Repair
Pressure testing
Proof stress
Marking
Valves
Wrought alloys
Electric enclosures
Electrical components
Inspection
Switchgear
Certificates of conformity
Design
High-voltage equipment
Radiographic testing
Ultrasonic testing
Castings
Burst tests
Aluminium alloys
Designations
Bursting discs
Structures
Non-destructive testing
Welding
Switches
Electrical equipment
Link: BS EN 50069:2018 High-voltage switchgear and controlgear. Gas-filled welded composite enclosures of cast and wrought aluminium alloys
Source: BSI Standards
