BS EN 81-77:2018 pdf free.Safety rules for the construction and installations of lifts. Particular applications for passenger and goods passenger lifts – Part77:Lifts subject to seismic conditions.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered, are indicated in the scope of this standard.
This document is a Type C Standard as stated in EN ISO 12100.
When provisions of this C standard are different from those which are stated in type A or B standards, the provisions of this Type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this Type C standard.
0.2 General remarks
0.2.1 The object of this standard is to define additional safety rules related to passenger and goods lifts with a view to safeguarding persons and objects against the risks described below associated with the use, maintenance, inspection and emergency operation of lifts subject to seismic conditions.
0.3 Principles
Risk analysis, terminology and technical solutions have been considered taking into account the methods of EN ISO 12100 and EN ISO 14798 standards.
0.4 Assumptions
It is assumed that negotiations have been made for each contract between the customer and the supplier/installer about the design acceleration (ad) to be considered and the most effective position of the seismic detection system, if any, and of the primary wave detection system, if any. The building designer or the lift owner should provide the design acceleration (ad) which will be documented in the information for the owner provided by the installer.
This European Standard covers only the effects of earthquakes on lifts and not the nature of them.
This document specifies the special provisions and safety rules for passenger and goods passenger lifts where these lifts are permanently installed in buildings that are in compliance with EN 1998-1 (Eurocode 8).
This document defines additional requirements to EN 81-20 and EN 81-50.
It applies to new passenger lifts and goods passenger lifts. However, it can be used as a basis to improve the safety of existing passenger and goods passenger lifts.
This document does not introduce any additional special provisions and safety rules for lifts which are in Seismic lift category 0 as defined in Annex A, Table A.1.
This document does not address other risks due to seismic events (e.g. fire, flood, explosion).BS EN 81-77:2018 pdf free download.