BS 5502-52:1991

Design and selection of alarm systems and emergency ventilation equipment for livestock, when housed under intensive conditions.

This Part of BS 5502 gives recommendations on the design and selection of alarm systems, emergency ventilation and smoke ventilation equipment for the housing of livestock, especially poultry, pigs, calves and rabbits when housed under intensive conditions. These recommendations are an important factor in ensuring the welfare of livestock in the event of fire or failure of the ventilation system. Methods of detection and alarm, and the provision of alternative ventilation are recommended for systems which have the ability to: detect failure of the electricity supply; detect unacceptably high or low temperatures; and provide a warning for the stockperson. The main types of ventilation systems considered are those which provide fan powered and automatically controlled natural ventilation. For manually operated natural ventilation systems, only the warning that temperature is outside pre-set limits is considered. The provision and display of operating instructions and procedures for testing and maintaining the alarm system and the emergency ventilation equipment are also covered. The fitting of intruder and gas alarms, and the provision of subsequent escape routes is not included. NOTE. The titles of the publications referred to in this standard are listed on the inside back cover.