BS EN 81-72:2015 Safety rules for the construction and installation of lifts – Particular applications for passenger and goods passenger lifts Part 72: Firefighters lifts

BS EN 81-72:2015 pdf free.Safety rules for the construction and installation of lifts – Particular applications for passenger and goods passenger lifts Part 72: Firefighters lifts.
5 Safety requirements and/or protective measures
5.1 Environment/Building requirements
5.1.1 The firefighters lift is located in a well with a safe area in front of every landing door which is used for firefighting operations. In front of every landing door a safe area, a fire shutter or a fire door shall be provided.
NOTE The purpose of safe areas is to protect the lift well, firefighters and those who may be waiting to be evacuated against fire, heat and smoke and in addition to allow the self rescue as described in 5.4. The minimum dimensions of each safe area are given by national regulations.
5.1.2 It is the responsibility of nationalllocal regulations to determine the required levels of fire resistance,
and other building requirements that shall be addressed for a safe firefighters lift:
— protection of the areas in front of the landing doors;
— separation of the well;
— fire resistance of the landing doors;
— fire resistance of the lift well and machinery space walls;
— fire resistance of fire shutters and fire doors;
— connection between lift safe areas and staircase;
— water management; see Annex E;
— power supply;
— communication connection;
— smoke control e.g. air pressurization system or ventilation;
— number and size of firefighters lifts.
5.1.3 The level of fire resistance of the lift well shall also apply to any of the following: the walls and doors of safe areas, fire doors, fire shutters, doors to machinery spaces, pulley and machine rooms. If there are other lifts in the same well, then the entire common well shall fulfil the fire resistance requirements of firefighters lift wells. See Annex B. It is not necessary that other lifts shall remain in operation but it shall be ensured that a malfunction of another lift does not have any adverse influence of the function of the firefighters lift.
5.1.4 Any lift landing door which is not intended to be used by firefighters and which does not have a safe area shall be protected by a fire shutter or a fire door classified in line with the lift well structure and national regulations (see Figure B.3).
5.1.5 The firefighters lift shall have a secondary power supply available.
5.1.6 The firefighters lift electrical power supply cable(s) shall be fire protected.
5.1.7 The source of the secondary power supply and automatic switch gear shall be located in a fire protected area.
5.1.8 In the case of an air pressurized well, the following points shall be considered by those designing the pressurization system:
— air speed into the well is minimized to avoid excessive swaying of travelling cable or compensation means:
— when the lift is in phase 2 (see 5.8.8) noise levels from the pressurization system are less than 80 dB(A) at positions 0,5 m from the microphones in the car, at the fire service access level and at the emergency and test panel;
— the pressurization shall not affect the opening and closing of the car and landing doors.
It is assumed that air pressurizing of the well does not cause any negative impacts on normal operation or safe maintenance activities of the lifts.
5.2 Fundamental firefighters lift requirements
5.2.1 The firefighters lift shall be designed in conformity with EN 81-20 and provided with additional protection, controls and signals.
5.2.2 The size of the firefighters lift shall be in accordance with national regulations and preferably be selected from ISO 4190-1. At no time shall the size be less than 1100mm wide by 1 400 mm deep with a rated load of 630 kg. See also Introduction.
The clear entrance width to the car shall be a minimum of 800 mm.
5.2.3 Where the intended use of the firefighters lift is to include evacuation, to accommodate such items as
a stretcher or bed, then the minimum rated load shall be 1 000 kg and the minimum dimensions of the car
1100 mm wide by 2 100 mm deep. See also Introduction.
NOTE For firefighters lifts national regulations may impose greater dimensions and rated loads.
5.2.4 The firefighters lift shall be able to reach the highest landing to be served in firefighting operations from the fire service access level within 60 s, from after the closing of the lift doors. However, for lifts with higher travel than 200 m, this time to reach the highest landing may be increased by 1 s for each 3 m additional travel height.
NOTE Experience has shown that a rated speed greater than 4,5 m/s may cause problems due to technical complexity e.g. size of secondary power supply, turbulence from the pressurized environment and spoilers on the car roof.
5.2.5 The lift shall be designed to operate correctly during firefighting operations for a period equal to that required for the structure, e.g. 2 h, according to the following conditions:
a) electrical/electronic devices on landings, other than at the fire service access level, shall be designed to function correctly in an ambient temperature range of 0 °C to 65 °C or be made non-operational. A malfunction of devices (landing indicators and push buttons) shall not prevent operation of the lift under fire fighting conditions;
b) all other electrical/electronic components of the firefighters lift shall be designed to function correctly in an ambient temperature range of 0 °C to + 40 °C;
c) the correct functioning of the lift control shall be ensured in smoke filled wells and/or machinery spaces;
d) any ambient temperature sensor shall not stop, or prevent the start, of the firefighters lift.
5.2.6 For a dual entry car, no more than one car door shall be open at any time during firefighting operations.
5.2.7 When the distance between consecutive landing doorsills exceeds 7 m, intermediate emergency doors shall be provided, such that the distance between sills is not more than 7 m. Additional consideration shall be made to the maximum length of the ladder as defined in 5.4.2.4.
NOTE The floor distance may be greater when appropriate calculations with a 6 m long ladder are provided. See 5,4.2.4.
5.2.8 Any lift, which is not required to stay in operation in the event of fire, sharing the same well as a firefighters lift should be provided with a fire recall system according to EN 81-73.
5.2.9 The firefighters lift well and machinery spaces shall not contain sprinklers.BS EN 81-72 pdf download.BS EN 81-72:2015 Safety rules for the construction and installation of lifts – Particular applications for passenger and goods passenger lifts Part 72: Firefighters lifts