This standard specifies the requirements for the materials, design, manufacture, and testing of precast prestressed concrete poles used for street lighting. It defines dimensions, working loads, safety factors, and specific transverse strength tests to ensure durability against wind loads and environmental exposure.
Precast Prestressed Concrete Street Lighting Poles
Quick Reference Values
Minimum grade of concreteM 40
Minimum clear cover to prestressing steel20 mm
Factor of safety against ultimate failure2.0
Nominal planting depth1/6th of overall pole length
Practical Notes
Lifting and handling of poles must only be done at designated pick-up points to prevent the induction of reverse bending moments and subsequent cracking.
Planting depth must be rigorously adhered to on-site to ensure the intended foundation fixity and resistance to wind load overturning.
Adequate concrete strength must be achieved and verified prior to the transfer of prestress to avoid anchorage failure.