IS 17462 Part 1

: 2020

Safety Rules for the Construction and Installation of Lifts — Lifts for the Transport of Persons and Goods — Part 1: Electric Lifts

CurrentSpecializedSafety CodeBIMMEP · Lifts, Escalators and Mechanical Handling
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This standard specifies the safety rules for the construction and installation of new permanently installed electric lifts, with traction or positive drive, serving defined landing levels. It covers requirements for the complete lift system, including the well, machinery, car, doors, and safety devices to protect persons and goods against risks of accidents during operation, maintenance, and inspection. This code is harmonized with the European standard EN 81-20.

Specifies safety rules for the construction and installation of new electric passenger and goods lifts.

Quick Reference Values
Minimum internal car width1100 mm
Minimum internal car depth2100 mm
Minimum clear door opening width900 mm
Maximum changeover time to secondary power supply60 s
Minimum duration of secondary power supply2 h
Minimum fire resistance rating for lift landing doors60 min
Key Formulas
Calculation of stopping distance for safety gear
Calculation of buffer compression and retardation
Determination of traction capacity based on rope friction
Calculation of forces on guide rails during safety gear operation
Practical Notes
This standard is crucial for high-rise buildings and must be read in conjunction with the National Building Code (Part 4: Fire and Life Safety).
The evacuation lift is distinct from a 'Fireman's Lift', though they can be a combined unit if all requirements of both standards are met.
Effective implementation requires close coordination between the architect, fire consultant, MEP engineer, and the lift manufacturer to ensure all protective measures and system interfaces are correctly designed and installed.