Reference Specifications for Civil Engineering Work 2001



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6.4Service Conduits


Provide conduits that pass inspections and tests required by the appropriate Service Authority.

Materials

Electricity conduit: Supply conduit to comply with the “Heavy Duty” requirements of AS 2053. Also refer to Energex publication titled Underground Distribution Construction.

Gas conduit: Supply conduit to comply with AS 4130.

Water conduit: Supply conduit to comply with AS 1477.

Telecommunications conduit: Supply white uPVC conduit to comply with AS 1477. Class PN 9 shall be used for 80 mm and 100 mm diameter, and class PN 12 for 65 mm and smaller diameters.

Installation

UPVC pipe systems: Conform to the installation requirements of AS 2032 except where specified herein.

Polyethylene pipe systems: Conform to the installation requirements of AS 2033 except where specified herein.

Bedding material: Bedding sand consisting of clean sharp washed river sand or 5 - 7 mm nominal size screenings (recycled concrete or clean crushed rock) free of salt, clay or organic contaminants. Comply with Table 6.1 for grading requirements. If the relevant Service Authority requires a different form of bedding material, provide that bedding material.




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