Semiconductor converters. General requirements and line commutated converters - Specification of basic requirements1 Scope and object This International Standard specifies the requirements for the performance of all semiconductor power converters and semiconductor power switches using controllable and or non controllable electronic valve devices. The electronic valve devices mainly comprise semiconductor devices, either not controllable (i. e. rectifier diodes) or controllable (i. e. thyristors, triacs, turn off thyristors and power transistors). The controllable

Contents of BS EN ISO 10651-4 include:

2nd or 3rd family gases designed to operate in the condensing or non condensing mode for the heating of domestic dwellings or domestic dwellings in commercial premises by the circulation of heated water in open or closed systems

Quality Control personnel

specifies requirements and test methods for close-fit lining systems intended to be used for the renovation of water supply networks

Data centre owners and managers

With obedience and compliance to BS IEC 61559-1

To prepare a detailed product specification within the scope of BS EN 61076-3-001

control of ignition sources other than those created by electrical equipment

Contents of BS EN 12393-3:

flues and heating appliances

e) soft wire (ligature wire) for use in dentistry

BS EN 589 specifies requirements and test methods for marketed and delivered automotive liquefied petroleum gas (LPG)