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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Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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PREN 81-7 - SAFETY RULES FOR THE CONSTRUCTION AND INSTALLATION OF LIFTS AND SERVICE LIFTS - PART 7: RACK AND PINION LIFTS
23-07-2013
23-11-2012
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
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