Wiring & Work Request Information

ALL WIRING INSPECTIONS MUST BE SCHEDULED BY CALLING 508-841-1519

SELCO Construction Handbook

Construction Handbook

SELCO Work Request System

Effective January 1, 2019, a Work Request # from the electric utility will be required for certain types of electrical permits issued by the Town of Shrewsbury Building Department. To receive a Work Request #, please visit the SELCO section of the Town of Shrewsbury Online Storefront to submit your project information.

The Town of Shrewsbury Building Department assumes responsibility for all electrical permitting and inspections effective January 1, 2019. The online permitting portal and process will remain the same, but a revised fee schedule will apply (permitting fees available at ShrewsburyMA.gov/electricpermits).

Apply for SELCO Work Request #

Terms & Conditions

METER SOCKETS FOR SELF-CONTAINED METERS

A.

All new houses (single family, per unit apt./condo, duplex) shall have 100 amp/200 amp services per the 2020 NEC.

B.

All Commercial and Industrial installations shall have a meter socket with an approved single-handle-operated manual bypass.

  • Automatic bypasses are never permitted.

  • All 320-ampere meter sockets shall have Company approval.

  • Sockets with manual bypass must meet the following requirements: The non-bypassed, in-service position of the operating mechanism must be visible when the meter is installed.

  • It must not be possible to replace the meter socket cover when the operating mechanism handle is in the bypassed position.

  • All sockets with bypasses rated 200 or more amperes shall have a mechanism which locks the meter blades in the socket jaws.

C.

Clearance -

  • The minimum clearance between the sides of multi-station troughs, or single position sockets and the building wall is 4 inches.

  • The minimum clearance between meter sockets and gas meters or gas fitting opening is 3 feet.

D.

Meter Locations -

  • Meter equipment shall be installed on the line side of the service disconnecting means (hot sequence).

  • Outdoor meter locations are required for all single occupancy installations. Each location shall be readily accessible to Company representatives for meter reading, testing, and maintenance. Service will not be provided if reaching the meter requires Company employees to use adjacent property, climb fences or other obstructions, or cause damage to the Customer's shrubbery or flower beds in gaining access to the meter. The meter socket shall not protrude over the sidewalk or driveway. Meters on garages shall be so located that they will not be damaged by motor vehicles.

E.

When installing a pedestal meter it is required to have a disconnect and bypass.

Identification of Meter Sockets and Customer Disconnecting Means

All meter sockets and customer disconnecting means shall be plainly and permanently marked proper suite, floor, office, etc. by the electrical contractor or owner Service will not be provided to a building that has unidentified meter sockets.

Assigning Location of Service and Metering Equipment

The locations of the service and metering equipment shall be assigned by SELCO. No wiring dependent upon service entrance and meter locations shall be started until these locations have been assigned by SELCO and approved by the inspection authority having jurisdiction.

Contractors will notify SELCO of their intent to do work at least ten days in advance to allow SELCO time to assign locations.

INSTRUMENT TRANSFORMER SECONDARIES

A rigid metal raceway shall be provided between transformer cabinet and the meter test switch cabinet for instrument transformer secondaries as follows:

  • Provide 1 1/4 inch conduit for secondary conductor runs that are less than 20 feet in length.
  • Provide 1 1/2 inch conduit for secondary conductor runs that are 20 -50 feet (100 conductor ft.) in length. The maximum distance between meter and current transformer shall be 50 feet.
  • Secondary wiring will be furnished and installed by SELCO.

MAXIMUM SPAN OF WIRES

The maximum single span distance SELCO will run its overhead service drop conductors (open wire or cable) to the point of service attachment is 120 feet. Building heights, large conductors, or the necessity for street, driveway, or sidewalk crossings may reduce maximum permissible spans.

EXPANSION JOINTS ON RISERS AT METER

(Code) Article 300 7B National, 300 7C State Code

GROUND MOVEMENT

Raceways and cable entering raceways, where subject to movement by settlement frost, shall be so arranged as to prevent damage to the enclosed conductors or to equipment connected to raceways.

This section is intended to recognize “S” loops in underground direct burial to raceway cable transitions, expansion joints in pipe risers to fix equipment, and generally the provision of flexible connections to equipment subject to settlement of frost heaves.

MOTOR SPECIFICATIONS

Limitation of size. SELCO reserves the right to refuse service to the following:

  • Single phase motors larger than 1 HP or three phase motors larger than 5 HP.
  • Single or three phase motors of larger rating may be permitted providing SELCO’s facilities are adequate to supply service and the use of such motor(s) does not interfere with the quality of service rendered to other customers.
  • In order that proper capacity may be available to supply the load, SELCO must be advised of the motor(s) to be installed.

GROUNDING

Grounding electrode at panel or meter – will consist of two (2) 8 foot ground rods, 8 feet apart.

UNDERGROUND SERVICE

  • At pole 10′ steel pipe, steel elbow, 2 lengths of pipe with clips and weathercap for power
  • At pole 10′ 2″ PVC for cable TV
  • 3″ PVC schedule 40 pipe for 200 amp service
  • 4″ PVC schedule 40 pipe for above 200 amp service
  • 2″ PVC schedule 40 pipe for cable TV

TEMPORARY 100 AMP SERVICE STRUCTURE

CUSTOMER SHALL FURNISH, INSTALL & MAINTAIN

  • 6” x 6” x 15’ minimum wood service structure with braces & stakes to be sound
  • Service entrance cable
  • Meter socket & service disconnect
  • Ground rod with #6 minimum copper grounding electrode conductor

NOTES:

  • Grounding electrode conductor shall be stapled to timber at intervals of no more than one foot.
  • Where it is necessary to cross a highway, distribution line construction as specified by the DEPT. must be used.  TO COMPLY WITH ROAD CLEARANCE REQUIREMENTS.
  • THE STRUCTURE WILL BE LOCATED WITHIN 100FT. OF OUR EXISTING FACILITIES AS DESIGNATED BY THE WIRING INSPECTOR.

TEMPORARY SERVICE UNDERGROUND DISTRIBUTION

NOTES:

  • THE LIGHT DEPT. WILL SUPPLY WATTHOUR METER, CONDUCTORS, AND MAKE SERVICE CONNECTIONS.
  • THE CUSTOMER WILL SUPPLY SERVICE SUPPORT, CONDUIT, METER SOCKET, GROUND ROD/WIRE, AND SERVICE EQUIPMENT.

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