§ 150.036 SERVICE ENTRANCE.
   (A)   Disconnect switches and breaker panels shall be installed in readily accessible locations. In no case shall disconnect switches or breaker panels be located in bathrooms, closets, under stairs, in cabinets or over basins, sinks or stoves. Residential panel main disconnects shall be no more than five feet, six inches above floor surface.
   (B)   A meter socket shall have only one feed to serve main disconnect switches or panels.
   (C)   (1)   Neither aluminum nor Type T.W.R. or RH wire shall be used for service entrance conductors. If a meter requires three or four wires, the minimum size of conductors shall be number two; provided that the minimum size for private residences shall be number four.
      (2)   Whenever existing meters or panel boards are changed or relocated, conductors shall be increased to meet the minimum requirements. Service conduits shall be fastened by straps and screws. Use of nails for such purpose is prohibited. Straps and screws shall be galvanized or cadium plated where exposed to weather.
   (D)   The minimum size of grounding conductor from meter socket to earth shall be number four stranded. Insulated aluminum conduit may be used only if all fittings are aluminum and all conductors installed in conduit are insulated.
   (E)   PVC-Duit-Allowed for service entrance, provided conduit is strapped with a two-hole device every three feet.
   (F)   Any device installed on the exterior of the structure or vertically over conductive flooring shall be protected by ground fault interrupter (GFI).
   (G)   All coin operated machines using electricity for power source shall be grounded in an approved manner.
   (H)   (1)   Electric tubing shall be permitted for meter service only where not exposed to weather.
      (2)   All grounding shall be accomplished through an Underwriter's Laboratory approved driven ground rod and clamp.
(`95 Code, § 5-3-42) Penalty, see § 10.99