LIFT, ESCALATOR & BUILDING MANAGEMENT SYSTEM

LIFT, ESCALATOR & BUILDING MANAGEMENT SYSTEM

1. Mechanical transportation in general association with modern buildings and developments

   • LIFTS
   • ESCALATORS
   • TRAVELATORS/MOVING PAVEMENTS

2. LIFTS

   • Used to move goods or people vertically. Considered as requirements in building over four storey
     • LOCATION OF LIFTS
       • Located at easy access location for user. Grouping of lifts is essential for user convenience
     • LIFT PERFORMANCE
       • Acceleration
       • Retardation
       • Car Speed
       • Spped of door operation
       • Stability of speed
   • SPEED OF LIFTS
   • ELECTRONIC/ROPED LIFT
     • Control system
     • Electronic Motor
       • Located in lift motor room, anti-vibration mountings
     • Sheave
     • Counterweight
     • Guide Rails

3. ROPING

   • High tensile steel ropes driven through traction sheaves. A system of pulleys and a counterweight
     • SINGLE WRAP 1:1
       • Simplest but prone to slippage if subject heavy
     • SINGLE WRAP 2:1
       • Number of pulleys and wrapping ratios increase to improve resistance
     • SINGLE WRAP 3:1
       • More pulleys used

4. ACTIVE ROLLER GUIDE

   • Reduce lateral vibration
     • Detect vibration and cancel the vibration with optimal controlled electromagnetic force

5. LIFT DOOR

   • 1. Fitted to lift car. 2. Fitted to landing
     • Multi Beam Sensor Door
       • Prevent passegers from being caught

6. MACHINE AND MOTOR ROOM

   • Contain winding gear, traction sheave, control panel overspeed governer