The control of RF radiation hazards in an industrial and airfield environment

Unnecessary concern is caused whenever non-ionising radiation (NIR) is mentioned in the media. The term `non-ionising´ adds to the public´s confusion, with radio/radar frequency (RF) and laser radiation being assimilated to nuclear, i.e. ionising radiation. The scientific community thus has difficulty convincing the public that any form of NIR can be used safely. The paper aims to show that, given adequate control and assessment (IC&A) procedures an appropriate level of RF safety can be assured in any situation. It addresses the types and quantities of fixed site and mobile RF emitters (RFE) that may be present, and details the risks they pose to humans, flammable atmospheres, electrically-initiated electro-explosive devices (EEDs) and electrical/electronic equipment. The rationale behind C&A procedures is then explained, including the need for specialist support. The level of control is shown to be commensurate with the level of risk perceived. The paper draws on the experience of instigating such a RF safety regime, gathered at British Aerospace Defence´s Warton Unit in Lancashire a multi-site facility comprising manufacturing facilities, offices and an operational airfield used by both military and civil aircraft. Finally data from over nearly two decades of operations are presented to underline the benefits of implementing such a C&A regime in ensuring the safety of both employee and public alike