Elevators at Metro Station
#1

Elevators, Escalators and Stairs at Metro Station

Elevators
(a)Elevators with a carrying capacity of not less than 10 Users and designed to accommodate wheel chairs shall be provided. They shall be suitable for service as public service/goods elevators and shall be rated for a minimum of 180 movements/hour.

(b)Elevators shall comply with NBC-2005 and BS-EN 81 and other appropriate international codes and standards and relevant statutory requirements. Elevators shall be type Class A for passenger loading and shall comply with NFPA 101 Fire Life Safety requirements.

©The elevators shall comply fully with the National Policy for Persons with Disabilities – 2006.

(d)During a fire situation, the use of elevators shall be prohibited.

(e)Elevators shall be electric traction type and machine-room less arrangement with the traction drive motor and controls mounted within the hoist way of the Elevator at the top landing.

(f)Elevators shall comply with BS 7255 – “Code of Practice for safe working of lifts”, or equivalent to allow for the emergency release of Users at nearest landing. This shall include:

(i)an alarm button at low level in elevator and two way speech communication with Station control both being controlled from a supply independent of elevator main supply; and
(ii)emergency lighting and intercom for a duration of 3 hours.

(g)Elevators shall have Variable Voltage and Variable Frequency (VVVF) drive system.

(h)Elevators shall be provided with Lift safety instructions announcement system to facilitate use of elevators by “visually – impaired” commuters.

(i)Elevators shall be equipped with Automatic Rescue Device and electrically operated proximity detector device(s) installed on the leading edge of the car doors to create a three dimensional zone of protection for the entire height of the door opening.

(j)Elevators shall have minimum opening dimensions of 900 mm x 2100 mm and shall be rated for a minimum 1000 kg load. Elevator doors shall be heavy duty and all accessories shall be of the “anti vandal” type. An intercom system shall be provided between the Elevator and the Station Control Room (SCR) for emergency communication.

(k)Elevators with single access shall include a laminated framed safety mirror in the rear panel of at least half of the elevator height, for ease of reversing of wheel chairs from the elevators.

(l)The control system shall be microprocessor based to control the Elevator position and operating sequence logic and have the facility for transmitting function and fault data. Monitoring and control of the Elevator operation shall be through the system of Station Management Systems (SMS).

(m)Operating panel buttons shall be a minimum of 50 mm diameter and shall also have the operation of the button superimposed on it in Braille. A ventilation opening or duct to open air of area 0.3 m² or, 3.5 % of the cross-section of the elevator shaft, whichever is greater shall be provided at the top of each elevator shaft.

(n)The ventilation openings shall have a minimum free area of 0.3 m², or 3.5% of the cross section of the elevator shaft, whichever is more.

(o)Additional codes and standards applicable, are as follows:
IS:
14665; IS: 15330; IS: 7759; IS: 1860; IS: 15785:
“Guidelines and space standard for Barrier free Built Environment for Disabled and Elderly Persons” published by the CPWD (Central Public Works Department) India.
Guidelinesfor safety of elevator circulated vide A. V. series circular no. 822, issued by the Ministry of Urban Development and Poverty Alleviation, Govt. of India vide their letter no. C-31011/1/2001-AVII, dated 7.12.2001.

Front Desk Architects
www.frontdesk.co.in
Email: architect@frontdesk.co.in , Tel: +91 0141 2743536
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)