CPC · California Plumbing Code

Common general definitions (A–G)

This page orients readers to the A–G entries in Chapter 2 (Definitions) of the California Plumbing Code and explains why and where those definitions matter in applying the CPC.

Last reviewed: July 6, 2026

Overview

This hub covers the A–G portion of the California Plumbing Code’s definitions (Chapter 2). Chapter 2 sets the standardized terms the CPC uses so the same word means the same thing wherever it appears in the code, which reduces ambiguity in design, inspection and enforcement .

Clear definitions matter because they change how requirements are applied — the CPC’s purpose and scope explain that consistent terminology supports public health, safety and enforceability (see §1.1.1 Title and §1.1.2 Purpose) . Definitions in Chapter 2 are organized alphabetically and broken into letter-group sections (the code uses numbered headings for letter ranges, e.g., §213.0 for “K” and §214.0 for “L”) so the A–G hub is the orienting index for every A–G entry you’ll consult in the body of the code . For quick context on where definitions live in the CPC and related chapters, see the code table of contents and chapter summaries (Ch. 1–3) .

In this section

Code references

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

  • CPC § 0.249 Medium relevance — show source text

    24
    |0.249
    |0.048
    |–
    | |4.94|0.326|0.063|–| |5.65|0.413|0.080|–| |6.36|0.507|0.098|–| |7.06|0.611|0.118|0.030| |7.77|0.723|0.139|0.035| |8.47|0.843|0.162|0.041| |9.18|0.969|0.187|0.047| |9.89|1.108|0.212|0.053| |10.59|1.252|0.240|0.060| |12.36|1.647|0.315|0.079| |14.12
    |2.090
    |0.398
    |0.100
    | |15.89
    |2.580
    |0.490
    |0.123
    | |17.66|3.116|0.591|0.148| |19.42|–|0.701|0.176| |21.19|–|0.818|0.205| |22.95|–|0.944|0.236| |24.72|–|1.078|0.268| |28.25|–|1.369|0.341| |31.78|–|1.690|0.421| |35.31|–|2.043|0.509| |38.84|–|2.425|0.603| |42.37|–|2.838|0.705| |45.90
    |–
    |3.280
    |0.814
    | |49.43|–|3.751|0.929| |52.97|–|4.249|1.052| |56.50|–|–|1.181| |60.03|–|–|1.318| |63.56|–|–|1.461| |67.09|–|–|1.611| |70.62|–|–|1.768| |81.21|–|–|2.276| |88.28|–|–|2.647| |95.34|–|–|3.044|

    FLOW RATE
    (SCFM)1
    PRESSURE DROP (psi) PER 100 FEET2 Col3 Col4
    FLOW RATE
    (SCFM)1
    1⁄2 INCH PIPE 3⁄4 INCH PIPE 1 INCH PIPE
    5.30 0.126 0.024
    10.59 0.430 0.082
    15.89 0.886 0.168
    21.19 1.485 0.281
    26.48 2.220 0.419
    31.78 3.089 0.581
    37.08 4.087 0.766
    42.37 0.975
    47.67 1.206
    52.97 1.460 0.361
    58.26 1.736 0.429
    63.56 2.033 0.502
    68.85 2.
  • CPC § 2.25 Medium relevance — show source text

    00|2.25|0.70|DR|3.70|1.05|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|33 mil cold-
    formed steel
    stud|#10 screw|Steel thick-
    ness plus 3
    threads|16|3.85|1.45|DR|DR|3.40|DR|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|33 mil cold-
    formed steel
    stud|#10 screw|Steel thick-
    ness plus 3
    threads|24|3.40|DR|DR|DR|2.70|DR|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|43 mil or
    thicker cold-
    formed steel
    stud|#8 Screw|Steel thick-
    ness plus 3
    threads|12|3.00|1.80|DR|DR|3.00|0.65|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|43 mil or
    thicker cold-
    formed steel
    stud|#8 Screw|Steel thick-
    ness plus 3
    threads|16|3.00|1.00|DR|DR|2.85|DR|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|43 mil or
    thicker cold-
    formed steel
    stud|#8 Screw|Steel thick-
    ness plus 3
    threads|24|2.85|DR|DR|DR|2.20|DR|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|43 mil or
    thicker cold-
    formed steel
    stud|#10 screw|Steel thick-
    ness plus 3
    threads|12|4.00|3.85|2.80|1.80|4.00|3.05|1.50|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|43 mil or
    thicker cold-
    formed steel
    stud|#10 screw|Steel thick-
    ness plus 3
    threads|16|4.00|3.30|1.95|0.60|4.00|2.25|DR|DR| |Minimum 33
    mil steel
    furring or
    minimum
    1x wood
    furringc|43 mil or
    thicker cold-
    formed steel
    stud|#10 screw|Steel thick-
    ness plus 3
    threads|24|4.00|2.25|DR|DR|4.00|0.65|DR|DR| |For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa, 1 pound per square inch = 0.00689 MPa.
    DR = Design Required, o.c. = on center.
    a. Wood furring shall be spruce-pine-fir or any softwood species with a specific gravity of 0.42 or greater.

  • CPC § 4.1 Medium relevance — show source text
    • 100°F
      (16°C-38°C)|1 h|6 h|2 h|12 h|6 h|24 h| |40°F-60°F
      (4°C-16°C)|2 h|12 h|4 h|24 h|12 h|48 h| |10°F- 40°F
      (-12°C+4°C)|8 h|48 h|16 h|96 h|48 h|8 days| |*If gaps or loose fits are encountered in the system, double these cure times.|*If gaps or loose fits are encountered in the system, double these cure times.|*If gaps or loose fits are encountered in the system, double these cure times.|*If gaps or loose fits are encountered in the system, double these cure times.|*If gaps or loose fits are encountered in the system, double these cure times.|*If gaps or loose fits are encountered in the system, double these cure times.|*If gaps or loose fits are encountered in the system, double these cure times.|

    2025 CALIFORNIA PLUMBING CODE 467

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    IS 33

    FIGURE 1

    LOCATION OF THRUST BLOCKS (STANDARD AND METRIC COMBINED) A COMPARISON OF THRUST-BLOCK AREAS (See Section 4.1)

    468 2025 CALIFORNIA PLUMBING CODE

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    IS 33

    FIGURE 2

    THRUST BLOCK BEARING AREA (See Section 5.2.2)

    2025 CALIFORNIA PLUMBING CODE 469

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    IS 33

    Uniform Plumbing Code References for Ductile Iron and PVC Pressure Building Supply and Exterior Cold-Water Piping

    The following sections of the 2024 Uniform Plumbing Code apply to ductile iron and PVC pressure building supply and exterior cold-water piping.

    Chapter 3 General Regulations

    309.0 Workmanship

    312.0 Protection of Piping, Materials, and Struc tures

    313.0 Hangers, Supports, and Anchors

    314.0 Trenching, Excavation, and Backfill

    Chapter 6 Water Supply and Distribution

    604.0 Materials (water piping)

    Table 604.1 Materials for Building Supply and Water Distribution Piping and Fittings

    605.4 Ductile Iron Pipe and Joints

    605.12 PVC Plastic Pipe and Joints

    605.16.2 Plastic Pipe to Other Materials

    609.0 Installation, Testing, Unions, and Location

    Abbreviations

    IAPMO International Association of Plumbing and Mechanical Officials

    UPC Uniform Plumbing Code published by IAPMO

    AWWA American Water Works Association

    CSA Canadian Standards Association

    Applicable Standards.

    ASME B16.4 Gray Iron Threaded Fittings Classes 125 and 250

    ASTM D1785 Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120

    ASTM D2241 Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)

  • CPC § 11.0 Medium relevance — show source text

    11.0 - 1.11.11_|||X|||||||||||||||||||||| |1.13.0||||||||||||||||||||X||||| |Division II - Scope and
    Administration||||||||||||||||||||||||| |101.0||||||||||X|X|X||X|X|||||||||| |102.0||||||||||X|X|X||X|X|||||||||| |103.0||||||||||X|X|X||X|X|||||||||| |104.2 Items 1 & 2||||X|X|||||||||||||||||||| |104.3.1||||||||||X|X|X||X|X|||||||||| |104.4.3.1|X|||||||||||||||||||||||| |105.0||||||||||X|X|X||X|X||||||||||

    This state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.0.

    2 2025 CALIFORNIA PLUMBING CODE

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    CHAPTER 1

    ADMINISTRATION

    DIVISION I

    CALIFORNIA ADMINISTRATION

    1.1.0 General.

    1.1.1 Title. These regulations shall be known as the Califor- nia Plumbing Code, may be cited as such and will be referred to herein as “this code.” The California Plumbing Code is Part 5 of thirteen parts of the official compilation and publi- cation of the adoption, amendment, and repeal of plumbing regulations to the California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part incorporates by adoption the 2024 Uniform Plumb- ing Code of the International Association of Plumbing and Mechanical Officials with necessary California amendments.

    1.1.2 Purpose. The purpose of this code is to establish the minimum requirements to safeguard the public health, safety and general welfare through structural strength, means of egress facilities, stability, access to persons with disabilities, sanitation, adequate lighting and ventilation, and energy con- servation; safety to life and property from fire and other haz- ards attributed to the built environment; and to provide safety to fire fighters and emergency responders during emergency operations.

    1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replace- ment, repair, equipment, use and occupancy, location, main- tenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.

  • CPC § 2025 Medium relevance — show source text

    Gas Piping| |13|Health Care Facilities and Medical Gas and Medical Vacuum Systems| |14|Firestop Protection| |15|Alternate Water Sources for Nonpotable Applications| |16|Nonpotable Rainwater Catchment Systems| |17|Referenced Standards| |Appendix A|Recommended Rules for Sizing the Water Supply System| |Appendix B|Explanatory Notes on Combination Waste and Vent Systems| |Appendix C|Alternate Plumbing Systems| |Appendix D|Sizing Storm Water Drainage Systems| |Appendix E|Manufactured/Mobile Home Parks and Recreational Vehicle Parks| |Appendix F|Firefighter Breathing Air Replenishment Systems| |Appendix G|Sizing of Venting Systems| |Appendix H|Private Sewage Disposal Systems| |Appendix I|Installation Standards| |Appendix J|Combination of Indoor and Outdoor Combustion and Ventilation Opening Design| |Appendix K|Potable Rainwater Catchment Systems| |Appendix L|Sustainable Practices| |Appendix M|Peak Water Demand Calculator| |Appendix N|Impact of Water Temperature on the Potential for Scalding and Legionella Growth| |Appendix O|Non-Sewered Sanitation Systems| |Appendix P|Professional Qualifications| |Appendix Q|Indoor Horticultural Facilities| |Appendix R|Tiny Houses| |Appendix S|Onsite Stormwater Treatment Systems|

    2025 CALIFORNIA PLUMBING CODE xiii

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    FORMAT OF THE UNIFORM PLUMBING CODE

    The following is a summary of the scope and intent of the provisions addressed within the chapters and appendices of the Uniform Plumbing Code :

    Chapter 1 Administration.

    Chapter 1 regulates the application, enforcement, and administration of subsequent requirements of the code. As well as establishing the scope of the code, this chapter is concerned with enforcing the requirements contained in the body of the code. A plumbing code, as with any other code, is intended to be adopted as a legally enforceable document to safeguard health, safety, property, and public welfare. The code cannot be effective without satisfactory provisions for its administration and enforcement. The Authority Having Jurisdiction is to review the proposed and completed work and to decide whether a plumbing system conforms to the code requirements. As a public servant, the Authority Having Jurisdiction enforces the code in an unbiased, proper manner. The design professional is responsible for the design of a safe plumbing system. The contractor is responsible for installing the system in accordance with the plans.

    Chapter 2 Definitions.

    To maintain consistency and encourage the use of common terminology, Chapter 2 establishes definitions to provide clarity of terms and promote the use of a common language throughout the code. Understanding definitions within the context of their application enables greater collaboration, efficiency, standardization, and interpretation in applying and enforcing terms used throughout the code. Codes are technical documents, and every term can impact the meaning of the code text. Terms not defined have a normally accepted meaning.

    Chapter 3 General Regulations.

    Chapter 3 regulates the general requirements, not specific to other chapters, for installing plumbing systems. Many regulations are not specific plumbing requirements but relate to the overall plumbing system. This chapter contains safety requirements for installing plumbing and also contains nonplumbing requirements for identifying pipes, pipe fittings, traps, fixtures, materials, and devices used in plumbing systems.

  • CPC § 6.10 Medium relevance — show source text

    84|6.10|6.30|6.61|6.84|7.00| |45|75|30|5.75|6.00|6.19|6.47|6.68|6.83| |44|75|31|5.67|5.91|6.08|6.34|6.53|6.67| |43|75|32|5.59|5.82|5.99|6.23|6.39|6.52| |42|75|33|5.51|5.74|5.90|6.12|6.27|6.39| |41|75|34|5.43|5.66|5.81|6.02|6.16|6.26| |46|80|34|5.43|5.66|5.81|6.02|6.16|6.26| |40|75|35|5.35|5.58|5.73|5.93|6.06|6.15| |45|80|35|5.35|5.58|5.73|5.93|6.06|6.15| |44|80|36|5.26|5.50|5.65|5.84|5.96|6.05| |43|80|37|5.16|5.42|5.57|5.76|5.87|5.96| |42|80|38|5.06|5.33|5.49|5.67|5.79|5.87| |41|80|39|4.95|5.24|5.41|5.60|5.71|5.78| |46|85|39|4.95|5.24|5.41|5.60|5.71|5.78| |40|80|40|4.83|5.14|5.32|5.52|5.63|5.70| |45|85|40|4.83|5.14|5.32|5.52|5.63|5.70| |44|85|41|4.69|5.04|5.253|5.43|5.55|5.62| |43|85|42|4.55|4.93|5.13|5.35|5.47|5.54| |42|85|43|4.38|4.80|5.03|5.26|5.38|5.46| |41|85|44|4.21|4.67|4.91|5.17|5.30|5.38| |40|85|45|4.01|4.52|4.79|5.06|5.20|5.29| |Condenser DT2|Condenser DT2|Condenser DT2|14.04|11.23|9.36|7.02|5.62|4.68| |1. LIFT = Entering Condenser Water Temperature (°F) – Leaving Chilled Water Temperature (°F)
    2.

  • CPC § 6.44 Medium relevance — show source text

    17|6.44|6.66|6.99|7.23|7.40| |45|75|30|6.08|6.34|6.54|6.84|7.06|7.22| |44|75|31|6.00|6.24|6.43|6.71|6.90|7.05| |43|75|32|5.91|6.15|6.33|6.58|6.76|6.89| |42|75|33|5.83|6.07|6.23|6.47|6.63|6.75| |41|75|34|5.74|5.98|6.14|6.36|6.51|6.62| |46|80|34|5.74|5.98|6.14|6.36|6.51|6.62| |40|75|35|5.65|5.90|6.05|6.26|6.40|6.51| |45|80|35|5.65|5.90|6.05|6.26|6.40|6.51| |44|80|36|5.56|5.81|5.97|6.17|6.30|6.40| |43|80|37|5.46|5.73|5.89|6.08|6.21|6.30| |42|80|38|5.35|5.64|5.80|6.00|6.12|6.20| |41|80|39|5.23|5.54|5.71|5.91|6.03|6.11| |46|85|39|5.23|5.54|5.71|5.91|6.03|6.11| |40|80|40|5.10|5.44|5.62|5.83|5.95|6.03| |45|85|40|5.10|5.44|5.62|5.83|5.95|6.03| |44|85|41|4.96|5.33|5.55|5.74|5.86|5.94| |43|85|42|4.81|5.21|5.42|5.66|5.78|5.86| |42|85|43|4.63|5.08|5.31|5.56|5.69|5.77| |41|85|44|4.45|4.93|5.19|5.46|5.60|5.69| |40|85|45|4.24|4.77|5.06|5.35|5.50|5.59| |Condenser DT2|Condenser DT2|Condenser DT2|14.04|11.23|9.36|7.02|5.62|4.68| |1. LIFT = Entering Condenser Water Temperature (°F) – Leaving Chilled Water Temperature (°F)
    2.

  • CPC § 1303.4.2 Medium relevance — show source text

    steamer.

    1303.4.2 Vapor Vents and Stacks. Where a sterilizer or bedpan steamer has provision for a vapor vent and such a vent is required by the manufacturer, the vent shall be extended to the outdoors above the roof. Sterilizer and bedpan steamer vapor vents shall be installed in accordance with the manufacturer’s installation instructions and shall not be connected to a drainage system vent.

    1303.5 Aspirators. Provisions for aspirators or other watersupplied suction devices shall be installed with the specific approval of the Authority Having Jurisdiction. Where aspirators are used for removing body fluids, they shall include a collection container to collect liquids and solid particles. Aspirators shall indirectly discharge to the sanitary drainage system through an air gap in accordance with Section 806.1. The potable water supply to an aspirator shall be protected by a vacuum breaker or equivalent backflow protection device in accordance with Section 603.5.9.

    1303.6 Drains. Drains shall be installed on dryers, aftercoolers, separators, and receivers.

    1303.7 Clinical Sinks. Clinical sinks shall be installed in

    accordance with the manufacturer’s installation instructions

    and shall comply with Section 1303.7.1.

    1303.7.1 Drainage Connection. Clinical sinks shall be directly connected to the sanitary drainage system and shall be provided with approved flushing devices installed in accordance with Section 413.1.

    1303.8 Water Supply for Hospitals. Hospitals shall be provided with not less than two approved potable water sources that are installed in such a manner as to prevent the interruption of water service.

    1303.9 Work Performed in Occupied Healthcare Facilities. In existing, occupied, inpatient healthcare facilities, all plumbing systems installation and remodel work shall be performed by personnel certified in accordance with ASSE/IAPMO/ANSI 12010.

    1304.0 Medical Gas and Medical Vacuum Piping Sys- tems.

    1304.1 General. The installation of medical gas and medical vacuum piping systems shall comply with the requirements of this chapter. 1304.1.1 [OSHPD 1, 1R, 2, 3, 4 & 5] Medical gas sys- tems for health care facilities that are regulated by OSHPD (hospitals, skilled nursing facilities, and intermediate care facilities, licensed clinics, and correctional treatment cen- ters) shall be in accordance with NFPA 99, Standard for Health Care Facilities. See California Fire Code Refer- enced Standards (Chapter 80) for applicable version of the Standard. See California Building Code Table 1224.4.6.1 for location and number of station outlets for oxygen, vac- uum, and medical air.

  • CPC § 0.099 Medium relevance — show source text
    c, d, e Col2 Col3 Col4 Col5 Col6
    MAXIMUM DESIGN
    PRESSURE
    (+ or - psf)
    MINIMUM
    PANEL SPAN
    RATING
    MINIMUM PANEL
    PERFORMANCE
    CATEGORY
    NAIL TYPE
    AND SIZE
    FASTENERa SPACINGe ALONG
    EDGES AND INTERMEDIATE SUPPORTS
    (inches)
    FASTENERa SPACINGe ALONG
    EDGES AND INTERMEDIATE SUPPORTS
    (inches)
    MAXIMUM DESIGN
    PRESSURE
    (+ or - psf)
    MINIMUM
    PANEL SPAN
    RATING
    MINIMUM PANEL
    PERFORMANCE
    CATEGORY
    NAIL TYPE
    AND SIZE
    Galvanized Steel Stainless Steel
    30 24/0 3/8 6d box
    (2 × 0.099 × 0.266 head diameter)
    6f 4
    40 24/0 3/8 6d box
    (2 × 0.099 × 0.266 head diameter)
    6 4
    50 24/0 3/8 6d box
    (2 × 0.099 × 0.266 head diameter)
    4 4
    50 24/0 3/8 8d common
    (21/2 × 0.131 × 0.281 head diameter)
    6 6
    60 24/0 3/8 6d box
    (2 × 0.099 × 0.266 head diameter)
    4 3
    60 24/0 3/8 8d common
    (21/2 × 0.131 × 0.281 head diameter)
    6 4
    70 24/16 7/16 8d common
    (21/2× 0.131 × 0.281 head diameter)
    4 4
    70 24/16 7/16 10d box
    (3 × 0.128 × 0.312 head diameter)
    6 4
    80 24/16 7/16 8d common
    (21/2 × 0.131 × 0.281 head diameter)
    4 4
    80 24/16 7/16 10d box
    (3 × 0.128 × 0.312 head diameter)
    6 4
    90 32/16 15/32 8d common
    (21/2 × 0.131 × 0.281 head diameter)
    4 3
    90 32/16 15/32 10d box
    (3 × 0.128 × 0.312 head diameter)
    6 4
    For SI: 1 inch = 25.4 mm, 1 pound per square foot = 0.0479 kPa.
    a. Fasteners shall comply with Sections R703.3.2 and R703.3.3.
    b. Maximum spacing of exterior soffit framing members shall not exceed 24 inches.
    c. Wood structural panels shall be of an exterior exposure grade.
    d. Wood structural panels shall be installed with strength axis perpendicular to supports with not fewer than two continuous spans.
    e.
  • CPC § 7.47 Medium relevance — show source text

    15|7.47|7.72|8.10|8.37|8.58| |45|75|30|7.05|7.35|7.58|7.93|8.18|8.36| |44|75|31|6.95|7.23|7.45|7.77|8.00|8.16| |43|75|32|6.85|7.13|7.33|7.63|7.83|7.98| |42|75|33|6.75|7.03|7.22|7.49|7.68|7.82| |41|75|34|6.65|6.93|7.12|7.37|7.55|7.67| |46|80|34|6.65|6.93|7.12|7.37|7.55|7.67| |40|75|35|6.55|6.83|7.01|7.26|7.42|7.54| |45|80|35|6.55|6.83|7.01|7.26|7.42|7.54| |44|80|36|6.44|6.73|6.92|7.15|7.30|7.41| |43|80|37|6.32|6.63|6.82|7.05|7.19|7.30| |42|80|38|6.20|6.53|6.72|6.95|7.09|7.19| |41|80|39|6.06|6.42|6.62|6.85|6.99|7.08| |46|85|39|6.06|6.42|6.62|6.85|6.99|7.08| |40|80|40|5.91|6.30|6.52|6.76|6.89|6.98| |45|85|40|5.91|6.30|6.52|6.76|6.89|6.98| |44|85|41|5.75|6.17|6.403|6.66|6.79|6.89| |43|85|42|5.57|6.03|6.28|6.55|6.70|6.79| |42|85|43|5.37|5.88|6.16|6.44|6.59|6.69| |41|85|44|5.15|5.71|6.01|6.33|6.49|6.59| |40|85|45|4.91|5.53|5.86|6.20|6.37|6.48| |Condenser DT2|Condenser DT2|Condenser DT2|14.04|11.23|9.36|7.02|5.62|4.68| |1. LIFT = Entering Condenser Water Temperature (°F) – Leaving Chilled Water Temperature (°F)
    2.

  • CPC § 9-11 Medium relevance — show source text


    9”||||||

    Col1 Col2 Col3
    /8” /8” /8”
    8” 8”

    9/16”

    Bus Drilling Detail

    Figure 9-11 Bused CT Cabinet (4-Wire Service, 400 Amps Max)

    9-9 2022 – 2023

    Section 9, Electric Metering: Components and Cable Terminating Facilities

    9.9. Meter Box for Transformer-Rated Metering

    Applicants must ensure that meter socket jaw requirements and connections are made according to the rules in Section 5, “Electric Metering: General,” Subsection 5.6., “Meter Types and Connections,” on Page 5-26.

    Horizontal Lay-In Bonding Lug With #8 Min. Wire Capacity

    3/4” Wire Pulling Space

    Caution Sign “DO NOT BREAK SEALS,

    NO FUSES INSIDE”

    Hub 12” Min. 12” Min. Col3 Hub Col5 Col6
    Front Seal
    ALS,
    E”
    Hub
    3”
    3”

    1-3/4” Max.
    5”
    See Note 1
    9”
    2
    11”
    Hub Hub Hub
    Front Seal
    ALS,
    E”
    Hub
    3”
    3”

    1-3/4” Max.
    5”
    See Note 1
    9”
    2
    11”
    9”
    2
    1”
    Front Seal
    ALS,
    E”
    Hub
    3”
    3”

    1-3/4” Max.
    5”
    See Note 1
    9”
    2
    11”
    Front Seal
    ALS,
    E”
    Hub
    3”
    3”

    1-3/4” Max.
    5”
    See Note 1
    9”
    2
    11”
    Front Seal
    ALS,
    E”
    Hub
    3”
    3”

    1-3/4” Max.
    5”
    See Note 1
    9”
    2
    11”
    See Note 1 See Note 1
    Front Seal
    ALS,
    E”
    Hub
    3”
    3”

    1-3/4” Max.
    5”
    See Note 1
    9”
    2
    11”
    1-3/4” 1-3/4” Max.
    Max.
    Max.

    2 K.O. (See Note 2)

    4-1/2”

  • CPC § 04-15 Medium relevance — show source text

    . . . . . . . . . . . . . . . . . . . UG-1: Services/Greenbook . . . . . . . . . . . . . . . . . . 063927 Methods and Requirements for Installing Commercial Underground Electric Services 0−600 Volts to Customer-Owned Facilities . . . . . . . . . . . . . . . . . . . . UG-1: Services/Greenbook . . . . . . . . . . . . . . . . . . 063928

    Table 1 Description of Items to be Furnished and Installed by Customer
    Item Description
    1 Option 1: Meter Adapter, Cooper B-Line Cat. No. MARR20L45GRSD
    (160A) Use with Customer’s Panel Rated at 160A Continuous1, 2
    1 Option 2: Meter Adapter, Ekstrom Industries No. 722B (175A). Specify Left, Right, or Bottom Hub
    2 Combination Service Meter and Breaker Panel (rating as required)
    3 Pull Termination Box, 8” x 12” x 4”, Rain-Tight, Circle A-W (Cooper B-Line) No. R-9007A or Equivalent (see Note
    4M on Page 2)
    4 Conduit, See Notes 4C and 4G on Page 1
    5 Hub to Be Closed and Made Tamper Proof
    6
    Pull Termination Box, 12” x 26” x 6”, Rain-Tight, Circle A-W Catalog Number R-90008, or Equivalent
    (see Note 4K on Page 2)

    1 Fifth jaw accessory, use Cooper B-Line Cat. No. 50365. 2 Reducer hub and gasket accessories for 2” conduit, use Cooper B-Line Cat. No. AW200 and 12750A.

    061032 Page 2 of 4 Rev. #04: 04-15-11

    UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion

Frequently asked questions

What does this A–G hub include?

This hub orients you to the alphabetic A–G entries found in Chapter 2 (Definitions) of the CPC and points to how those entries are used across the code; the full A–G entries themselves are in the Chapter 2 listings .

How should I use these definitions when applying the code?

Always read the defined term in Chapter 2 first when a requirement hinges on terminology; the CPC’s administration and purpose sections explain why definitions govern interpretation and enforcement (see §1.1.1 and §1.1.2) .

Where are letter-group headings and examples shown?

Definitions are alphabetized and grouped under numbered headings for each letter range (for example, the code shows headings such as §213.0 “K” and §214.0 “L” in the Chapter 2 listings); consult the Chapter 2 pages for the A–G entries you need .

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