ceiling or wall and the mounting means must not distort the device so as to change its operating characteristics. § 12-72-202(b)
  • Calibration/adjustment: any calibration means must be guarded or sealed to prevent manipulation by hand or ordinary tools; thermal adjustments must not be capable of being readjusted after factory shipment. A calibration means not accessible or apparent is defined in the section. § 12-72-202(c)
  • Material, electrical spacing and other construction details are covered in the general construction sections; devices must be suitable for the intended electrical and mechanical environment. § 12-72-202(a) et seq.

Test reports and listing

  • Test reports submitted for listing must include engineering data, an analysis comparing the design to specified test sections, operating manuals, photographs, and a set‑forth of all tests and results. § 12-72-201(a)–(b)
  • The State Fire Marshal may reject devices for cause (unusual constructions may need additional tests). § 12-72-201(c)

Endurance / performance testing (relevant test procedures)

  • Endurance cycles and signal performance requirements are set in the standards test procedures (e.g., Table 12‑72‑1D shows required cycles for continuous and coded signals and relays). Use these tests when evaluating signaling performance. Table 12‑72‑1D / Standard 12‑72‑1

Exceptions & special cases

  • This CRSC standard explicitly does not cover electrically operated single‑ or multiple‑station fire alarm devices actuated by heat, smoke, or combustion products. Do not apply this mechanically‑operated standard to electrically actuated alarms. § 12-72-201(d)
  • A device with differing materials or construction may be investigated on a case‑by‑case basis and, if found substantially equivalent, may be accepted — consult the State Fire Marshal for such alternate constructions. § 12-72-201(f)
  • The State Fire Marshal may refuse listing if tests show features that impair the intended result; compliance with the written standard does not guarantee approval. § 12-72-201(c)

Common mistakes

  • Using this standard to approve electrically actuated heat or smoke alarms — the standard excludes those devices. § 12-72-201(d)
  • Installing a device whose temperature classification is inappropriate for the maximum ceiling ambient (e.g., installing an Ordinary rated device in a space with ceiling temperatures >100°F). Check § 12-72-201(e) before selection.
  • Leaving calibration adjustments accessible or re‑adjustable after shipment — calibration means must be guarded or sealed. § 12-72-202(c)
  • Mounting a device in a way that distorts its mechanisms and changes operation — the mounting method must not alter operating characteristics. § 12-72-202(b)
  • Omitting required test report materials when seeking listing (photos, operating manuals, engineering analysis). § 12-72-201(a)–(b)

Worked example — choosing a device by temperature

Scenario: a property owner is installing a mechanically‑operated single‑station alarm in a utility room where the expected maximum ceiling temperature can reach 120°F.

Step 1 — Check the ceiling ambient limit table: Ordinary devices have a maximum ceiling temperature of 100°F; Intermediate devices permit up to 150°F. § 12-72-201(e)

Step 2 — Device selection: Because the room can reach 120°F, an Intermediate temperature classification device (rating 175–225°F) must be selected — an Ordinary device would be outside its allowable ambient (100°F) and is therefore not compliant. § 12-72-201(e)

Step 3 — Verify other requirements: confirm the device is a listed mechanically‑operated single‑station unit, that mounting methods will not distort the device, and that any calibration adjustments are sealed as required. §§ 12-72-200; 12-72-202(c)(b)

Related provisions

  • § 12-72-201 — Test report contents, instructions/drawings, devices excluded, temperature classification.
  • § 12-72-202 — General construction, mounting, calibration and materials requirements for devices.
  • § 12-72-100 and Standard 12‑72‑1 — General protective signaling systems test procedures and endurance tests (Table 12‑72‑1D).
  • § 12-72-101 / § 12-72-102 — Test report / investigation and general control‑unit provisions that affect listed components and combination equipment.

Code references

Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:

  • CRSC § 12-72 High relevance — show source text

    PROTECTIVE SIGNALING SYSTEMS

    TABLE 12-72-1D—ENDURANCE TEST Col2 Col3
    NORMAL SIGNALING PERFORMANCE OF DEVICE TOTAL NUMBER OF
    CYCLES DEVICE TO BE
    TESTED    		 CYCLES PER
    MINUTE
    Continuous noncode signal for each operation of alarm signal initiating device 6,000 6
    A number of coded or noncode impulses for each operation of alarm signal initiating device 40,000 60
    Preliminary coded or noncode signal impulses followed by continuous signal impulses after
    each operation of alarm signal initiating device    		 40,000
    resetting of device after
    each group of 40 impulses    		 —
    60
    Relays 40,000 60

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    12-72-2 PROTECTIVE SIGNALING SYSTEMS

    SINGLE- AND MULTIPLE-STATION FIRE ALARM DEVICES MECHANICALLY OPERATED TYPE

    STANDARD 12-72-2

    STATE FIRE MARSHAL

    SCOPE

    Sec. 12-72-200.

    (a) Basic. This standard represents the minimum basic requirements for the construction and performance of single- and multiple-station fire alarm devices intended for indoor installation, and to be listed under this classification. The minimum design, construction and performance standards set forth herein are those deemed as minimum necessary to establish conformance to the regulations of the State Fire Marshal.

    (b) Definitions. For the purpose of this standard, the following definitions shall apply:

    1. Fire alarm device, multiple station. Two or more gas-operated single station units interconnected by metal tubing to one or more remote alarm-sounding devices.

    2. Fire alarm device, single station. A self-contained fire alarm system comprising a heat detector, an alarm- sounding device and a stored energy source incorporated in one integral package. The basic types are gas- operated units and springwound units.

    3. Gas-operated type. A device having a temperature-sensitive eutectic element; compressed gas, usually in a liquid state in a cylinder; and a sounding means, such as a horn or whistle. When the eutectic element melts, the compressed gas is released in a gaseous state through the alarm-sounding device.

    4. Spring-wound type. A device having a temperature-sensitive bimetal or eutectic element and a spring-wound type mechanism with clapper mounted within a bell housing. The snap action of the bimetal or melting of the eutectic element releases the spring mechanism resulting in a bell-type sound.

    TEST REPORTS

    Sec. 12-72-201.

    (a) Test Report contents. The report shall include engineering data, and an analysis comparing the design against Sections 1272-201(b) through 12-72-202(g); it shall include operating manuals and photographs. The report shall set forth the tests performed in accordance with this standard and the results thereof.

    (b) Instructions and drawings. A copy of the operating and installation instructions and any related drawings is to be furnished with the sample submitted for investigation to be used as a guide in the examination and test of the unit and for this purpose they need not be in final printed form.

  • CRSC § 12-72 High relevance — show source text

    (b) Definitions. For the purpose of this standard, the following definitions shall apply:

    1. Fire alarm device, multiple station. Two or more gas-operated single station units interconnected by metal tubing to one or more remote alarm-sounding devices.

    2. Fire alarm device, single station. A self-contained fire alarm system comprising a heat detector, an alarm- sounding device and a stored energy source incorporated in one integral package. The basic types are gas- operated units and springwound units.

    3. Gas-operated type. A device having a temperature-sensitive eutectic element; compressed gas, usually in a liquid state in a cylinder; and a sounding means, such as a horn or whistle. When the eutectic element melts, the compressed gas is released in a gaseous state through the alarm-sounding device.

    4. Spring-wound type. A device having a temperature-sensitive bimetal or eutectic element and a spring-wound type mechanism with clapper mounted within a bell housing. The snap action of the bimetal or melting of the eutectic element releases the spring mechanism resulting in a bell-type sound.

    TEST REPORTS

    Sec. 12-72-201.

    (a) Test Report contents. The report shall include engineering data, and an analysis comparing the design against Sections 1272-201(b) through 12-72-202(g); it shall include operating manuals and photographs. The report shall set forth the tests performed in accordance with this standard and the results thereof.

    (b) Instructions and drawings. A copy of the operating and installation instructions and any related drawings is to be furnished with the sample submitted for investigation to be used as a guide in the examination and test of the unit and for this purpose they need not be in final printed form.

    The instructions and drawings shall include such directions and information as deemed by the manufacturer to be adequate for attaining proper and safe installation, operation and maintenance.

    (c) Rejection for cause. Compliance with these standards will not necessarily mean approval and listing, if, when examined and tested, it is found to have other features which may impair the result intended by these regulations. Unusual constructions may require application of additional performance tests. The State Fire Marshal may refuse to approve any item for cause. (See the Cali- fornia Electrical Code. )

    (d) Devices covered. This standard does not cover electrically operated single- or multiple-station fire alarm devices actuated by heat, smoke or combustion products.

    (e) Temperature classification. The temperature sensitive elements of single- and multiple-station fire alarm devices are to be identified as to their temperature of operation as follows:

    TEMPERATURE CLASSIFICATION RATING RANGE,
    °F (°C)    		 MAXIMUM CEILING TEMPERATURE,
    °F (°C)
    Ordinary 135-174 (57-79) 100 (38)
    Intermediate 175-225 (79-107) 150 (66)

    The maximum rating of a fire alarm device is to be not more than 225°F (107°C).

    (f) Differing constructions. A control unit having materials or forms of construction differing from this standard may be investigated and tested according to the intent of this standard, and if found to be substantially equivalent may be given recognition for approval and listing. The office of the State Fire Marshal shall be consulted for general requirements and performance standards.

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  • CRSC § 135-174 High relevance — show source text

    The instructions and drawings shall include such directions and information as deemed by the manufacturer to be adequate for attaining proper and safe installation, operation and maintenance.

    (c) Rejection for cause. Compliance with these standards will not necessarily mean approval and listing, if, when examined and tested, it is found to have other features which may impair the result intended by these regulations. Unusual constructions may require application of additional performance tests. The State Fire Marshal may refuse to approve any item for cause. (See the Cali- fornia Electrical Code. )

    (d) Devices covered. This standard does not cover electrically operated single- or multiple-station fire alarm devices actuated by heat, smoke or combustion products.

    (e) Temperature classification. The temperature sensitive elements of single- and multiple-station fire alarm devices are to be identified as to their temperature of operation as follows:

    TEMPERATURE CLASSIFICATION RATING RANGE,
    °F (°C)    		 MAXIMUM CEILING TEMPERATURE,
    °F (°C)
    Ordinary 135-174 (57-79) 100 (38)
    Intermediate 175-225 (79-107) 150 (66)

    The maximum rating of a fire alarm device is to be not more than 225°F (107°C).

    (f) Differing constructions. A control unit having materials or forms of construction differing from this standard may be investigated and tested according to the intent of this standard, and if found to be substantially equivalent may be given recognition for approval and listing. The office of the State Fire Marshal shall be consulted for general requirements and performance standards.

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    PROTECTIVE SIGNALING SYSTEMS

    GENERAL

    Sec. 12-72-202.

    (a) Construction.

    1. Unless otherwise indicated, the term “fire alarm device” as used in this standard refers to single- and multiple-station mechanically operated type fire alarm devices.

    2. A fire alarm device shall be so constructed that it will be reliable and durable for the intended installation and use.

    (b) Mounting.

    1. A fire alarm device shall be provided with a means for mounting either to a ceiling or wall.
    2. The means for mounting shall not result in any distortion of the fire alarm device so as to alter its operating characteristics.

    (c) Calibration.

    1. Any means for calibration or adjustment shall be guarded or sealed to prevent manipulation by hand or ordinary tools. A thermal responsive element adjustment, if provided as part of a unit, shall not be capable of being readjusted after shipment from the factory.
    2. A calibration means considered to be not accessible or apparent is one not exposed to manipulation by tools, or one not readily replaceable. The complete concealment of tool-engagement means in a screw, such as a slot, recessed head, etc., by the use of solder or brazing material is considered adequate for the purpose of preventing manipulation or replacement.

    (d) Materials.

  • CRSC § 0-150 High relevance — show source text

    In no case is the wire
    to be smaller than No. 14 AWG.
    2. At fixed parts of rigidly clamped special assemblies of live parts and insulating separators (such as contact springs on relays or cam switches) that are wired at the factory, the
    spacings may be less than those indicated, but not less than1/16 inch for 0-150 volts, and not less than3/32 inch for 151-300 volts, through air and over surface, except as noted
    in the following footnotes.
    3. Nor less than 3/64 inch through air and over surface for 250 volts or less if the equipment which the component part controls does not consume more than 375 volt-amperes or
    more than 5 amperes.
    4. Not less than1/32 inch through air and over surface for a circuit involving a potential or not more than 30 volts and supplied by a primary battery or by a standard Class 2 trans-
    former or by a suitable combination of transformer and fixed impedance having output characteristics in compliance with what is required for a Class 2 transformer.
    5. The spacing through air at installation-wiring terminals may be less than1/4 inch but not less than 1/8 inch if the terminals are recessed in insulating material or have insulating
    barriers so as to confine loose strands of conductors sufficiently to make it unlikely that the terminals will be grounded or short-circuited.|

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    PROTECTIVE SIGNALING SYSTEMS

    TABLE 12-72-1D—ENDURANCE TEST Col2 Col3
    NORMAL SIGNALING PERFORMANCE OF DEVICE TOTAL NUMBER OF
    CYCLES DEVICE TO BE
    TESTED    		 CYCLES PER
    MINUTE
    Continuous noncode signal for each operation of alarm signal initiating device 6,000 6
    A number of coded or noncode impulses for each operation of alarm signal initiating device 40,000 60
    Preliminary coded or noncode signal impulses followed by continuous signal impulses after
    each operation of alarm signal initiating device    		 40,000
    resetting of device after
    each group of 40 impulses    		 —
    60
    Relays 40,000 60

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    12-72-2 PROTECTIVE SIGNALING SYSTEMS

    SINGLE- AND MULTIPLE-STATION FIRE ALARM DEVICES MECHANICALLY OPERATED TYPE

    STANDARD 12-72-2

    STATE FIRE MARSHAL

    SCOPE

    Sec. 12-72-200.

    (a) Basic. This standard represents the minimum basic requirements for the construction and performance of single- and multiple-station fire alarm devices intended for indoor installation, and to be listed under this classification. The minimum design, construction and performance standards set forth herein are those deemed as minimum necessary to establish conformance to the regulations of the State Fire Marshal.

  • CRSC § 12-72 High relevance — show source text

    purposes.

    (c) Control unit. A control unit covered by this standard consists of a unit assembly of electrical parts having provisions for the connection of power-supply circuits routed through the control unit equipment by a prescribed scheme of circuitry; signal initiating circuits extended to separate devices by which the operating parts of the control unit are actuated for signals, and to incorporated or separate devices by which the signals are transmitted or indicated to form a coordinated combination system for definite signaling service.

    TEST REPORTS

    Sec. 12-72-101.

    (a) Test report contents. The report shall include engineering data, and an analysis comparing the design against Section 12-72102 (a) through (u); it shall include wiring, diagrams, operating manuals and photographs as set forth in Section 12-72-102 (a), Items 5 and 6; it shall set forth the tests performed in accordance with Sections 12-72-103 (a) through (g) and the results thereof; and shall verify the correctness of the electrical rating required by Section 12-72-107.

    (b) Listed devices. Electrical wiring, material, devices, combination of devices, fittings, appliances and equipment which have been tested and listed by an approved listing agency for the intended purpose and use need not be individually retested.

    The report shall include the catalog number or other readily identifiable marking, the name of the approved listing agency, the laboratory test report number and date. Such individually tested and listed component parts and devices when installed in combination with other devices in a control unit or in a circuit extended from such control unit shall be subjected to the performance standard tests to determine its suitability for use in combination with other component parts, devices, circuits or equipment.

    (c) Listed control units. Control units which by their design are intended to fully comply with the Standard for the Installation, Maintenance and Use of Proprietary, Auxiliary, Remote Station and Local Protective Association may be investigated and tested in accordance with the Standards for Safety established by Underwriters’ Laboratories, Inc., U.L. 864, provided such investigation, test and report incorporates the provisions of the California Electrical Code.

    (d) Rejection for cause. Compliance with these standards will not necessarily mean approval and listing, if, when examined and tested, it is found to have other features which may impair the result intended by these regulations. Unusual constructions may require application of additional performance tests. The State Fire Marshal may refuse to approve any item for cause.

    (e) Systems only. The standard applies to protective signaling systems as defined in the California Electrical Code, and systems or systems components for which application for approval and listing has been filed under the provisions of the California Electrical Code.

    This standard does not cover manual stations, automatic detectors, automatic transmitters or other actuating devices; nor does it cover separately listed bells, registers or other indicating devices which are not provided as a part of the control unit or matched against the output of sound-reproducing equipment.

    (f) Differing constructions. A control unit having materials or forms of construction differing from this standard may be investigated and tested according to the intent of this standard, and if found to be substantially equivalent may be given recognition for approval and listing. The office of the State Fire Marshal shall be consulted for general requirements and performance standards.

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    PROTECTIVE SIGNALING SYSTEMS

    GENERAL

    Sec. 12-72-102.

    (a) **Investigation—Report.

  • CRSC § 12-72 High relevance — show source text

    |SFM|| |Chapter 12-72-2|Protective signaling systems. Single-and
    multiple-station fire alarm devices
    mechanically operated type.|SFM|| |Chapter 12-72-3|Protective signaling systems. Smoke detectors,
    combustion products type.|SFM||

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    12-1 ADMINISTRATION

    RESERVED

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    12-3 RELEASING SYSTEMS FOR SECURITY BARS IN DWELLINGS

    (This standard includes provisions of Underwriters Laboratories Subject 2326, Appendix B, dated December 17, 1999, reprinted with their permission.)

    INTRODUCTION

    SECTION 12-3-1—SCOPE

    12-3-1.1 These requirements cover releasing systems for bars, grilles, mesh, glazing or other items intended to provide security at doors and windows required for emergency escape from dwelling units. When actuated by the occupant, the system allows the obstructions over the door or window to be moved so occupants can escape in the event of an emergency.

    12-3-1.2 These requirements only cover the ability of the releasing system to be manually activated from the interior of a dwelling unit by an occupant to affect an escape through the protected opening.

    12-3-1.3 These requirements cover releasing systems intended for use on the interior side of doors or windows in all climatic locations.

    12-3-1.4 These requirements do not evaluate the ability of the releasing system or obstructions to resist an external forced entry attack.

    12-3-1.5 These requirements do not evaluate the ability of the releasing system or obstructions to be opened or removed from the exterior of the residential dwelling unit by emergency response personnel during rescue operations.

    12-3-1.6 Products covered by these requirements are intended for installation in dwelling units to protect door and window openings that are designated by the California Building Standards Code to be used as the secondary means of escape from the living area.

    12-3-1.7 Products covered by these requirements are not intended to be used to protect doors in means of egress path for nonresidential occupancies, the common egress path of multifamily residential dwelling units or the primary means of egress path in a single-family dwelling unit.

    12-3-1.8 These requirements do not cover window guards or fall prevention devices that are intended to prevent falls from upper story windows.

    12-3-1.9 These requirements do not apply to storm doors and windows or light duty screens used for insect control.

  • CRSC § 12-72 High relevance — show source text

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    12-72-1 PROTECTIVE SIGNALING SYSTEMS

    STANDARD TEST PROCEDURES

    STANDARD 12-72-1

    STATE FIRE MARSHAL

    SCOPE

    Sec. 12-72-100.

    (a) Basic. This standard represents the minimum basic requirements for the construction and performance of the protective signaling systems to be listed under this classification. The minimum design, construction and performance standards set forth herein are those deemed as minimum necessary to establish conformance to the regulations of the State Fire Marshal as set forth in the California Electrical Code, and when applicable shall be reported on in their entirety by the approved testing laboratory.

    (b) Systems. This standard covers electrically operated devices and control units designed to transmit and sound alarms, supervisory and trouble signals to be employed in ordinary indoor locations in accordance with the Standards of the National Fire Protection Association for the Installation, Maintenance and Use of Proprietary, Auxiliary and Local Protective Signaling Systems, Remote Station, Nos. 72A, 72B, 72C and 72D, and the California Electrical Code. This includes combination protective signaling systems employing nonsupervised sounding circuits; combination fire alarm-communication, -program and -clock systems (hereinafter referred to as combination signaling systems); and audible devices used for both alarm and program or communication

    purposes.

    (c) Control unit. A control unit covered by this standard consists of a unit assembly of electrical parts having provisions for the connection of power-supply circuits routed through the control unit equipment by a prescribed scheme of circuitry; signal initiating circuits extended to separate devices by which the operating parts of the control unit are actuated for signals, and to incorporated or separate devices by which the signals are transmitted or indicated to form a coordinated combination system for definite signaling service.

    TEST REPORTS

    Sec. 12-72-101.

    (a) Test report contents. The report shall include engineering data, and an analysis comparing the design against Section 12-72102 (a) through (u); it shall include wiring, diagrams, operating manuals and photographs as set forth in Section 12-72-102 (a), Items 5 and 6; it shall set forth the tests performed in accordance with Sections 12-72-103 (a) through (g) and the results thereof; and shall verify the correctness of the electrical rating required by Section 12-72-107.

    (b) Listed devices. Electrical wiring, material, devices, combination of devices, fittings, appliances and equipment which have been tested and listed by an approved listing agency for the intended purpose and use need not be individually retested.

    The report shall include the catalog number or other readily identifiable marking, the name of the approved listing agency, the laboratory test report number and date. Such individually tested and listed component parts and devices when installed in combination with other devices in a control unit or in a circuit extended from such control unit shall be subjected to the performance standard tests to determine its suitability for use in combination with other component parts, devices, circuits or equipment.

  • CRSC § 03-25 Medium relevance — show source text

    062000 Page 4 of 26 Rev. #25: 03-25-22

    UG-1: Enclosures Greenbook Primary Electric Underground Enclosures

    Notes

    1. Existing 3’ x 5’ (#5) enclosure with minimum 36” depth will continue to be allowed when:

    A. Replacing existing 200-Amp splice junction, and equipment.

    B. Converting existing 200-Amp splices to a 200-Amp junction.

    1. When intercepting existing 200-Amp primary cable to install 200-Amp equipment, the installation of a 3’ x 5’ (#5) enclosure will only be allowed if there is no physical space for the installation of a 4’ x 6’ 6” (#6) enclosure and all other design alternatives have been exhausted. However, installation of 167 kVA single phase transformers requires a 4’ x 6’ 6” (#6) enclosure.

    2. The installation of new 200-Amp junction and equipment is not allowed in new 3’ x 5’ (#5) primary enclosure for new PG&E job estimates or Applicant Design (AD) estimates.

    Rev. #25: 03-25-22 062000 Page 5 of 26

    UG-1: Enclosures Greenbook Primary Electric Underground Enclosures

    3’ 0” x 5’ 0” (#5) Complete Enclosure Assemblies (incidental transformer cover shown)

    Figure 1 Isometric View of 3’ x 5’ Enclosure Assembly (not to scale)

    Table 2 Complete Enclosure Assembly (for 200-Amp distribution)

    Application Enclosure Size Type of Traffic Loading Type of Cover 2 Code 1
    Splice Box 3’ x 5’ x 3’ 6” Incidental Quick-Release
    Aluminum    		 025601
    Splice Box 3’ x 5’ x 3’ 6” Full-Traffic Quick-Release
    Steel    		 041668
    Splice Box 3’ x 5’ x 4’ 6” Heavy Full-Traffic Concrete 041612
    Splice Box 3’ x 5’ x 4’ 6” Incidental Quick-Release
    Aluminum    		 040334
    Splice Box 3’ x 5’ x 4’ 6” Full-Traffic Quick-Release
    Steel    		 041669
    Splice Box 3’ x 5’ x 5’ 6” Heavy Full-Traffic Concrete 040327

    1 Code includes body, frame, and cover assembly. The heavy full-traffic assembly also includes a 12” extension. When extra depth is required, order additional extension from Table 3 on Page 7. 2 Transformer covers for 3’ x 5’ (#5) boxes are not available for new construction. Replacement cover material can be found in Document 066205.

    062000 Page 6 of 26 Rev. #25: 03-25-22

    UG-1: Enclosures Greenbook Primary Electric Underground Enclosures

  • CRSC § 907.6.5 Medium relevance — show source text

    The system shall have the capability to activate all other notification zones by automatic and manual means._ 5. Upon approval by the fire code official in buildings which are sprinklered throughout, specific notification zoning shall be permitted where the activated initiating device or fire extinguishing system is separated from any nonactive notification zones by a minimum of 300-ft horizontal distance. The system shall have the capability to activate all other notification zones by automatic and manual means. 6. Where a Group H or L occupancy is located above the 10th story, each side of the 2-hour fire-smoke barrier shall be considered a separate zone.

    [F] 907.6.5 Access. Access shall be provided to each fire alarm device and notification appliance for periodic inspection, maintenance and testing.

    [F] 907.6.6 Monitoring. Fire alarm systems required by this chapter or by the California Fire Code shall be monitored by an approved supervising station in accordance with NFPA 72 and this section .

    Exception: Monitoring by a supervising station is not required for:

    1. Single- and multiple-station smoke alarms required by Section 907.2.11.
    2. Smoke detectors in Group I-3 occupancies shall be monitored in accordance with Section 907.2.6.3.
    3. Automatic sprinkler systems in one- and two-family dwellings.

    [F] 907.6.6.1 Transmission of alarm signals. Transmission of alarm signals to a supervising station shall be in accordance with NFPA 72.

    [F] 907.6.6.2 MIY Monitoring. Direct transmission of alarms associated with monitor it yourself (MIY) transmitters to a public safety answering point (PSAP) shall not be permitted unless approved by the fire code official.

    [F] 907.6.6.3 Termination of monitoring service. Termination of fire alarm monitoring services shall be in accordance with Section 901.9 of the California Fire Code .

    907.6.6.4 Group E schools. Automatic fire alarm systems shall be monitored and shall transmit the alarm, supervisory and trou- ble signals to an approved supervising station in accordance with NFPA 72. The supervising station shall be listed as either UUFX (Central Station) or UUJS (remote & proprietary) by the Underwriters Laboratory Inc. (UL) or other approved listing and testing laboratory or shall comply with the requirements of standard, FM 3011. Termination of monitoring services shall be in accordance with Section 907.6.6.3.

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    [F] 907.7 Acceptance tests and completion. Upon completion of the installation, the fire alarm system and all fire alarm components shall be tested in accordance with NFPA 72.

    [F] 907.7.1 Single- and multiple-station alarm devices. When the installation of the alarm devices is complete, each device and interconnecting wiring for multiple-station alarm devices shall be tested in accordance with the smoke alarm provisions of NFPA 72.

    [F] 907.7.2 Record of completion. A record of completion in accordance with NFPA 72 verifying that the system has been installed and tested in accordance with the approved plans and specifications shall be provided.

  • CRSC § 907.6.5 Medium relevance — show source text

    5. Upon approval by the fire code official in buildings which are sprinklered throughout, specific notification zoning shall be permitted where the activated initiating device or fire extinguishing system is separated from any nonactive notifi- cation zones by a minimum of 300-foot horizontal distance. The system shall have the capability to activate all other notification zones by automatic and manual means. 6. Where a Group H or L occupancy is located above the 10th story, each side of the 2-hour fire-smoke barrier shall be considered a separate zone.

    907.6.5 Access. Access shall be provided to each fire alarm device and notification appliance for periodic inspection, maintenance and testing.

    907.6.6 Monitoring. Fire alarm systems required by this chapter or by the California Building Code shall be monitored by an approved supervising station in accordance with NFPA 72 and this section.

    Exception: Monitoring by a supervising station is not required for:

    1. Single- and multiple-station smoke alarms required by Section 907.2.11.
    2. Smoke detectors in Group I-3 occupancies shall be monitored in accordance with Section 907.2.6.3.
    3. Automatic sprinkler systems in one- and two-family dwellings.

    907.6.6.1 Transmission of alarm signals. Transmission of alarm signals to a supervising station shall be in accordance with NFPA 72.

    907.6.6.2 MIY monitoring. Direct transmission of alarms associated with monitor it yourself (MIY) transmitters to a public safety answering point (PSAP) shall not be permitted unless approved by the fire code official.

    907.6.6.3 Termination of monitoring service. Termination of fire alarm monitoring services shall be in accordance with Section 901.9.

    907.6.6.4 Group E schools. Automatic fire alarm systems shall be monitored and shall transmit the alarm, supervisory and trou- ble signals to an approved supervising station in accordance with NFPA 72. The supervising station shall be listed as either UUFX (Central Station) or UUJS (remote & proprietary) by the Underwriters Laboratory Inc. (UL) or other approved listing and testing laboratory or shall comply with the requirements of FM 3011. Termination of monitoring services shall be in accordance with Section 907.6.6.3.

    907.7 Acceptance tests and completion. Upon completion of the installation, the fire alarm system and all fire alarm components shall be tested in accordance with NFPA 72.

    907.7.1 Single- and multiple-station alarm devices. When the installation of the alarm devices is complete, each device and interconnecting wiring for multiple-station alarm devices shall be tested in accordance with the smoke alarm provisions of NFPA 72.

    907.7.2 Record of completion. A record of completion in accordance with NFPA 72 verifying that the system has been installed and tested in accordance with the approved plans and specifications shall be provided.

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    907.7.3 Instructions. Operating, testing and maintenance instructions and record drawings (“as builts”) and equipment specifications shall be provided at an approved location.

  • CEC § 2022 Medium relevance — show source text

    1. All disconnect devices must have locking provisions that accept a PG&E padlock with a 5/16-inch lock shaft. Keyed locks are not allowed. If the disconnect device is operable without opening the enclosure, the operating handle must be lockable. If the enclosure must be opened to operate the disconnect device, the enclosure must be lockable.

    2. Molded case circuit breakers, pull-out type disconnects, or any other similar device are not acceptable as an approved disconnect switch.

    3. For applications not described, contact the PG&E Electric Generation Interconnection (EGI) department.

    4. Interconnections in any PG&E sealable compartment are NOT allowed without written authorization from the Electric Meter Engineering or Electric Distribution Standards departments. For any questions, contact PG&E’s EGI department.

    Rev. #07: 3/25/2022 060559 Page 1 of 7

    Greenbook

    Disconnect Switch Requirements for Distributed Generation Customers

    Disconnect Switch Requirements

    Basic

    As specified and in Electric Rule 21, “Generating Facility Interconnections,” and in PG&E’s Distribution Interconnection Handbook, the generating system or facility must have an ac disconnect switch. The device must meet all of the PG&E requirements, as specified in this document.

    All disconnect switches must conform to nationally recognized standards and meet all applicable certification requirements. These include, but are not limited to: NFPA 70−National Electrical Code (NEC), California Electrical Code (CEC), Underwriters Laboratories (UL), or other Nationally Recognized Testing Laboratory (NRTL).

    PG&E-approved disconnect switch models, rated up to 1200 amps, currently listed in both the Eaton and Siemens Safety Switch Cross-Reference Guides, meet all of the functional requirements described below. These guides can be found on PG&E’s Distribution Interconnection Handbook website at http://www.pge.com/dih/. Disconnect switches rated over 1200 amps and up to 4000 amps must meet all of the requirements described in this document.

    Functional

    • Manually operated: Operated by a person and not operated electronically.

    • Gang-operated: One switch handle opens and closes all phases simultaneously.

    • Includes marking or signage on the switch that clearly indicates the open (off) and closed (on) positions.

    • Lockable in the open (off) position using a PG&E padlock.

    • Allows visible verification that an air-gap of separation has occurred between the blades and contact points.

    • Has a viewing window, for visible verification, on all pad−mounted (floor standing) disconnect switches. A viewing window is not required, but allowed, on all wall−mounted disconnect switches.

    • A fusible ac disconnect switch is required for generators that do not have over-current protection (i.e., breakers, fuses) at the point of interconnection with the utility.

    • Adequately sized to handle fault and overcurrent conditions.

    Labeling

    • Permanently attached signage on the front that explains this is the ac disconnect switch for the generation. Example: “UTILITY AC DISCONNECT SWITCH”.

    • Labels shall be permanent and suitable for the environment and shall be engraved phenolic or comply with ANSI Z535.4. Lettering shall be a minimum 3/8” high and in all capitals.

    • When the disconnect switch is not grouped with the meter panel provide a map showing the location.

  • CRSC § 1009.12 Medium relevance — show source text

    Emergency exit and panic hardware.
    |SFM|Part 9, Section 1009.12| |Chapter 12-11A,
    12-11B|Detectable warning products and directional
    surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
    11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
    Part 6, Section 110.8
    Part 9, Section 720, Table 721.1(1)
    Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
    automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
    Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
    actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
    Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
    Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems. Single-and
    multiple-station fire alarm devices
    mechanically operated type.|SFM|| |Chapter 12-72-3|Protective signaling systems. Smoke detectors,
    combustion products type.|SFM||

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    12-1 ADMINISTRATION

    RESERVED

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    12-3 RELEASING SYSTEMS FOR SECURITY BARS IN DWELLINGS

    (This standard includes provisions of Underwriters Laboratories Subject 2326, Appendix B, dated December 17, 1999, reprinted with their permission.)

    INTRODUCTION

    SECTION 12-3-1—SCOPE

    12-3-1.1 These requirements cover releasing systems for bars, grilles, mesh, glazing or other items intended to provide security at doors and windows required for emergency escape from dwelling units. When actuated by the occupant, the system allows the obstructions over the door or window to be moved so occupants can escape in the event of an emergency.

Frequently asked questions

What does “single‑station” mean in this standard?

A single‑station device is a self‑contained package that includes a heat detector, an alarm‑sounding device, and a stored energy source; the standard defines the basic gas‑operated and spring‑wound types. § 12-72-200(b)(2)–(4)

Can I use this standard for electrically‑operated smoke alarms?

No. This standard does not cover electrically operated single‑ or multiple‑station devices actuated by heat, smoke or combustion products — those are excluded. § 12-72-201(d)

How do I pick the right temperature class?

Match the device’s actuation rating range and the maximum ceiling ambient from the temperature classification table: Ordinary (135–174°F; max ceiling 100°F) or Intermediate (175–225°F; max ceiling 150°F). § 12-72-201(e)

What must be in the test report for listing?

Reports must include engineering data, an analysis against the referenced test sections, operating and installation instructions, drawings, photographs and the tests performed with results. § 12-72-201(a)–(b)

Are non‑standard constructions ever allowed?

Yes — differing constructions may be evaluated and, if found substantially equivalent, accepted; consult the State Fire Marshal. § 12-72-201(f)

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What are the temperature classifications and oven/fire-test methods for mechanical devices?

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Single- and multiple‑station mechanically operated devices

California Referenced Standards Code