High-voltage switchgear and controlgear. Gas-filled wrought aluminium and aluminium alloy enclosures Ingestion-build-177197 and footwear testers

and footwear testers

This standard aims to help users by:

K and N are those used in the previous edition of this standard

showing that a summative assessment has been conducted under secure conditions and is the authentic work of the candidate

It has been superseded by the recently published EN ISO 25539-1:2009 Cardiovascular implants

High-voltage switchgear and controlgear. Gas-filled wrought aluminium and aluminium alloy enclosures Ingestion-build-177197 and footwear testersWhat is this standard about? This document applies to wrought aluminium and aluminium alloy enclosures and their welding. These enclosures are pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases, used in indoor and outdoor installations of high voltage switchgear and controlgear with rated voltages above 1 kV, where the gas is used principally for its dielectric and or arc quenching properties