HAR 6-77-102
HAR 6-77-102 Installation of plastic pipe
level.#
(b)Plastic pipe that is installed in a vault or any other below grade enclosure must be completely encased in gas-tight metal pipe and fittings that are adequately protected from corrosion.#
(c)Plastic pipe must be installed so as to minimize shear or tensile stresses.#
(d)Thermoplastic pipe that is not encased must have a minimum wall thickness of 0.090 inches, except that pipe with an outside diameter of 0.875 inches or less may have a minimum wall thickness of 0.062 inches.#
(e)Plastic pipe that is not encased must have an electrically conductive wire or other means of locating the pipe while it is underground.#
(f)Plastic pipe that is being encased must be inserted into the casing pipe in a manner that will protect the plastic. The leading end of the plastic must be closed before insertion. [Eff ] (Auth: HRS '269-6) (Imp: 49#