A. New Work: For all new work, wiring shall be installed in heavy wall conduit, electric metallic tubing, or surface metal raceways except that it shall be permissible to use as an extension of flexible metal conduit, greenfield or equal, not more than six feet (6') in length where flexible connectors are necessary. Conduits shall be securely supported, independent of outlet boxes and cabinets. Armored cable, such as BX, shall not be used. All raceway joints shall be made tight and shall provide a continuous electrical circuit for grounding purposes. Greenfield may be used for extensions to existing wiring only where existing walls are finished and not accessible to conduit and, when exposed, a maximum of six feet (6') in length is allowed.
PVC is allowed for underground wiring exterior to the building perimeter at depths required in NEC; provided vertical extensions are heavy wall metal material.
B. Conduit In Concrete: Heavy wall galvanized conduit, intermediate metal conduit, or PVC conduit shall be used when concealed within all concrete construction.
C. Fittings: All fittings shall be either slip ring, compression nut type, or set screw type connectors. Crimp type fittings are prohibited.
D. Weather Exposure: All raceways exposed to the weather shall be rigid heavy wall aluminum or galvanized and IMC, or, if specific permissions granted, PVC.
E. Water Meter Reader: One-half inch (1/2") thin wall electrical metallic tubing shall be installed from the water meter location to the approved location of the outside water meter reader. (Ord. 2015-3-053, 3-16-2015)