• 99/702257 DC : DRAFT JAN 1999

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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

    Available format(s): 

    Withdrawn date:  22-07-2013

    Language(s): 

    Published date:  23-11-2012

    Publisher:  British Standards Institution

    Sorry this product is not available in your region.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Comment Closes On
    Committee MHE/4
    Development Note To be read in conjunction with EN 81-1 (10/2002)
    Document Type Draft
    Publisher British Standards Institution
    Status Withdrawn

    Standards Referencing This Book - (Show below) - (Hide below)

    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
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective