CMC · California Mechanical Code
Installation, Testing & Workmanship
This hub summarizes CMC requirements for workmanship, required inspections and pressure testing (including §309.0, §1405.2.2 and gas‑piping workmanship rules).
Last reviewed: July 6, 2026
Overview
This part of the California Mechanical Code organizes the installation, testing and workmanship requirements that ensure mechanical systems are safe, durable and serviceable. It covers basic workmanship rules (engineering practices, prohibitions on concealing defects, and requirement to follow approved construction documents and manufacturers’ instructions) found in §309.0 of the CMC.
It also sets out required inspections and tests for piping and process systems — including the requirement that process piping be pressure‑tested (hydraulic at 1.5× design pressure or pneumatic at 110% held for not less than 30 minutes) and inspected by the Authority Having Jurisdiction before use (see §1405.2.2 and related inspection sections).
More detailed workmanship rules apply to specific systems: gas piping must be free of defects and not repaired in place (see §1308.4.5), and thread and joint specifications are provided for field work (see Tables and threading rules in Chapter 1308). These provisions work together to require installation in a “workmanlike manner,” adherence to manufacturers’ instructions, and AHJ oversight.
In this section
Code references
Grounded in the retrieved California Mechanical Code — click a citation to read the verbatim passage:
CMC § 04-15 High relevance — show source text
. . . . . . . . . 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, 21 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
Optional Removable by Customer
To Be Removed
by PG&E
Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4)
For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4)
For Gas and Water Sealing Requirements,
see Documents 063927 and Document 063928
48” Min.
72” Max.
Customer Shall Dig and Backfill Trench
(see Note 4B on Page 1)
Min. Bend
Depth
To PG&E Distribution System
As required byCol2 Col3 Customer Shall Dig and Backfill Trench
(see Note 4B on Page 1)
For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4)
Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4)
To Be Removed
by PG&E
For Gas and Water Sealing Requirements,
seeDocuments 063927 andDocument 063928
To PG&E Distribution System
Optional Removable by Customer
48” Min.
72” Max.
As required by
Min. Bend
DepthDocument 063927 and Document 063928
Figure 1 Typical Service Conversion
PG&E Service Termination Point
See Note 4K on Page 2
PG&E Service Termination Point (see Note 4L on Page 2)
CMC § 04-15 High 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, 21 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
CMC § 1308.4.4.2.1 High relevance — show source text
1308.4.4.2.1 Factory-Assembled Anode- less Risers. Factory-assembled anodeless risers shall be recommended by the manufacturer for the gas used and shall be leak-tested by the manufacturer in accordance with written procedures. [NFPA 54:5.5.4.3(1)] 1308.4.4.2.2 Service Head Adapters and Field-Assembled Anodeless Risers. Service head adapters and field assembled anodeless risers incorporating service head adapters shall be recommended by the manufacturer for the gas used and shall be design-certified to meet the
requirements of Category I of ASTM D2513 and 49 CFR 192.281(e). The manufacturer shall provide the user qualified installation instructions as prescribed by 49 CFR 192.283(b). [NFPA 54:5.5.4.3(2)]
1308.4.4.2.3 Undiluted Liquefied Petro- leum Gas Piping. The use of plastic pipe, tubing, and fittings in undiluted LP-Gas piping systems shall be in accordance with NFPA 58.
[NFPA 54:5.5.4.3(3)]
1308.4.5 Workmanship and Defects. Gas pipe, tubing, and fittings shall be clear and free from cutting burrs and defects in structure or threading and shall be thoroughly brushed and chip and scale blown. Defects in pipe, tubing, and fittings shall not be repaired. Defective pipe, tubing, and fittings shall be replaced. [NFPA 54:5.5.5]
1308.4.6 Metallic Pipe Threads. Metallic pipe and fitting threads shall be taper pipe threads and shall comply with ASME B1.20.1. [NFPA 54:5.5.6.1]
1308.4.6.1 Damaged Threads. Pipe with threads that are stripped, chipped, corroded, or otherwise damaged shall not be used. Where a weld opens during the operation of cutting or threading, that portion of the pipe shall not be used. [NFPA 54:5.5.6.2]
1308.4.6.2 Number of Threads. Field threading of metallic pipe shall be in accordance with Table 1308.4.6.2. [NFPA 54:5.5.6.3]
TABLE 1308.4.6.2
SPECIFICATIONS FOR THREADING METALLIC PIPE
[NFPA 54: TABLE 5.5.6.3]
IRON PIPE SIZE
(inches)APPROXIMATE LENGTH OF
THREADED PORTION
(inches)APPROXIMATE
NUMBER OF THREADS
TO BE CUT
1⁄23⁄4 10
3⁄43⁄4 10
17⁄8 10
11⁄41 11
11⁄21 11 2 1 11
21⁄211⁄2 12
311⁄2 12
415⁄8 13 For SI units: 1 inch = 25.4 mm
CMC § 309.0 High relevance — show source text
309.0 Workmanship.
309.1 Engineering Practices. Design, construction, and workmanship shall comply with accepted engineering practices and shall be of such character as to secure the results sought to be obtained by this code.
309.2 Concealing Imperfections. It shall be unlawful to conceal cracks, holes, or other imperfections in materials by welding, brazing, or soldering, by using therein or thereon paint, wax, tar, solvent cement, other leak-sealing or repair agent.
309.3 Installation Practices. Mechanical systems shall be installed in a manner that is in accordance with this code, applicable standards, and the manufacturer’s installation instructions. All mechanical systems shall be in accordance with construction documents approved by the Authority Having Jurisdiction.
310.0 Condensate Wastes and Control.
310.1 Condensate Disposal. Condensate from air washers, air-cooling coils, condensing appliances, and the overflow from evaporative coolers and similar water-supplied equipment or similar air-conditioning equipment shall be collected and discharged to an approved plumbing fixture or disposal area. Where discharged into the drainage system, equipment shall drain by means of an indirect waste pipe. The waste pipe shall have a slope of not less than [1] ⁄ 8 inch per foot (10.4 mm/m) or 1 percent slope and shall be of approved corrosion-resistant material not smaller than the outlet size in
accordance with Section 310.3 or Section 310.4 for air-cooling coils or condensing appliances, respectively. Condensate or wastewater shall not drain over a public way.
310.1.1 Condensate Pumps. Where approved by the Authority Having Jurisdiction, condensate pumps shall be installed in accordance with the manufacturer’s installation instructions. Pump discharge shall rise vertically to a point where it is possible to connect to a gravity condensate drain and discharged to an approved disposal point. Each condensing unit shall be provided with a separate sump and interlocked with the equipment to prevent the equipment from operating during a failure. Separate pumps shall be permitted to connect to a single gravity indirect waste where equipped with check valves and approved by the Authority Having Jurisdiction.
310.2 Condensate Control. Where any equipment or appliance is installed in a space where damage is capable of resulting from condensate overflow, a drain line shall be provided and shall be drained in accordance with Section 310.1. An additional protection method for condensate overflow shall be provided in accordance with one of the following:
(1) A water level detecting device that will shut off the equipment or appliance in the event the primary drain is
EQUIPMENT CAPACITY IN
TONS OF REFRIGERATIONMINIMUM CONDENSATE
PIPE DIAMETER
(inches)
Up to 203⁄4
21 – 401
41 – 9011⁄4
91 – 12511⁄2
126 – 2502 For SI units: 1 ton of refrigeration = 3.52 kW, 1 inch = 25 mm
CMC § 08-15 High relevance — show source text
063928 Overhead and Underground Panel Board Construction . . . . . . . . . . . . . . . . . . . . . . . OH: Services/UG−1: Services/Greenbook . . . . . 065374
Table 1 List of Materials to be Furnished and Installed by the Customer
Table e 1 List of Materials to be Furnished and Installed by the Customer (see Figure 1 on Page 3 and Figure 3 on Page 4) Item Description 1 Service Termination Enclosure, Combination Meter Socket Panel
(see Figure 2 on Page 3 or Figure 4 on Page 4 for details)2 Square Post, 6” x 6” x 8’-0” Long, Cylindrical Post, 6” in Diameter x 8’-0” Long, Fully Treated
(see Note 4 on Page 1)3 Conduit (load side), Size and Material as Required by Building Code
(typically rigid galvanized steel or Schedule 80 PVC plastic)4 Conduit, Service Riser, Rigid Steel, Galvanized or Schedule 80 PVC Plastic, (see Note 5 on Page 3) 5 Conduit, Rigid Steel, Galvanized, With Pipe Strap (for bare ground wire, omit if armor clad wire is used) 6 Hub and Clamp, Grounding, to Suit Item 5 7 Ground Rod (see Note 6) 8 Ground Wire, Copper, Bare or Armor Clad
(size in accordance with applicable electrical codes and local requirements)9 Conduit, Plastic or Rigid Steel, for Underground Service (size as shown inDocument 063927
andDocument 063928)054712 Page 2 of 4 Rev. #09: 08-15-17
UG-1: Services Greenbook Permanent Wood Post Installation Underground Electric Service EMWP
Residential Service Only, 0−225 Amp
Notes
Poured concrete pad shall be approximately 4 inches thick. Provide 1/2-inch slope away from post to allow for drainage.
Install bend in direction of service trench. To facilitate cable installation, only one 90 ° bend is permitted in the service riser installation. If trench is shared with gas or other utilities, consult PG&E for required increased trench depth.
CMC § 306.0 High relevance — show source text
306.0 Industrial Wastes.
306.1 Detrimental Wastes. Wastes detrimental to the public sewer system or detrimental to the functioning of the sewage treatment plant shall be treated and disposed of as found necessary and directed by the Authority Having Jurisdiction. 306.2 Safe Discharge. Sewage or other waste from a plumbing system that is capable of being deleterious to surface or subsurface waters shall not be discharged into the ground or a waterway unless it has first been rendered safe by some acceptable form of treatment in accordance with the Authority Having Jurisdiction.
307.0 Location.
307.1 System. Except as otherwise provided in this code, no plumbing system, drainage system, building sewer, private sewage disposal system, or parts thereof shall be located in a lot other than the lot that is the site of the building, structure, or premises served by such facilities.
307.2 Ownership. No subdivision, sale, or transfer of ownership of existing property shall be made in such manner that the area, clearance, and access requirements of this code are decreased.
308.0 Prohibited Locations.
308.1 General. Piping, fixtures, appliances, or equipment shall not be so located as to interfere with the normal use thereof or with the normal operation and use of windows, doors, or other required facilities.
309.0 Workmanship.
309.1 Engineering Practices. Design, construction, and workmanship shall be in accordance with accepted engineering practices and shall be of such character as to secure the results sought to be obtained by this code. 309.2 Concealing Imperfections. It is unlawful to conceal cracks, holes, or other imperfections in materials by welding, brazing, or soldering or by using therein or thereon paint, wax, tar, solvent cement, or other leak-sealing or repair agent.
309.3 Burred Ends. Burred ends of pipe and tubing shall be reamed to the full bore of the pipe or tube, and chips shall be removed.
309.4 Installation Practices. Plumbing systems shall be installed in a workmanlike manner which is in accordance with this code, applicable standards, and the manufacturer’s installation instructions. All materials shall be installed so as not to adversely affect the systems and equipment or the structure of the building, and in compliance with all laws and other provisions of this code. All plumbing systems shall be in accordance with construction documents approved by the Authority Having Jurisdiction. 309.5 Sound Transmission. Plumbing piping systems shall be designed and installed in conformance with sound limitations as required in the California Building Code .
309.6 Dead Legs. Dead legs shall have a method of flushing.
310.0 Prohibited Fittings and Practices.
310.1 Fittings. No double hub fitting, single or double tee branch, single or double tapped tee branch, side inlet quarter bend, running thread, band, or saddle shall be used as a drainage fitting.
310.2 Drainage and Vent Piping. No drainage or vent piping shall be drilled and tapped for the purpose of making connections thereto, and no cast-iron soil pipe shall be threaded.
310.3 Waste Connection. No waste connection shall be
made to a closet bend or stub of a water closet or similar fix ture.
CMC § 0.099 High relevance — show source text
c, d, e Col2 Col3 Col4 Col5 Col6 MAXIMUM DESIGN
PRESSURE
(+ or - psf)MINIMUM
PANEL SPAN
RATINGMINIMUM PANEL
PERFORMANCE
CATEGORYNAIL TYPE
AND SIZEFASTENERa SPACINGe ALONG
EDGES AND INTERMEDIATE SUPPORTS
(inches)FASTENERa SPACINGe ALONG
EDGES AND INTERMEDIATE SUPPORTS
(inches)MAXIMUM DESIGN
PRESSURE
(+ or - psf)MINIMUM
PANEL SPAN
RATINGMINIMUM PANEL
PERFORMANCE
CATEGORYNAIL TYPE
AND SIZEGalvanized 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.CMC § 04-15 High relevance — show source text
E. The customer shall provide and install, in addition to termination facilities, all equipment needed to modify the service entrance when changing from overhead to underground service.
F. For conduit type on or within the applicant’s building , refer to PG&E Document 063927 or Document 063928. Also consult local code authority.
G. Install bend in direction of service trench. To facilitate cable installation, only one 90 ° bend is permitted in the riser. If a deeper trench is required, a minimum radius bend, per PG&E Document 063927 or Document 063928, shall be installed to the same depth as the trench.
Rev. #04: 04-15-11 061032 Page 1 of 4
UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion
H. If the trench is used jointly with other facilities (telephone, cable TV, etc.), increased cable depth may be required. Refer to PG&E’s electrical and gas service requirements Electric and Gas Service Requirements Manual (Greenbook) Appendix B, Electric and Gas Service Documents: Joint Trench Configurations and Occupancy Guide.
I. Size and type of cable, conduit, and other facilities on the load side of the service termination point are subject to local code requirements.
J. To avoid cable insulation damage, the ends of all risers shall be provided with a suitable termination fitting such as bushing, nipple, hub or end bell, etc.
K. Pull termination box as specified in Table 1 on below. Item 6 is for service up to 250 kcmil cable. For larger conductor, size box as required. See PG&E Document 058817.
L. The point where PG&E’s service conductors connect to the customer’s conductors, as shown in Figure 2 on Page 3 through Figure 7 on Page 4, is identified as the “PG&E Service Termination Point.”
M. Item 3 in Figure 4 on Page 4 and Figure 5 on Page 4, may be used only if the service conductor is 1/0 AWG or smaller, and can be pulled from the PG&E end of the service.
N. Customer may install short-radius conduit fitting (i.e. service elbows that prevent water from penetrating the fitting at termination to meter panel). Short radius conduit fittings should not contain splices or taps. The cover also must be sealable by PG&E personnel.
Grounding: The customer shall be responsible for bonding and grounding all exposed non-current-carrying metal parts. Grounding shall be in accordance with the National Electric Code (NEC) and local ordinances, except that the grounding wire shall be protected against mechanical damage by rigid steel conduit or armored copper ground wire.
Metering Requirements: Meter will be furnished and installed by PG&E.
References Location Document
CMC § 1401.0 High relevance — show source text
334 2025 CALIFORNIA MECHANICAL CODE
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CHAPTER 14
PROCESS PIPING
1401.0 General.
1401.1 Applicability. Except as otherwise addressed in this code, this chapter shall govern the installation of process piping in or in conjunction with a building or structure located upon the premises.
1402.0 Permit.
1402.1 General. It shall be unlawful to install, alter, or repair or cause to be installed, altered, or repaired process material piping without first obtaining a permit.
Permits for process piping shall show the total number of outlets to be provided for on each system and such other information as required by the Authority Having Jurisdiction.
Fees for process piping permits are included in Table 104.5.
1403.0 Plans Required.
1403.1 General. Plans, engineering calculations, diagrams, and other data shall be submitted in one or more sets with each application for a permit. The Authority Having Jurisdiction shall be permitted to require plans, computations, and specifications to be prepared and designed by a registered design professional.
Where plans or other data are submitted for review, a plan review fee shall be paid, as provided in Section 104.3.2.
1404.0 Workmanship.
1404.1 General. Process piping shall not be strained or bent, nor shall tanks, vessels, vats, appliances, or cabinets be supported by or develop strain or stress on the piping.
1405.0 Inspections.
1405.1 General. Upon completion of the installation, alteration, or repair of process piping, and prior to the use thereof, the Authority Having Jurisdiction shall be notified that such piping is ready for inspection.
Excavations required for the installation of underground piping shall be kept open until such time as the piping has been inspected and approved. Where such piping is covered or concealed before such approval, it shall be exposed upon the direction of the Authority Having Jurisdiction.
1405.2 Required Inspections. The Authority Having Jurisdiction shall make the following inspections and shall either approve that portion of the work as completed or shall notify the permit holder wherein the same fails to be in accordance with this code.
1405.2.1 Rough Piping Inspection. This inspection shall be made after process piping authorized by the permit has been installed and before piping has been cov
ered or concealed. This inspection shall include a determination that the piping size, material, and installation are in accordance with the requirements of this code.
1405.2.2 Final Piping Inspection. This inspection shall be made after piping authorized by the permit has been installed and after portions thereof that are to be covered or concealed are so concealed. This inspection shall include a pressure test, at which time the piping shall stand a pressure of not less than one-and-one-half times the maximum designed operating pressure where hydraulic testing is conducted or 110 percent where testing is conducted pneumatically. Test pressures shall be held for a length of time satisfactory to the Authority Having Jurisdiction, but in no case for less than 30 minutes with no perceptible drop in pressure. HPM drain, waste, and vent piping shall be tested in accordance with the plumbing code. Tests shall be made in the presence of the Authority Having Jurisdiction. Necessary apparatus for conducting tests shall be furnished by the permit holder.
CMC § 705.1.2 High relevance — show source text
705.1.2 Solvent Cement Joints. Solvent cement joints for ABS pipe and fittings shall be clean from dirt and moisture. Pipe shall be cut square and shall be deburred. Where surfaces to be joined are cleaned, and free of dirt, moisture, oil, and other foreign material, the solvent cement that complies with ASTM D2235 shall be applied to all joint surfaces. Joints shall be made while both the inside socket surface and outside surface of pipe are wet with solvent cement. Hold joint in place and undisturbed for 1 minute after assembly. [HCD 1 & HCD 2] Plastic pipe and fittings joined with solvent cement shall utilize Low VOC primer(s), if a primer is required, and Low VOC cement(s) as defined in Section 214.0.
705.1.3 Threaded Joints. Threads shall comply with ASME B1.20.1. A minimum of Schedule 80 shall be permitted to be threaded. Molded threads on adapter fittings for the transition to threaded joints shall be permitted. Thread sealant compound shall be applied to male threads, insoluble in water, and nontoxic. The joint between the pipe and transition fitting shall be of the solvent cement type. Caution shall be used during assembly to prevent over tightening of the ABS components once the thread sealant compound has been applied. 705.2 Cast-Iron Pipe and Joints. Joining methods for cast-iron pipe and fittings shall be installed in accordance with the manufacturer’s installation instructions and shall comply with Section 705.2.1 or Section 705.2.2. 705.2.1 Caulked Joints. Caulked joints shall be firmly packed with oakum or hemp and filled with molten lead to a depth of not less than 1 inch (25.4 mm) in one continuous pour. The lead shall be caulked thoroughly at the inside and outside edges of the joint. After caulking, the finished joint shall not exceed [1] ⁄ 8 of an inch (3.2 mm) below the rim of the hub. No paint, varnish, or other coatings shall be permitted on the joining material until after the joint has been tested and approved.
705.2.2 Mechanical Joints and Compression Joints. Mechanical joints for cast-iron pipe and fittings shall be of the elastomeric compression type or mechanical joint couplings. Compression type joints with an elastomeric gasket for cast-iron hub and spigot pipe shall comply with ASTM C564 and be tested in accordance with ASTM C1563. Hub and spigot shall be clean and
2025 CALIFORNIA PLUMBING CODE 169
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SANITARY DRAINAGE
free of dirt, mud, sand, and foreign materials. Cut pipe shall be free from sharp edges. Fold and insert gasket into the hub. Lubricate the joint following manufacturer’s instructions. Insert spigot into hub until the spigot end of the pipe bottom out in the hub. Use the same procedure for the installation of fittings.
A mechanical joint shielded coupling type for hubless cast-iron pipe and fittings shall have a metallic shield that complies with ASTM A1056, ASTM C1277, ASTM C1540, or CISPI 310.
CMC § 08-15 High relevance — show source text
6” x 6” x 8’-0” Long, Cylindrical Post, 6” in Diameter x 8’-0” Long, Fully Treated
(see Note 4 on Page 1)| |3|Conduit (load side), Size and Material as Required by Building Code
(typically rigid galvanized steel or Schedule 80 PVC plastic)| |4|Conduit, Service Riser, Rigid Steel, Galvanized or Schedule 80 PVC Plastic, (see Note 5 on Page 3)| |5|Conduit, Rigid Steel, Galvanized, With Pipe Strap (for bare ground wire, omit if armor clad wire is used)| |6|Hub and Clamp, Grounding, to Suit Item 5| |7|Ground Rod (see Note 6)| |8|Ground Wire, Copper, Bare or Armor Clad
(size in accordance with applicable electrical codes and local requirements)| |9|Conduit, Plastic or Rigid Steel, for Underground Service (size as shown inDocument 063927
andDocument 063928)|054712 Page 2 of 4 Rev. #09: 08-15-17
UG-1: Services Greenbook Permanent Wood Post Installation Underground Electric Service EMWP
Residential Service Only, 0−225 Amp
Notes
Poured concrete pad shall be approximately 4 inches thick. Provide 1/2-inch slope away from post to allow for drainage.
Install bend in direction of service trench. To facilitate cable installation, only one 90 ° bend is permitted in the service riser installation. If trench is shared with gas or other utilities, consult PG&E for required increased trench depth.
Meter socket enclosures for residential service (Figure 2) shall not be equipped with any circuit closing device.
Approved meter socket enclosures for non-residential service (Figure 4 on Page 4) shall be equipped with test bypass facilities.
Whenever it is necessary to install a service longer than 75 feet, the applicant must contact PG&E before ordering the service riser, conduit or, termination facilities. If the service riser and conduit called for in Table 2 on Page 4 will not accept the cable required to meet the voltage and/or flicker drop requirements, or will cause cable pulling problems, the next larger PG&E standard conduit size must be installed. (Refer to Document 041543 for flicker and voltage drop requirements and Document 038193 for cable pulling limitations.)
66” Preferred
CMC § 4.00 High relevance — show source text
10 screw
into 33-mil steel|6|4.00|3.50|3.05|2.70|1.95|4.00|2.90|2.20|1.70|0.55| |Steel framing
(minimum penetration
of steel thickness + 3
threads)|No. 10 screw
into 33-mil steel|8|4.00|3.10|2.50|2.05|1.00|4.00|2.25|1.35|0.70|DR| |Steel framing
(minimum penetration
of steel thickness + 3
threads)|No. 10 screw
into 33-mil steel|12|4.00|2.25|1.35|0.70|DR|3.70|1.05|DR|DR|DR| |Steel framing
(minimum penetration
of steel thickness + 3
threads)|No. 10 screw
into 43-mil steel or
thicker|6|4.00|4.00|4.00|4.00|3.60|4.00|4.00|3.80|3.45|2.70| |Steel framing
(minimum penetration
of steel thickness + 3
threads)|No. 10 screw
into 43-mil steel or
thicker|8|4.00|4.00|4.00|3.70|3.00|4.00|3.85|3.25|2.80|1.80| |Steel framing
(minimum penetration
of steel thickness + 3
threads)|No. 10 screw
into 43-mil steel or
thicker|12|4.00|3.85|3.25|2.80|1.80|4.00|3.05|2.15|1.50|DR| |For SI: 1 inch = 25.4 mm, 1 mil = 0.0254 mm, 1 pound per square foot = 0.0479 kPa, 1 pound per square inch = 6.895 kPa.
DR = Design Required.
o.c. = On Center.
a. Steel framing shall be minimum 33-ksi steel for 33-mil and 43-mil steel, and 50-ksi steel for 54-mil steel or thicker.
b. Where cladding is attached to wood structural panel sheathing only, fastening requirements shall be in accordance with Table R703.3.3. For brick veneer tie connections to
wood structural panels, refer to Table R703.8.4(2).
c. Screws shall comply with the requirements of ASTM C1513.
d. Foam sheathing shall have a minimum compressive strength of 15 psi in accordance with ASTM C578 or ASTM C1289.|For SI: 1 inch = 25.4 mm, 1 mil = 0.0254 mm, 1 pound per square foot = 0.0479 kPa, 1 pound per square inch = 6.895 kPa.
DR = Design Required.
o.c. = On Center.
a. Steel framing shall be minimum 33-ksi steel for 33-mil and 43-mil steel, and 50-ksi steel for 54-mil steel or thicker.
b. Where cladding is attached to wood structural panel sheathing only, fastening requirements shall be in accordance with Table R703.3.3.
Frequently asked questions
What tests are required before using process piping?
Process piping requires a final pressure test: hydraulic tests at not less than 1.5 times the maximum designed operating pressure or pneumatic tests at 110% of design pressure, held for a period satisfactory to the AHJ but not less than 30 minutes, with tests performed in the presence of the inspector (§1405.2.2).
What does “workmanlike manner” mean under the CMC?
“Workmanlike” means design, construction and workmanship must follow accepted engineering practices, applicable standards, the manufacturer’s installation instructions, and the construction documents approved by the Authority Having Jurisdiction; it also prohibits concealing cracks, holes, or defects (see §309.1–309.3).
Who approves tests and inspects concealed work?
The Authority Having Jurisdiction (AHJ) must be notified for inspections; required rough and final inspections (including witnessing pressure tests) must be completed and approved by the AHJ before use or concealment of piping (§1405.1–1405.2).
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