New Results on the Prevention of Hazards Due to Electromagnetic Fields in the Vicinity of High-power Radio Transmitters.

Two problem areas of hazards due to electromagnetic fields are discussed. The basis of a biophysical nerve-irritation and heat-effect concept as well as limiting values of hazards to persons due to rf fields are indicated. With a view to the prevention of hazards from the unintended ignition of explosive mixtures by rf fields, results of calculations on antenna theory are put forward, by means of which the decoupling of energy from the field may be estimated. Limiting values are given for the maximum power tht can be taken from the field, such that, if those values are respected, the ignition of explosive mixtures may be considered to be impossible.