Residential Electrical Services Permit Requirements

To Schedule Utility Disconnect and Reconnect, contact: ampinspect@alamedamp.com

Code Sections

Alameda Municipal Power (AMP) Regulations

CEC Articles 110, 230, 250, 300, 344, 404

CPC 1211

Permits & Inspections

  • A permit is required for installation, modification, removal, or replacement of an electrical service.
  • Do not cover any portion of the installation until inspected and instructed: “Okay to cover”.
  • Modification of any portion of the existing service requires a complete service upgrade to the current code. (AMP)

Permit Application Required Details

  • Service size. ≤ 200 amps for R3 single fam dwellings may use Express permitting. All others must apply for a standard permit and provide load calcs.
  • Service entrance conductor size and type.
  • Conduit size and type.
  • Number of meters with each corresponding disconnect size.
  • Panel make and model number.
  • IMPORTANT: the service panel must be selected from the EUSERC-compliant list attached.

Protection of Service Entrance (SE) Conductors

  • Main service disconnect shall have a rating not less than the calculated load.
  • SE conductors shall be sized based on the busbar rating of the service meter main panel.
  • All services supplying dwelling units shall be provided with surge-protection devices. CEC 230.67

General Requirements

  • Each service shall have only one disconnecting means unless the requirements of CEC 230.71(B) are met.
  • (B) Two to Six Service Disconnecting Means
    • Two to six service disconnects shall be permitted for each service permitted by 230.2 or for each set of service-entrance conductors permitted by 230.40, Exception No. 1, 3, 4, or 5.
    • The two to six service disconnecting means shall be permitted to consist of a combination of any of the following:
      1. Separate enclosures with a main service disconnecting means in each enclosure
      2. Panelboards with a main service disconnecting means in each panelboard enclosure
      3. Switchboard(s) where there is only one service disconnect in each separate vertical section where there are barriers separating each vertical section
      4. Service disconnects in switchgear or metering centers where each disconnect is located in a separate compartment
    • Informational Note No. 1: Metering centers are addressed in UL 67, Standard for Panelboards.
    • Informational Note No. 2: Examples of separate enclosures with a main service disconnecting means in each enclosure include but are not limited to motor control centers, fused disconnects, circuit breaker enclosures, and transfer switches that are suitable for use as service equipment.
  • Meter locations shall be accessible and outdoors. All electrical meter installations shall be located to be accessible to authorized representatives of AMP for installation, removal, reading, testing, and inspection. AMP
  • LBs or gutters shall not be installed between the service panel and the weatherhead or vault. AMP
  • Conduit Type and Size: Rigid conduit sized per CEC. Min of ≥ 1.25” and threaded. (NO COMPRESSION FITTINGS) CEC 230.50
  • The service panel shall be installed ≥ 10” from the corner of the house to the center of the meter. AMP
  • Drip loops are required. CEC 230.54.F.
  • The weatherhead shall be installed ≥ 8” beyond the edge of the roof. AMP
  • Double conduit straps are required at the corner adjacent to the weatherhead. AMP
  • A conduit riser clamp must be installed within 3’ of all conduit terminations. CEC 344.30
  • Conductors shall be ≥ 18” proud of the weatherhead. AMP
  • The service panel must be ≥ 3’ from the gas riser & meter. AMP
  • Max breaker height is ≤ 6’7”. CEC 404.8
  • Panel circuits must be labeled. CEC 110.22.A
  • There shall be no gate between the street and the meter. AMP
  • All conduits below grade require duct seal. CEC 300.5.G
  • Meter height: 48”-66” or 72”-75” (driveway) from the centerline of the meter to the standing surface. Where the meter location does not meet the minimum height clearances, protective bollards shall be installed. AMP

Working Space

  • The meter shall be ≥ 3' from the property line. AMP
  • A level standing surface with a clear and unobstructed working space must be provided and maintained in front of each metering installation. The working space must have a width of ≥ 30” and a height of ≥ 75” for individual field-installed meter panels (78” minimum from the standing surface for all other installations).
  • The working space must extend ≥ 36” in front of the service panel and be free from all obstructions and vegetation.

Residential Service Size Requirements and Limitations

Minimum Service:

  • Single family: 100 amps.
  • Multi-family: 60 amps.
  • Attached & detached ADUs: 100 amps each.

Size Limitations:

  • ≤ 200 amps: No restrictions. Express permitting is allowed.
  • > 200 amps and R2 multifamily: Apply for a standard permit and requires load calcs.

Grounding and Bonding

  • #4 rebar or bare copper UFER (20’) or 8’ x 5/8” rod with #4 copper. CEC 250.52.3.2
  • GEC shall be protected. CEC 250.64.B.
  • Ground rod shall be placed as close as practicable to the service. CEC 250.30.A.4
  • All metallic piping systems shall be bonded. CPC 1211
  • #6 copper cold water bond shall be installed outside & accessible. AMP

Service Overhead Clearances CEC 230.24

  • ≥ 8’ above roofs < 4:12 pitch.
  • ≥ 3’ above roofs ≥ 4:12 pitch.
  • ≥ 18” at eaves.
  • ≥ 18’ above nonresidential driveway.
  • ≥ 10’ above walkways.
  • ≥ 12’ above driveways.
  • ≥ 18’ above roadway.

EUSERC Approved Panels

If your EUSERC panel is not listed below then contact Reynaldo Bascara (bascara@alamedamp.com) at AMP for approval. 

EATON Catalog No:

  • 1MBE1428B100BS
  • CMBE1212L200BS
  • CMBE24L125BTS
  • CMBE24L200BTS
  • CMBE3242B150BS
  • CMBE3242B200BS
  • CMBE3242B225BS
  • CMBE4242B200BTS
  • CMBE88B150BTS
  • CMBE88B200BTS
  • CMBEB150BTS
  • CMBEB200BTS
  • CMBER88B150BTS
  • MBE1212L200BTS
  • MBE1224B100BTS
  • MBE1224B100TS
  • MBE1224B125BTS
  • MBE1224B125TS
  • MBE1224PV100BTS
  • MBE1428B100BS
  • MBE2040B150BTS
  • MBE2040B200BS
  • MBE2040B200BTS
  • MBE2040B200TS
  • MBE2040B225BTS
  • MBE2040BH200BTS
  • MBE2040PV200BTS
  • MBE24L125BTS
  • MBE24L200BTS
  • MBE4040B200BSH
  • MBE4040B200BTS
  • MBE4040PV200BTS
  • MBE48B150BTS
  • MBE48B200BTS
  • MBE816P200TS
  • MBE816P200TSCU
  • MBE88B200BTS
  • MBEB200BTS
  • MBER48B150BTS
  • MBER48B200BTS

GENERAL ELECTRIC Catalog No:

  • TSF420CSCU
  • TSM1212CSCU
  • TSM1610CSCU
  • TSM1612CSCU
  • TSM2020CSCU
  • TSM2022USCU
  • TSM2420US42
  • TSM3220USCU
  • TSM3220UWCU
  • TSM3222USCU
  • TSM4020UWCU

SIEMENS Catalog No:

  • MC0816B1200ESN
  • MC0816B1200EST
  • MC0816S1200SCT
  • MC1212L1200SED
  • MC1224B1100ESC
  • MC1224B1125ESC
  • MC2040B1200ESC
  • MC2040B1200SED
  • MC2442B1200ESC
  • MC2442B1200ESV
  • MC2442B1225ESC
  • MC2442S1200SC
  • MC3040B1200SECW
  • MC3040S1200SC
  • MC3042B1200SED
  • MC3042B1225SED
  • MC3042B1400SC
  • MC4040B1200SECW
  • MC4040S1200SC
  • MM2020B100ESC
  • MM2020L1125ESC
  • MM2020L1200ESC
  • MM2020B1200ESC

SQUARE D Catalog No:

  • SC1624M100S
  • SC1624M125S
  • SC2040M200C
  • SC2040M200PS
  • SC2040M200S
  • SC3042M200PS
  • SC40M200S
  • SC42M200PS
  • SC816F150PS
  • SC816F200PS
  • SU2040M200C

Typical Overhead Service Installation and Clearance Requirements

The following notes and requirements apply when replacing or altering service panels or adding electric panels within the Alameda Municipal Power service area.

electrical-service-requirements-1.png

Diagram Legend

  • Black and white hash-patterned area: No existing electric meter/panel and no new electric devices
  • Solid White Area: No electrical, no conduit, no source of ignition, no meter/panel, and no newgrounding wires or clamps
  • Black dot: Regulator vent opening
  • Black line: conduit

General Installation Notes

  • No obstructions are permitted within the area around the meter. See DWG 1-L-451 for details.
  • Maintain a 30” wide x 36” deep clear and level working space in front of the electric meter.
  • The weatherhead shall be located no more than 24” from the service attachment point and between 18” and 48” above the roof; 24” to 30” is recommended. If the periscope extends more than 30” above the roof, it shall be braced against the service conductor pull.
  • The point of attachment may be either on the building wall near the utility line or on a periscope fixed to the building's roof, not more than 18 inches back of the roofline.
  • The point of attachment shall be between 12 and 18 feet above grade and safely accessible by ladder. Working space for a ladder equal to a depth of 1/4 the height of the ladder top support is required.
  • Bracing shall be two galvanized steel braces (3/4" rigid steel pipe or 1-1/4" x 1-1/4" x 1/8" steel angle iron minimum) securely bolted or lagged to the framework with 3/8" x 3" lag screws with a 90° spread and secured to the periscope no more than 6” below the service point of attachment.
  • Roof clearances for the service drop must meet the requirements of CEC Article 230.24.
  • Only electrical facilities may be attached to the electrical weatherhead.
  • Only threaded pipe couplings are allowed (no compression couplings). Bracing is required both above and below the coupling.
  • Meter socket clearance from the ground shall be measured from the final grade.
  • Where load requires heavy service drop conductors, the service drop will be 3 single conductors instead of cable and 3 eyebolts or insulated clevices will be required.
  • Meter mounting device shall have a main disconnect in the same cabinet.
  • For more detailed information consult AMP Electric Service Requirements.
  • Unless otherwise noted, all service facilities are the responsibility of the customer.
  • Service entrance conduit and cable must meet CEC requirements.
  • Per CEC Article 404.8(A), the highest point of the breaker handle cannot be more than 79” above grade/floor.
  • See AMP ENG STD DWG 1-L-624 for meter details on meter installations in driveways.

Recommended Service Entrance Conductor

Service Voltage (Volts) Main Service (Amps) Customer's Minimum Conduit Size Recommended Conductor Size (AL) Recommended Conductor Size (CU)
120/240 1-phase 100/125 1 1/4" - 2" 1/0 2
120/240 1-phase 200 2" 4/0 2/0
120/208 1-phase 3 wire 200 2" 4/0 2/0

Typical Overhead Residential Electrical Service Up to 200 Amperes

electrical-service-requirements-2.png

General Notes

  • #6 AWG bonding jumper required between internal gas piping and water piping.
  • Conductors and rigid conduit sizes shall be in accordance with applicable Alameda Municipal Code/California Electrical Code.
  • All conduit upstream of the electric meter shall be threaded rigid conduit. No condulets, splice, junction boxes and wiring gutters allowed (e.g. C, L, LB, LR, LF, T, TB, X). If conduit elbow are used, they shall be threaded rigid galvanized conduit.
  • Electric service meter panel shall be surface mounted. Exceptions have to be approved by AMP Engineering and inspected and approved by AMP Compliance Inspector.

Plan View

electrical-service-requirements-3.png

Plan View Notes

  • Distance between property line and meter panel is 3 ft. (0.9m) MINIMUM.
  • Meter shall be located outside of any side yard gate.

Required Minimum Separations and Clearances Between Electrical and Gas Meters

electrical-service-requirements-4.png

Diagram Legend:

  • Black and white hash-patterned area: No existing electric meter/panel and no new electric devices
  • Solid White Area: No electrical, no conduit, no source of ignition, no meter/panel, and no newgrounding wires or clamps
  • Black dot: Regulator vent opening
  • Black line: conduit

Notes:

  • Electric meter panel locations are subject to Alameda Municipal Power (AMP) approval and must comply with the Alameda electrical code requirements.
  • Gas meter locations are subject to gas utility's approval.
  • Individual electric meter when installed near a driveway.

Meter Working Space

Working space in front of the meter permits access to the metering installation and provides a safe working environment for personnel. A working space entirely on the property of the customer is required in front of all meters.

  • The working space is to be kept clear and unobstructed at all times. Landscaping, structures or stored material shall not intrude into the working space.
  • The height of the clear working space shall be 75 inches (190.5cm) minimum from the standing surface.
  • The width of the clear working space shall be 30 inches (76.2cm) minimum on one-meter installation and shall extend the additional width necessary for access to the total number of metering panels. Centerline of any meter shall not be less than 10 inches (25.4cm) from adjacent side wall or other protruding obstruction.
  • The depth of the clear working space shall be 36 inches (91.4cm) minimum services rated 150V or less to ground. When the service is in excess of 150V to ground, the depth shall be as require applicable electrical codes or as dictated by the physical design and arrangement of the metering cubicles.
electrical-service-requirements-5.png

Notes:

  • 78" (198.12cm) minimum required for other than individual field-installed meter panels.
  • EUSERC allows 48" (121.9cm) minimum and 75" (190.5cm) maximum meter height for free standing-factory assembled structures (e.g. switchboard or meter pedestal).
  • Meter height shall be 72" (182.9cm) min. to 75" (190.5cm) max. when installed near driveway.

 

Revised: May 29, 2025

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