IS 14665:1999 Part 2/Sec 1 is the Indian Standard (BIS) for installation, operation and maintenance of electric passenger and goods lifts — part 2: constructional and installation requirements, section 1: general provisions. 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 general constructional and installation requirements for electric passenger and goods 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.
IS 14665 Part 2 Section 1 (1999) provides Code of Practice for Installation, Operation and Maintenance of Electric Passenger and Goods Lifts — Part 2: Constructional and Installation Requirements, Section 1: General Provisions. India's standard for elevator design + installation in commercial, residential, hospital + transit buildings.
Use when: specifying lifts in multi-storey buildings; passenger + freight lifts; commercial + residential lift design.
Lift categories: - Passenger: people transport in residential / commercial - Goods (freight): cargo transport in warehouses / industrial - Service: combined passenger + light freight - Hospital: stretcher-friendly + reliability-critical - Glass / scenic: premium aesthetic
Capacities: - 4-13 person passenger: 320-1000 kg - Hospital lift: 1000-1600 kg + stretcher size - Freight: 1500-5000 kg - Speed: 0.5-2.5 m/s (residential); higher for transit
Key components (per IS 14665): - Car (cabin): structural + interior - Counterweight: balances car weight - Hoistway (shaft): enclosed travel path - Machine room: motor + controller (top or side) - Door system: car + landing doors with safety - Safety systems: governors, brakes, overload, emergency - Control system: electric / electronic
Critical safety systems: - Governor (over-speed prevention) - Safety gear (mechanical brake) - Emergency stop - Door interlocks - Overload sensors - Fire-fighters' lift (per IS 14665)
Installation: - Hoistway construction per code - Machine room provisions - Electrical supply + backup - Door system + landing arrangement - Safety systems verification - Acceptance testing before service
Quality + acceptance: - Manufacturer certification - Installer qualification - Government certification (state lift inspector) - Periodic compulsory inspection - Annual maintenance contract
Cabin dimensions (typical): - 4-person: 1100 × 1400 mm - 6-person: 1300 × 1500 mm - 8-person: 1500 × 1700 mm - 13-person: 1900 × 2100 mm - Hospital: 1500 × 2400 mm (stretcher)
Hoistway dimensions: - 4-person: 1400 × 1700 mm - 6-person: 1600 × 1800 mm - 8-person: 1900 × 2000 mm - Hospital: 2000 × 2700 mm
Speed selection: - 4-storey residential: 0.5-0.75 m/s - 8-storey commercial: 1.0-1.5 m/s - High-rise (15+ storey): 2.0-3.0 m/s+ - Express (skyscraper): 4-7 m/s
Safety thresholds: - Over-speed: governor trips at 1.3 × rated speed - Brake stopping: < 2.5 m of cabin movement - Door re-open: photoelectric sensor + edge sensor - Emergency lighting: 60+ min battery backup - Phone / intercom: working at all times
Maintenance schedule: - Daily: visual inspection - Weekly: safety system test - Monthly: comprehensive mechanical / electrical check - Annual: detailed inspection (government inspector) - 5-year: major refurbishment - 25-30 year design life; major rebuild
Fire safety: - Fire-fighters' lift in high-rise (per IS 14665) - Fire-resistant door materials - Emergency power from generator - Hoistway smoke / fire compartmentation
1. No regular maintenance → breakdowns + safety issues. 2. Safety system tests skipped → potential accidents. 3. Door interlocks bypass → fall risk. 4. Overload sensors not calibrated → overloading accidents. 5. Emergency phone not working → trapped users helpless. 6. Earthquake design ignored → tremor damage. 7. Fire-fighters' lift not specified → high-rise non-compliance. 8. Inadequate hoistway smoke / fire separation → spread risk. 9. Power backup absent → users stuck. 10. Annual inspection skipped → government compliance issue.
1. Building design includes lift specifications. 2. Manufacturer + installer qualified. 3. Installation per IS 14665. 4. Commissioning + safety testing. 5. Government certification. 6. Operation + daily / weekly / monthly maintenance. 7. Annual inspection + comprehensive maintenance. 8. Service life 25-30 years; major refurbishment then.
IS 14665 Part 2/Sec 1 is fundamental for India's multi-storey buildings + commercial / institutional infrastructure.
| 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 |