Fire tests
Torque
Electrical insulation
Drop tests
Switches
Cut-out devices
Clearance distances
Resistance measurement
Flexible conductors
Single-phase transformers
Portable
Temperature-rise limit
Overload protection
Safety measures
Electrical testing
Power transformers
Electrical safety
Power output
Electric enclosures
Impact testing
Protected electrical equipment
Dielectric-strength tests
Polyphase transformers
Small-power transformers
Alternating-current transformers
Tracking tests
Stationary
Safety isolating transformers
Environmental testing
Corrosion tests
Classification systems
Short-circuit current tests
Electric power systems
Cable glands
Electrical protection equipment
Leakage paths
Thermal testing
Symbols
Electrical equipment
Transformers
Dielectric strength
Electric terminals
Dry-type transformers
Rated frequencies
Marking
Windings
Rated voltage
Mechanical testing
Earthing
Circuits
Screws (bolts)
Type testing
Isolating transformers
Link: BS EN IEC 61558-1:2019 Safety of transformers, reactors, power supply units and combinations thereof General requirements and tests
Source: BSI Standards
