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B. ENTRANCE CABLE UNDERSIZED:
The entrance cable, which extends from the weatherhead near the top of the house or via an underground conduit through the meter base and into the distribution panel, should be sized according to the size of the distribution panel. A large panel (Fig. B1, Item A) and a small cable (Fig. B1, Item B) combination may cause the wire to overheat. This combination usually occurs when a heavy up installation remains incomplete or when an amateur heavy up has been accomplished by a homeowner. Interpret this as a warning that the work was probably not done under an electrical permit. This should also serve as a warning that other amateur work may exist and may constitute a fire hazard.
 Fig. B
WHAT TO: HOW TO:
A permit for completion of the heavy up should be obtained, and the new wire and meter base installed. THIS IS A JOB FOR A PROFESSIONAL ELECTRICIAN ONLY.
REFERENCE: E1, E2,E4, E5, E17 |
