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99/702257 DC : DRAFT JAN 1999

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

PREN 81-7 - SAFETY RULES FOR THE CONSTRUCTION AND INSTALLATION OF LIFTS AND SERVICE LIFTS - PART 7: RACK AND PINION LIFTS
Withdrawn date

07-23-2013

Published date

11-23-2012

Foreword
1 Scope and field of application
2 Normative references
3 Definitions
4 Units and symbols
5 Lift well
   5.1 General provisions
   5.2 Well enclosure
   5.3 Walls, floor and ceiling of the well
   5.4 Construction of the walls of lift wells and
         landing doors facing a car entrance
   5.5 Protection of any spaces located below the
         car or the balance weight
   5.6 Protection in the well
   5.7 Headroom and pit
   5.8 Exclusive use of the lift well
   5.9 Lighting of the well
   5.10 Emergency release
6 Machinery space and pulley rooms
   6.1 General provisions
   6.2 Access
   6.3 The machinery space
   6.4 Construction and equipment of pulley rooms
7 Landing doors
8 Car and balance weight
   8.12 Trap doors, emergency doors, access doors and
         access panels
9 Suspension, compensation and uncontrolled speed protection
   9.1 Suspension
   9.2 Pulley and rope diameter ratios in connection with
         ropes for balance weights - Rope and chain terminations
   9.3 Not applicable
   9.4 Not applicable
   9.5 Distribution of load between the ropes and chains
   9.6 Not applicable
   9.7 Protection for pulleys and sprockets
   9.8 Safety gear
   9.9 Overspeed governor
   9.10 Ascending car overspeed protection means
10 Guide rails, buffers and final limit switches
   10.1 General provisions concerning guide rails
   10.2 Guiding of the car and balance weight
   10.3 Car and balance weight buffers
   10.4 Stroke of car and balance weight buffers
   10.5 Final lift switches
11 Clearances between car and wall facing the car entrance,
   and between car and balance weight
12 Lift machine
   12.1 General provision
   12.2 Drive of the car and the balance weight
   12.3 Use of overhung pulleys or sprockets
   12.4 Braking system
   12.5 Emergency operation
   12.6 Speed
   12.7 Stopping the machine and checking its stopped condition
   12.8 Monitoring the slowdown of the machine when reduced
         stroke buffers are used in accordance with 10.4.3.2
   12.9 Safety devices against slack rope or slack chain
   12.10 Motor run time limiter
   12.11 Protection of machinery
13 Electric installations and appliances
   13.1 General provisions
   13.2 Contractors, relay-contactors, components of safety
         circuits
   13.3 Protection of motors and other electrical equipment
   13.4 Main switches
   13.5 Electric wiring
   13.6 Lighting and sockets outlets
14 Protection against electric faults; controls; priorities
15 Notices, markings and operating instructions
   15.4 Lift, machinery space and pulley room
16 Examinations - Tests - Register - Maintenance
Annex A (normative) List of the electric safety devices
Annex B (normative) Unlocking triangle
Annex C (informative) Technical dossier
Annex D (normative) Examinations and test before putting into
        service
Annex E (informative) Periodical examinations and tests,
        examinations and tests after an important modification
        or after an accident
Annex F (normative) Safety components - Test procedures for
        verification of conformity
Annex G (informative) Proof of guide rails
Annex H (normative) Electronic components - Failure exclusion
Annex J (normative) Pendulum shock test
Annex K (normative) Top clearances for traction drive lifts
Annex L (normative) Necessary buffer stroke
Annex M (informative) Traction evaluation (for overspeed
        governor)
Annex N (normative) Evaluation of safety factor for suspensions
        ropes
Annex ZA (informative) Relationship of this European standard
         with EU Directives

Gives the safety rules for the construction and installation of permanently installed new rack and pinion lifts serving defined landing levels, having a car designed for the transportation of persons or persons and goods supported by rack and pinion and moving between guide rails inclined not more than 15 to the vertical.

Committee
MHE/4
DevelopmentNote
To be read in conjunction with EN 81-1 (10/2002)
DocumentType
Draft
PublisherName
British Standards Institution
Status
Withdrawn

Standards Relationship
PREN 81-7 : DRAFT 2009 Identical

ISO 6336-2:2006 Calculation of load capacity of spur and helical gears Part 2: Calculation of surface durability (pitting)
ISO 6336-3:2006 Calculation of load capacity of spur and helical gears Part 3: Calculation of tooth bending strength
EN 81-1:1998+A3:2009 Safety rules for the construction and installation of lifts - Part 1: Electric lifts
ISO 6336-5:2016 Calculation of load capacity of spur and helical gears Part 5: Strength and quality of materials
1995/16/EC : 1995 DIRECTIVE 95/16/EC OF 29 JUNE 1995 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO LIFTS
ISO 6336-1:2006 Calculation of load capacity of spur and helical gears Part 1: Basic principles, introduction and general influence factors

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