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Standard test specification for silicon avalanche diode and thyristor surge suppressor components that are used in surge protective devices

Standard test specification for silicon avalanche diode and thyristor surge suppressor components that are used in surge protective devices

Standard test specification for gas discharge tubes and metal-oxide varistor components that are used in surge protective devices

Analyse market situations with respect to the quality of the electricity mains and establish if new requirements are needed for IEC 60335-1

Standard test specification for gas discharge tubes and metal-oxide varistor components that are used in surge protective devices

Analyse market situations with respect to the quality of the electricity mains and establish if new requirements are needed for IEC 60335-1

Lighting installations for advertising signs with a rated output voltage not exceeding 1000V , which are illuminated by hot-cathode-fluorescent lamps, luminous discharge tubes (neon-tubes), inductive discharge lamps, light emitting diodes (LEDS) and/or LED modules

Natural esters to be employed as insulating fluids

To be set up - Installations in agricultural and horticultural premises

To be set up - Earthing arrangements, protective conductors and protective bonding conductors

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