Service-entrance conductors entering or on the exterior of buildings or other structures shall be insulated in accordance with Section E3406.5.
1. A copper grounded conductor shall not be required to be insulated where it is:
1.1. In a raceway or part of a service cable assembly,
1.2. Directly buried in soil of suitable condition, or
1.3. Part of a cable assembly listed for direct burial without regard to soil conditions.
2. An aluminum or copper-clad aluminum grounded conductor shall not be required to be insulated where part of a cable or where identified for direct burial or utilization in underground raceways.
Insulated conductors and cables used where exposed to direct rays of the sun shall comply with one of the following:
- The conductors and cables shall be listed, or listed and marked, as being sunlight resistant.
- The conductors and cables are covered with insulating material, such as tape or sleeving, that is listed, or listed and marked, as being sunlight resistant.
Service heads, and goosenecks in service-entrance cables, shall be located above the point of attachment of the service-drop or overhead service conductors to the building or other structure.