IS 1332:1986 is the Indian Standard (BIS) for precast reinforced concrete street lighting poles. This standard specifies the requirements and methods of test for precast reinforced concrete poles used for street lighting. It outlines material specifications, dimensional tolerances, manufacturing practices, and structural testing procedures, particularly the transverse strength test.
precast reinforced concrete street lighting poles
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Minimum Concrete Compressive Strength | M25 (25 N/mm²) | C30/37 (30 N/mm² cylinder strength) | EN 40-4:2013 (typical minimum) |
| Minimum Cement Content | 360 kg/m³ | No absolute minimum; depends on strength and durability requirements for a given exposure class (typically 300-340 kg/m³ for moderate exposure). | EN 40-4 (via EN 206) |
| Nominal Concrete Cover (Mild/Moderate Exposure) | 20 mm | 25-30 mm (for XC4 exposure, 50-year life, C30/37 concrete) | EN 40-4 (via EN 1992-1-1) |
| Design Load Basis | Prescribed transverse concentrated load (e.g., 100 kgf) at 0.5m from top. | Calculated characteristic wind pressure on pole and luminaire surfaces. | EN 40-3-3 (referenced by EN 40-4) |
| Permissible Crack Width (Serviceability) | No visible cracking under test load. | Defined limit, typically 0.3 mm for reinforced concrete in most environments. | EN 40-4 (via EN 1992-1-1) |
| Maximum Allowable Deflection | Not specified, but permanent set is limited to 15% of max deflection. | Typically limited to a fraction of pole height (e.g., h/50 or h/30) under specified wind loads, plus separate checks for vibration. | EN 40-3-1 |