BS EN 54-12:2015

What is BS EN 54-12 – Requirements for line detectors about?

BS EN 54-12 is the 12 part of the BS EN 54 specifies requirements, test methods and performance criteria for line detectors using an optical beam that detect smoke by utilizing the attenuation and/or changes in attenuation of an optical beam, for use in fire detection and fire alarm systems installed in buildings (see BS EN 54-1:2011). BS EN 54-12 provides for the assessment and verification of constancy of performance (AVCP) of line detectors using an optical beam to this EN.

Note:  BS EN 54-12 does not cover:

• Line detectors using an optical beam designed to operate with separations between opposed components of less than 1 m
• Line detectors using an optical beam whose optical path length is defined or adjusted by an integral mechanical connection
• Line detectors using an optical beam with special characteristics, which cannot be assessed by the test methods in BS EN 54-12

Who is BS EN 54-12 - Requirements for line detectors for?

BS EN 54-12 on portable foam equipment is useful for:

• Smoke detectors manufacturers
• Quality control authorities
• Safety department

Why should you use BS EN 54-12 - Requirements for line detectors?

An optical beam smoke detector is a device that uses a projected beam of light to detect smoke across large areas. BS EN 54-12 provides requirements that can be followed while manufacturing the smoke detectors. This will ensure the quality and maintain the standard in factory production. BS EN 54-12 provides test methods that help determine the efficiency and the performance of the smoke detectors which ensure their durability.

What’s changed since the last update?

BS EN 54-12:2015 supersedes BS EN 54-12:2002. BS EN 54-12:2015 includes some technical changes with respect to BS EN 54-12:2002. These include:

• The definition of response value has been modified so that it relates the same smoke density for line
  detectors using an optical beam both with and without a separate reflector
• Changes to the test conditions and requirements for the Tolerance to beam misalignment test and the vibration (endurance) test