This code provides guidelines for the selection, installation, and maintenance of temporary electrical systems on building construction sites. It emphasizes personnel safety from electrical hazards, covering supply systems, circuit protection, equipment installation, earthing, inspection, and maintenance procedures.
Provides recommendations for safety related to electrical installations, selection, installation, and maintenance of electrical equipment on construction sites.
Quick Reference Values
Maximum voltage for portable hand lamps24 V
Maximum voltage for portable tools240 V (with ELCB/RCCB protection)
Recommended sensitivity for ELCB/RCCB30 mA
Minimum clearance of lowest conductor (overhead line) from ground across a street5.8 m
Minimum clearance of lowest conductor (overhead line) along a street5.5 m
Minimum depth for underground cables (direct buried)0.6 m
Practical Notes
The harsh environment of construction sites necessitates robust mechanical protection for all cables and equipment.
Effective earthing and the mandatory use of ELCBs/RCCBs (30mA sensitivity) on all socket-outlet circuits are critical for preventing electric shock.
Regular inspection and testing by a competent person is essential as site conditions, layouts, and electrical loads change frequently.