Code of practice for the operation of fire protection measures - Actuation of release mechanisms for doors Ingestion-build-67170 The test as described in

The test as described in BS EN 61000-4-4 is intended to demonstrate the immunity of electrical and electronic equipment when subjected to types of transient disturbances such as those originating from switching transients (interruption of inductive loads

illustrates the relationships between the classes

— industrial

Note 1: The onboard device containing the ERI data is called the electronic registration tag (ERT)

This part of ISO/IEC 24730 defines an air interface protocol which utilizes chirp spread spectrum (CSS) at frequencies from 2

Code of practice for the operation of fire protection measures - Actuation of release mechanisms for doors Ingestion-build-67170 The test as described inBS 7273 4: 2007 gives recommendations for: design installation commissioning maintenance of electrical control arrangements for actuation of mechanisms that unlock, release or open doors in the event of fire. It applies to all aspects of the interface between these mechanisms and a fire detection and fire alarm system, including interfaces that incorporate acoustic coupling and radio transmission. It does not recommend whether the above mechanisms