SECTION III

UNDERGROUND RESIDENTIAL SERVICE

  1. PURPOSE
  2. This section describes the installation of an underground electrical service to a residence, with the meter installed either on the house or on a post that you install. This type of service is commonly installed when you do not want overhead lines installed on your property or you live in an area where the overall electrical system is underground. This underground service is installed in a buried conduit from the nearest appropriate SVEC device to you house. Service will be provided in accordance with SVEC Line Extension Policy.

  3. LIMITS
  4. The typical single family residential service of this type consists of less than 200 amp meter base installed on your house. The following limits apply to this type of service.

    The typical maximum size self-contained meter base that can be installed on a single residence is limited to 200 amps. If your requirements are greater than 200 amps, please contact SVEC.

    The length of the electrical service should be limited to no more than 200 feet due to possible voltage drop. Should the length of service be such that it would prove electrically prohibitive, a transformer and primary extension may be required.

    Underground service is required in areas served by an overall underground electrical distribution system.

  5. YOUR RESPONSIBILITY

You are responsible for furnishing and installing the following equipment and maintaining the meter base.

    1. Provide or make arrangements and pay for the trench excavation and back fill in accordance with SVEC's specifications.
    2. Conduit installed in the trench from the meter base to the nearest SVEC facility. The conduit size required is 2 inch in diameter for a 200 amp service. Any conduit exposed above ground level must be Schedule 80 PVC and Schedule 40 PVC where buried. You need to put a 5/32 inch or larger polypropylene pull line in the conduit. The pull line must have a breaking strength of 600 pounds.
    3. If the length of the conduit run contains turns in excess of 270 degrees you may be required to install the details of these boxes if they are needed.
    4. SVEC must inspect the trench and conduit installation before you back fill the ditch. SVEC requires this inspection as we maintain the conduit and wire after initial installation.
    5. The meter base and main breaker or fused disconnect installed either;
      1. On the side of your residence.
      2. On a meter post that you install.
    1. One 8 foot ground rod. (Two ground rods spaced 6 feet apart in Oregon)
    2. You must arrange for the county to inspect and approve the installation of this equipment before SVEC will provide electric service.

This equipment must be installed in accordance with local, state, and national electrical codes. The county inspection verifies compliance with these codes.

  1. SVEC'S RESPONSIBILITY

SVEC will designate the meter location and help you determine, and mark, a route for the trench and the conduit that you install. This route must be relatively straight, no more than three 90-degree bends (270 degrees total), or SVEC crews will not be able to install the wires. The meter location should be on the side of the house facing the nearest SVEC facilities. The meter shall not be located in an enclosed area, such as, a porch or garage, and shall be accessible to SVEC personal at all times. The length of the route also influences the cost and the power quality you will receive from your electrical service.

Please contact SVEC early in the process of planning and designing your residence. This allows us to agree on a meter location, which meets both our needs before construction has started. A change in the meter location after construction has started can be costly. You may be required to relocate some of your equipment or accept a longer more expensive route for the installation of electrical service, which would be at your expense.

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