BS EN 62271-1:2017 High-voltage switchgear and controlgear Common specifications for alternating current switchgear and controlgear

Radio disturbances
Withstand voltage
Switchgear
Electrical testing
Design
Electrical equipment
Temperature-rise limit
Ratings
Electromagnetic compatibility
Electric control equipment
Dielectric-strength tests
Thermal testing
Rated frequencies
Rated voltage
Safety measures
Alternating current
Environment (working)
High-voltage equipment
Testing conditions
Type testing

Link: BS EN 62271-1:2017 High-voltage switchgear and controlgear Common specifications for alternating current switchgear and controlgear
Source: BSI Standards