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2011 Electric Service Requirements Manual, 2nd - Pacific Power

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<strong>2011</strong> <strong>Electric</strong> <strong>Service</strong> <strong>Requirements</strong>, 2 nd Edition<br />

Section 7<br />

7.7.2 Underground <strong>Service</strong> to Wall-Mounted Meters<br />

Installation requirements for underground service to wall-mounted meters are listed below.<br />

These requirements are in addition to the general requirements given in Section 7.6 and the<br />

requirements for underground service in Section 7.7.1.<br />

<strong>Requirements</strong>:<br />

1. The meter base and conduit shall be securely attached to the structure.<br />

2. The meter socket shall be plumb when inspected.<br />

3. 2” x 4” back supports or 5/16” molly screws are required.<br />

4. Conduit and sleeve are required when passing through a paved area adjacent to<br />

building foundations.<br />

5. Manufactured or field bends made of PVC matching the quality of factory bends may<br />

be used directly under the meter enclosure to align the ground riser sweep with the<br />

meter socket. Field bends shall be free of flattening, cracks or burns. The minimum<br />

bending radius shall be 36”. The contractor is responsible for proofing all conduit<br />

systems.<br />

6. For brick veneer or concrete block, a 1/4” x 3 1/4” lead sleeve expansion bolt in the<br />

joint shall be used in place of lag screws on anchor straps.<br />

7. The meter enclosure knockout diameter shall be able to receive the conduit riser.<br />

When 3” conduit is required and a flush-mount meter enclosure is installed, a 2”x6”<br />

stud wall must be constructed. See Section 6 for conduit requirements.<br />

8. When a 3” knockout is not available, a swedge may be used to transition to a smaller<br />

conduit size. <strong>Power</strong> Company approval shall be obtained prior to installation.<br />

9. Above-ground conduit shall be Schedule 40 PVC or better. Some jurisdictions may<br />

require conduit grades better than Schedule 40; consult the local governing code.<br />

10. The electrical label or permit shall be displayed on the meter base.<br />

Figure 7.7.2 shows a typical installation of a meter and associated hardware for surface<br />

and flush wall-mounted meters.<br />

Figure 7.7.2 − Underground <strong>Service</strong> to Wall-Mounted Meters<br />

SURFACE‐MOUNT INSTALLATION<br />

FLUSH‐MOUNT INSTALLATION<br />

See Figure 7.8.4 for anchor/conduit strap detail (anchor strap no. 1).<br />

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<strong>Electric</strong>al label or permit<br />

must be displayed on the<br />

meter base.<br />

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24” min.<br />

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Final grade<br />

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conduit strap<br />

(when required)<br />

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final grade<br />

6' max.<br />

4' min.<br />

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Conduit sleeve required<br />

when passing through<br />

concrete or pavement.<br />

SIDE VIEWS<br />

FRONT VIEW<br />

(veneer removed)<br />

24” min.<br />

Ground in accordance with the<br />

latest issue of NEC (Article 250)<br />

The customer is responsible for installing<br />

the meter base and riser between studs.<br />

This manual shall be distributed and interpreted in its entirety. Individual pages will not represent all the requirements necessary for an installation.<br />

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