Protection from shear or tensile stresses

(a)Anywhere plastic Pipe is connected to a metal tee and anywhere plastic Pipe enters or exits a Conduit, it shall be supported by undisturbed or well-compacted soil. Plastic Pipe 2 inches or less in nominal diameter shall be protected from shear by a shear protection sleeve. Shear protection sleeves shall be secured to the metal tee or Conduit.#

(b)Plastic Pipe pulled or plowed-in during the installation process shall be given sufficient time to cool and contract to its original length prior to joining or sufficient slack shall be placed in the plastic Pipe.#

(c)Any portion of plastic Pipe which spans disturbed earth shall be protected by compaction of the soil under the plastic Pipe, or by other means.#