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BS EN 81-77:2022 – TC

BS EN 81-77:2022 – TC

$217.84

Tracked Changes. Safety rules for the construction and installations of lifts. Particular applications for passenger and goods passenger lifts – Lifts subject to seismic conditions

Published By Publication Date Number of Pages
BSI 2022 80
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This document specifies the additional special provisions and safety rules for passenger and goods passenger lifts where these lifts are installed in buildings and constructions (hereinafter buildings) intended to withstand seismic events in compliance with EN 1998-1:2004 (Eurocode 8), during use, maintenance, inspection and emergency operation of lifts. The aim of this document is to: – avoid loss of life and reduce the extent of injuries; – avoid people getting trapped in the lift; – avoid damage; – avoid environmental problems related to oil leakage; – reduce the number of lifts out of service. This document does not introduce any specific provisions and safety rules for lifts when ad ≤ 1 m/s2 as defined in Annex A. This document does not address other risks due to seismic events (e.g. fire, flood, explosion). This document is not applicable to lifts installed before the date of its publication.

PDF Catalog

PDF Pages PDF Title
1 30462019
45 A-30407959
46 undefined
54 1 Scope
2 Normative references
3 Terms and definitions
56 4 List of significant hazards
5 Safety requirements and/or protective measures
5.1 General
5.2 Lift well
57 5.3 Machinery and pulley spaces
58 5.4 Car
5.4.1 Mass of the car for lift design calculations
5.4.2 Car retaining devices
59 5.4.3 Car door locking devices
5.5 Counterweight or balancing weight
60 5.6 Suspension and compensation means
5.6.1 Protection for traction sheaves, pulleys and sprockets
5.6.2 Compensation means
5.7 Precaution against oil spillage
5.8 Guide rail system
5.8.1 General
5.8.2 Permissible stresses and deflections during seismic event
62 5.9 Machinery and other lift equipment
5.10 Electric installations and appliances
5.10.1 Electric installations in the lift well
5.10.2 Behaviour of the lift in case of failure of the mains power supply
5.10.3 Seismic detection system
5.10.3.1 A seismic detection system shall be provided for lifts with counterweight or balancing weight in Seismic lift category 3.
63 5.10.3.2 Where the seismic detection system is used exclusively to send information to the lift it shall be placed:
64 5.10.4 Behaviour of the lift in seismic mode
6 Verification of the safety requirements and / or protective measures
66 7 Information for use
67 Annex A (normative)Seismic lift categories
68 Annex B (informative)General information and determination of the design acceleration
B.1 General
69 B.2 Example of calculation of design acceleration
70 Annex C (informative)Primary wave detection system
71 Annex D (informative)Proof of guide rails
D.1 General
D.2 Mass of the rated load
D.3 Seismic forces
72 D.4 Load cases
73 D.5 Impact factors
D.6 Acceleration direction
D.7 Vertical distribution of masses
74 D.8 Car guide rail bending force
75 D.9 Counterweight or balancing weight guide rail bending force
76 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2014/33/EU aimed to be covered

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BS EN 81-77:2022 - TC
$217.84