BC-03-88 - BC-03-88

CENELEC Report

The scope of the Generic Standards specifies the applicability of the standards to products intended for use in a given environment. As these Generic Standards may be applied to all relevant electrical and electronic equipment and systems, electromagnetic phenomena in the broad frequency range 0 Hz to 400 GHz have been considered to ensure electromagnetic compatibility in most situations. From a practical point of view and from the probability of occurrence of disturbances, the emphasis has been given to frequencies up to 1 GHz for both immunity and emission. Because of lack of availability of approved standards, tests have been limited, for example up to 1 GHz in case of emission and 5OO MHz for immunity. An extension of these frequency ranges is foreseen when basic standards are revised. The emission limits are required to restrict electromagnetic disturbances to maximum permissible levels, for these specific environments in order to avoid interference in other equipment or systems. The emission limits in the radio-frequency range are to protect the effective use of the radio-frequency spectrum. All revisions of existing and drafting of future product standards shall take this into account.

1999-09-01 PSIST EN 61000-4-4:1999 prevod v javni obravnavi

Relates to the immunity requirements and test methods for electrical and electronic equipment to repetitive electrical fast transients. Additionally defines ranges of test levels and establishes test procedures. The object of this standard is to establish a common and reproducible basis for evaluating the performance of electrical and electronic equipment when subjected to repetitive fast transients (bursts), on supply, signal and control ports. The test 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, relay contact bounce, etc.). The standard defines: - test voltage waveform; - range of test levels; - test equipment; - test set-up; - test procedure.