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IS 14665-1 (2000): Electric Traction Lifts, Part 1: Outline

Dimensions(Superseding IS 3534:1976) [ETD 25: Lift and
Escalators]

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IS 14665 (Part 1) :2000

(Superseding

IS 3534:

1979)

( Reaffirmed 2005 )

Indian Standard

ELECTRIC TRACTION LIFTS

PART 1 GUIDELINES FOR OUTLINE DIMENSIONS OF
PASSENGER, GOODS, SERVICE AND HOSPITAL LIFTS

ICS

91.140.90

@ BIS 2000

BUREAU

OF

IN DIAN

STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002
October

2000

Price Group

Lifts and Escalators Sectional Committee, ETD 25

FOREWORD
This Indian Standard (Part 1) was adopted by the Bureau of Indian Standards, after the draft finalized by the
Lifts and Escalators Sectional Committee had been approved by the Electrotechnical Division Council.
The standard on this subject was originally published as IS 3534 in 1966 and was revised in 1976. This new
series of standards is being brought out to reflect the latest trends in lift industry at National and International
level. A detailed study of data collected over a long period has been made before preparing this standard. Every
effort has been made to present the guideline in a simple form and it is hoped that the information furnished
would be helpful to architects, consultants and lift makers.
The net internal areas are kept as close as possible to those specified in 5.1 of IS 14665 (Part 3/See 1): 2000
and width and depth are generally chosen as modular dimensions in steps of 100 mm.
The dimensions given in Table 2 for goods lifts are for normal applications. For special requirements, the design
can be-modified to meet the requirements by mutual agreement between the purchaser and the supplier.
The clear inside dimensions should be measured at a height of one metre from the finished floor of the lift car
from panel to panel.
The pit depth and the dimensions of headrooms suggested in this standard will satisfy all the provisions of 4.5
of IS 14665 (Part 2/See 1) :2000 with regard to clearance and run by for car and counterweight.
The Composition.of technical committee responsible for the preparation of this standard is given at Annex A.
This standard is one among the series of standards finalized by the Lifts and Escalators Sectional Committee as
detailed below. This was done with a view to align the Indian Standards with the latest developments in the field
of Lifts and Escalators and also to align the standards with the European Norms on Lifts and Escalators EN 81.
Moreover, these standards are published with a view to have a uniform code for electric traction lifts all over
the country, where presently different rules are being followed by different states:
New IS Series

IS 14665 Electric traction lifts: Part 1

Guidelines for outline dimensions of
passenger, goods, service and hospital lifts

Superseding

IS 3534:1979 Outline dimensions of electric lifts

(first revision)

Part 2 Code of practice for installation,

operation and maintenance
Section 1 Passenger and goods lifts

IS 1860: 1980 Code of practice for installation,

operation and maintenance of passenger and goods
lifts (Jrst revision)

Section 2 Service lifts

IS 6620: 1972 Code of practice for installation,

operation and maintenance of service lifts

Part 3 Safety rules

Section 1 Passenger and goods lifts
Section 2 Service lifts

IS 4666:1980 Electric passenger and goods lifts

IS 6383:1971 Electiicservice lifts

Part 4 Components
Section 1 Lift buffers

IS 9803:1981 Buffers for electric passenger and

goods lifts
(Continued

on third cover)

IS 14665 (Part 1): 2000

Indian Standard

ELECTRIC TRACTION LIFTS

PART 1 GUIDELINES FOR OUTLINE DIMENSIONS OF
PASSENGER, GOODS, SERVICE AND HOSPITAL LIFTS

.1 SCOPE
This standard specifies outline dimensions of lift cars
for passenger, goods, service and hospital lifts. The
corresponding well sizes, pit depth, headroom,
machine-room details and type of car and landing
doors are also specified.
2 REFERENCES
The following Indian Standards are necessary adjuncts
to this standard:
Title
1SNo.
14665
Electric traction lifts: Part 2 Code
(Part 2 / Sec 1): of practice for installation, opera2000
tion and maintenance, Section 1
Passenger and goods lifts
(Part 3 / Sec 1): Part 3 Safety rules, Section 1 Pas2000
senger and goods lifts
(Part 4/ Sec 4) : Part 4 Components, Section 4 Lift,
safety gears and governors
2000

normal practice. In special cases, the doors may be

accommodated in a recess in the front wall, for which
prior consultation shall be made with the lift
manufacturer.
5 PLAN DIMENSIONS
5.1 All plan dimensions of lift well are the minimum
clear plumb sizes. The architect, in conjunction with
the builder, shall ensure that adequate tolerances are
included in the building design so that the specified
minimum clear pIumb dimensions are obtained in the
finished work.
NOTE The words clear plumb dimensions
particularly in case of high rise buildings.

should be noted

5.2 Rough openings in concrete or brick walls to

accommodate landing doors depend on design of
architrave. It is advisable to provide sufficient
allowances in rough opening width to allow for
alignment errors of openings at various landings.
5.3 Where more than one lift is located in a common
well, a minimum allowance of 100 mm for separator
beams shall be made in the widths shown in Tables 1
to 4.

3 TERMINOLOGY

3.1 For the purpose of this standard, the following

definitions shall apply.
3.2 Passenger Lift A lift designed for the transport
of passengers.

5.4 Where governor operated counterweight safety is

required under conditions stipulated in 3.1.2 of
IS 14665 (Part 4/See 4), the tabular values should be
revised in consultation with the lift manufacturer.

3.3 Goods Lift A lift designed primarily for the

transport of goods but which may carry a lift attendant
or other person necessary for the unloading and
loading of goods.

5.5 For outline dimensions of lifts having more than

one car entrance, lift manufacturer should be
consulted.

3.4 Service Lift (Dumb-Waiter) A lift with a car

which moves in guides in a vertical direction; has net
floor area of 1 m2, total inside height of 1.25 m,
whether m not provided with fixed or removable
shelves; and capacity not exceeding 250 kg; and is
exclusively used for carrying materials and shall not
carry any person.

6 OUTLINE DIMENSIONS
6.1 The outline dimensions of machine-room, pit
depth, total headroom, overhead distance and sill for
four classes of lifts to which the standard applies are
specified in Tables 1 to 4 as indicated below:
Passenger lifts
Tables 1 and 1A
Goods lifts
Table 2
Hospital lifts
Table 3
Table 4
Service lifts

3.5 Hospital Lift A lift normally installed in a

hospital/dispensary/clinic
and
designed
to
accommodate one number bed/stretcher along its
depth, with sufficient space around to carry a
minimum of three attendants in addition to the lift
operator.

6.2 Travel

4 GENERAL

The tables have been established for a maximum travel

of 30 m. For travels above 30 m, the lift manufacturer
should be consulted.

The dimensions of well have been chosen to

accommodate the doors inside the welI which is the
1

IS 14665 (Part 1): 2000

6.3 Pit

6A Minimum F1oorto Floor Height

The pit depth of the lifts will normally accommodate

compensating chains. If compensating ropes are
required, pit depth shall be increased for all loads and
speeds and lift manufacturer should be consulted.

Minimum floor to floor height for landings on same

side for horizontally sliding door is~+750 mm and for
vertically biparting doors is 1.5~+250 mm, where j_
is clear entrance height in mm.

IS 14665 (Part 1): 2000

Table 1 Recommended Dimensions of Passenger Lifts
(Clauses 5.3 and 6.1)
AH dimensions in millimetres.

------!---

!:

.-. ._ ._ ._,

-------

----

-------c
~

Load
~$
(1)
4
6

8
10
13
16
20

CarSide
A

f
(2)
272
408

544
680
8S4
1088
1360

(:)
1100

LiftWell
3
(:)
700

1100

Iwo

1300
1300
2ot30
2000
2000

1100
1350
1100
1300
1500

Entrance

\
(:)
1900

(:)
1300

1900

1700

1900
1900
2500
2500
2500

1900
2 ICKl
1900
2100
2400

(?)

700(lfin)
700 (Min)
800
800
900
1000
1000

IS 14665(Part 1): 2000

Table 1A Recommended Dimensions of Pit, Overhead and Machine-Room for Passenger Lifts
(Clauses 5.3 artd6.1)
Alldimensions in millimetres.

up to

Speedin m/s
Pit depth
Overhead
Machine-room
Depth
Machine-room
Width

1350
4200
D+ 2000
c+l

>1.00S

>0.70S

0.70

>1.50S

1.00

1.50

1.75

1500
4250

1600
4800

2150
4800
D+2500

COO

C+ 1200

>1.75<
2.00

>2.00<
2.50

2200
5200

2500
5400

C+ 1500

NOTES

1 The total overhead dimension has been calculated on the basis of car height of 2.3 m,
2

In case of manually operated doors, clear entrance will be reduced by the amount of projection of handle on the landlng door.

3 All dimensions given above for lifts having centre opening power operated doors with counterweight at rear, are recommended
dimensions primarily for architects and building planners. Any variations mutually agreed between manufacturer and purchaser are
permitted. However, variation in:
i) Car inside dimensions

shall be within the maximum area limits specified in 5 of IS 14665 (Part 3/See 1).

ii) Entrance width on higher side ispermitted.

iii) Entrance

width on lower side is permitted up to ltX3 mm subject to minimum of 700 mm.

4 Dimensions of pit depth and overhead may differ in practice as per individual manufacturers design depending upon load, speed
and drive. Recommended dimensions for pit depth, overhead and machine-room for different lift speeds are given in Table 1A. However,
the pit depth and overhead shall be such as to conform to the requirements of bottom clearance and top clearance as per 4.5 of the
IS 14665 (Part 2/See 1).

IS 14665 (Part 1) :2000

Table 2 Recommended Dimensions of Goods Lifts
(For Speeds Up to 0.5 trds)
( Foreword, Clauses 5.3 and 6.1)
All dimensions in millimetres.

~-=-%+r--f

OP

.ANO IING

k-

--4

L1

1-

MACHtNE-ROOM

=C+2000

ELEVATION
Load
kg
(1)

500
1000
1500
2000
2500
3000
4000
5000

CarInside

Lift Well

Entrance

~
(2)
1100
1400
1700
1700
2000
2000
2500
2500

(3)
1200
1800
2000
2500
2500
3fJoo
3000
3600

(4)
1900
2300
2600
2600
2900
2900
3400
3400

(5)
1500
2100
2300
2800
2800
3300
3300
3900

(:)
1100
1400
1700
1700
2000
2000
2500
2500

NOTES

1 The width of machine-room shall be equal to the lift well w.dth C subject to minimum of 2500 mm.
2

The total headroom has been calculated on the basis of a car height of 2.2 m.

3 Clear entrance width 1? is based on vertical lifting car-door and vertical biparting landing doors. For collapsible mid-bar doors the
clear entrance width will be reduced by 200 mm (maximum 1800 mm).
4

All dimensions given above are recommended dimensions primarily for architects and building planners.

agreed ~tween manufa@rer and purch=r are permitted.

area limits sfxcified in [S 14665 (Part 3/See 1).

Any variations mutually

However. vafiation in CUKinside dimensions shall ~ within the maximum

5 Dimensions of pit depth and overhead may differ in practice as per individual manufacturers design depending upon load, speed
and drive. However, the pit depth and overhead shall be such as to conform to the requirem~nts of bottom clearance and top clearance
of 1S 14665 (Part 2/See I).

IS 14665 (Part 1) :2000

Table 3 Recommended Dimensions of Hospital Lifts
(For Speeds Up to 1.5 M/s)
(Clauses 5.3 and 6.1)
All dimensions in millimetres.

LAN DING

TRAVEL

>

-_-L
BOTTOM

Pmw4

LANDING

ELEVATION
Load
\

f
Persons

kg
(2)
1020
1360
1768

(1)
15
20
26

c
A
(3)
1000
1300
1600

Carhide

Lift Well

t
(:)
1800
2200
2400

(:)
2400
2400
2400

Entrance
\
(:)
3000
3000
3000

(?)
800
1200
1200

NOTES

1 The total headroom has been calculated on basis of cm height of 2.2 m.

2

In the case of manually-operated

doors, clear entrance will be redueed by the amount of projection of handle on the landing door.

3 Although 15 persons capacity lift is not standard one, this is included to cover lifts of smaller capacity which can be used in small
hospitals.
4 All dimensions given above are recommended dimensions primarily for architects and building planners. Any variations [mutually
ngreed between manufacturer and purchaser are permitted. However, variation in car inside dimensions shall be within the maximum
area limits specified in 1S 14665 (Part 3/See 1).
5 Dimensions of pit depth wrd overhead may differ in practice as per individual manufacturers design depending upon load, speed
and drive. However, the pit depth and overhead shall be such as to conform to the requirements of bottom clearance and top clcariuree
of IS 14665 (Part 2/See 1).

IS 14665 (Part 1) :2000

Table 4 Recommended Dimensions of Service Lifts
(For Speeds Up to 0.5 rrt/s)
(Claases 5.3 and 6. 1)
Alldimensions in millimetres.

T
120iJ

L.-

------ 1

d-

1-

E~

t-A--

TRAVEL

ELEVATION
Load
h

t
kg
(1)
100

150
200
250

Car Inside
\
A
(~)
700

81XI
9txt
1000

Lift Well

~
(3)

700
800
900
1000

(4)

800
900
1(X)O
1200

r-----y
c
(5)

1 2eo
1300
1400
1500

Entrance
(6)

900
10IXI
1 ltxl
1200

(:)

700
800
900
1000

NOTE Entrmrce width E is based on assumption of provision of vertical biparting doors (no car door is normally provided).

IS 14665 (Part 1): 2000

ANNEX A
(Foreword)
COMMITTEE COMPOSITION
Lift and Escalator Sectional Committee, ET 25
Representing

Chairman
SHRID. H. PATIL
Members
PRESICJENT
PRESIDENT
SHRJS.V. KAMAT
SHRIP. M. TIPNIS(Alremare)
SHRIS. N. SAREEN
SHRIP. GUJRAL(Ahernate)
SHR[M. I. KHUMRI
SHRIK. KFUSHNAMURTHY
NAIK
SHRIM. S. BASAVARJU
(Alrerna~e)
SHRIS. KULASEKHARAN
SHRIN. RANGASWAMY
(Alternate)
SHRi D. K. SEN
SHRIS. K. MITRA (Alternate)
SHRIM. S.-BHATTACHARJEE
SHRISANATANCHATTERJEE
(Ahemafe)
CE(E)
SE (E) DCEVI (Ahemate)
SHRI S. K. fCMLA
SHRIB. K. BEHL(Alternate)
SHRI 1. Q. NAJAM
SHRIN. SUBRAMANAN
SHRIA. K. RAI (Afrerrrate)
SHRIP. K. BANKA
SHRI JAGATMOHAN(Al[ernaie)
SHRIP. GURUMOORTHY
SHRIJ. SWARAMAN(Alfernate)
SHRIK. L. GROVER
SHRIAWNASHAGGARWAL(Alternate)
S~RI A. S. HERWADKAR
DR G. M. MALKANI/SHRIS. P. RAO (A/fernafe)
SHR[K. M. BHATIA,
Director (Elec tech)

Maharashtra Public Works Department

Practicing Engineers, Architects & Town Planners, Mumbai
Builderrs Association of India, Mumbai
Bharat Bijlee Ltd. Mumbai

Central Electricity Authority, New Delhi

Govt. of Gujarat (IW), Energy & Petrochemical Dept. Gandhinagar
Chief Electrical Inspector (Kamataka), Bangalore
Chief Electrical Inspector (Tamii Nadu), Chennai
Chief Electrical Inspector (West Bengal), Calcutta
Central Mechanical Engineering Research Institute, Durgapur
Central Public Works Department, New Delhi
Ministry of Defence, New Delhi
Maharastra Public Works Department, Pune
Dkectorate General of Supplies & Disposal% New Delhi
ECE Industris Ltd, Ghaziabad
Kone Elevator In&la Ltd,.Chennai
Office of the Labour Commissioner,

Delhi Administration,

OTIS Elevator Co (lndia) Ltd, Mumabi

Director General, BIS (lZx-o&cio Member)

Member-Secretary
SHRIG. BABU
Deputy Director (Elec tech),

BIS

New Delhi

(Continued from second cover)

New IS Series

Section 2 Lift guide rails and guide

shoes

Superseding

IS 10191 : 1982 Car and counter weight guide

rails, guide rail supports and fastenings for lifts
and
IS 11615 : 1986 Car and counter weight guide
shoes for electric passenger and goods lifts

Section 3 Lift carframe, car, counter

weight and suspension

IS 11706 : 1986 General requirements for

car-frame for electric passengers and goods lift

Section 4 Lift safety gears and

governors

IS 9878 : 1981 Safety gears and governors for

electric passenger and goods lifts

Seetion 5 Lift retiring cam

IS 10448:1983
goods lifts

Section 6 Lifts doors and locking

devices and contacts

IS 7759 : 1975 Lift door Ioeking devices and

contacts

Retiring cam for passenger and

and
IS 11633:1986 Lift doors
Section 7 Lift machines and brakes

IS 10913:1984 Brakes for electric passenger and

goods lifts

Section 8 Lift wire ropes

Section 9 Controller and operating

devices for lifts

Part 5 Inspection manual

Details about installation, maintenance and operation of electric traction lifts, passenger and service lifts are
covered in IS 14665 (Part 2/See 1 and 2). The constructional and safety aspects of these types of lifts are given
in (Part 3/Section 1 and 2).
For.the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with
IS 2:1960 Rules for rounding off numerical values (revised). The number of significant places retained in
the rounded off value should be the same as that of the specified value in the standard.

Bureau of Indian Standards

BUS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote
harmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.
Copyright

BIS has the copyright of all its publications. No part. of these publications may be reproduced in any form
without the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
BIS Catalogue and Standards: Monthly Additions.

i,

This Indian Standard has been developed from Doc : No. ETD 25 ~4098 ).

Amendments

Issued Since Publication

\(

Amend No.

Text Affected

Date of Issue

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