IS 14665:1999 Part 2/Sec 3 is the Indian Standard (BIS) for installation, operation and maintenance of electric passenger and goods lifts — part 2: constructional and installation requirements, section 3: machine room and pulley room. This standard specifies the constructional and installation requirements for doors and gates on electric passenger and goods lifts. It focuses on critical safety features like locking mechanisms, door operation forces, dimensional clearances, and fire resistance to ensure passenger safety and reliable operation.
Specifies requirements for the design and construction of machine rooms and pulley rooms for electric lifts (commonly referenced for installations from its period).
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Normal Car Illumination | Specifies 'adequate illumination' without a numeric value. | Minimum 100 lux at floor level. | EN 81-20:2020 |
| Emergency Car Illumination | Minimum 0.2 lux for 1 hour. | Minimum 5 lux for 1 hour on the emergency power supply. | EN 81-20:2020 |
| Buffer Type Speed Threshold | Energy dissipation type required for speeds > 1.0 m/s. | Energy dissipation type required for speeds > 1.0 m/s. | EN 81-20:2020 |
| Kinetic Energy of Closing Doors | Shall not exceed 10 J. | Shall not exceed 10 J. | EN 81-20:2020 |
| Car Ventilation Area | Effective area of not less than 1% of the car floor area. | Effective area of not less than 1% of the available car floor area. | EN 81-20:2020 |
| Pit Refuge Space (Standing Position) | Specifies minimum clearances (e.g., 500 mm under car on buffer), not a volumetric space. | Requires a defined volume of at least 0.4 m x 0.5 m (base) x 2.0 m (height). | EN 81-20:2020 |
| Suspension Ropes Safety Factor (3+ ropes) | Minimum factor of 12. | Minimum factor of 12 (derived from calculation methods). | EN 81-20:2020 |