BS EN 81-58:2018 pdf free

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BS EN 81-58:2018 pdf free.Safety rules for the construction and installation of lifts – Examination and tests – Part58:Landing doors fire resistance test.
This document is a type C standard as stated in EN ISO 12100.
When provisions of this type 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 lift landing doors that have been designed and built according to the provisions of this type C standard.
EN 81-20 has identified the need for lift doors to act as fire barriers against the transfer of a fire via the lift well. This European Standard specifies a procedure for this purpose. It follows the general principle of EN 1363-1 and where appropriate the procedure of EN 1634-1. Additionally a tracer gas technique for establishing the integrity of a lift landing door is used.
Lift landing doors are not included in the scope of EN 1634-1.
This European Standard specifies the method of test for determining the fire resistance of lift landing doors which may be exposed to a fire from the landing side. The procedure applies to all types of lift landing doors used as a means of access to lifts in buildings and which are intended to provide a fire barrier to the spread of fire via the lift well.
The procedure allows for the measurement of integrity and if required the measurement of radiation and thermal insulation.
No requirements other than the verification that the specimen is operational are included for mechanical conditioning before the test as these are included in the relevant product standard.
4 Test principle
4.1 EN 1634-1 contains a procedure for the determination of fire resistance of doors which may be exposed to a fire in a building from either side and are required to prevent the transfer of fire from one side to the other. Lift landing doors represent a special use of doors where the fire exposure is expected to be from a specified direction, i.e. the landing side, and where the hazard exists only subsequent to the entry of a tire into the lift well, Such a door is generally not designed to possess the same resistance to the passage of hot gases as a door separating adjacent spaces on the same floor.
4.2 The test consists in exposing the landing side of a lift landing door to the heating conditions specified in EN 1363-1 for the period for which the door shall be assessed for its fire resistance. During the test; positive pressure exists over the whole height of the door on the exposed side, inducing the leakage of furnace gases to the unheated side. A canopy is provided on the unexposed side which collects the leaked gases and a suction fan draws these through a duct provided with a system for measuring the volume flow (see Annex A). The concentration of CO2, used as a tracer gas, is measured in the furnace and at the airflow measuring point, and by monitoring the gas flow rate and its temperature it is possible to calculate the leakage rate of hot gases through the test door. The method gives a record of the hot gas leakage as a function of time which is corrected for normal conditions. This provides a basis for assessing the ability of the door to act as an effective fire barrier.

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