This standard specifies the requirements for materials, dimensions, manufacturing, and testing of asbestos cement conduits, troughs, and associated fittings. These products were intended for the protection of electrical power and communication cables laid underground or on surfaces.
Asbestos Cement Cable Conduits and Troughs
Quick Reference Values
Maximum water absorption (average)28% by mass
Minimum transverse crushing load (100 mm conduit)2.0 kN/m
Minimum hydraulic test pressure0.1 N/mm² for 2 minutes
Maximum deviation on straightness per metre length3 mm
Practical Notes
This standard has been officially WITHDRAWN by BIS and is obsolete.
The use of asbestos-containing materials is now highly regulated or banned in India and worldwide due to severe health risks (carcinogenic).
Engineers must use modern, safer alternatives like PVC (IS 9537), HDPE, or metallic conduits for cable protection.