SSG4909E

• Ersätter SSG5151E

Titel

Instructions for EMC

Orientering

SSG 4909E is an aid to meet the requirements of the EMC directive. The purpose of the standard is to give instructions on how to handle the electrically disturbed environment in fixed installations, thereby providing increased operational accessibility, better electrical quality and fewer disruptions. The standard is directed towards
— owners and “elanläggningsansvariga” (managers of electrical
installations)
— electrical installation personnel for compliance and maintenance
technicians/maintenance personnel
— project managers and supervisors
— operations technicians
— designers
— consultants
— suppliers.
The EMC directive refers to different product standards. One of these (SS-EN 61800 – 3:2005) controls the PDS (Power Drive System, i.e. frequency inverters). It states that there should be an investigation prior to each installation of the inverters on IT networks and inverters with rated current of 400 A or more, to demonstrate that the converter will cause interference with any other equipment to its own or nearby facilities. This investigation is extensive and costly to perform. By following the work process described in SSG 4909E, this investigation is done once for the entire plant, consequently avoiding large investigation costs for each individual inverter installation.

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