CSN IEC 621-4:1994
Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries). Part 4: Requirements for the installation

Standard No.

CSN IEC 621-4:1994

Release Date

1994

Published By

CZ-CSN

Status

Withdraw

Latest

CSN IEC 621-4:1994

CSN IEC 621-4:1994 history

• 1994 CSN IEC 621-4:1994 Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries). Part 4: Requirements for the installation