© British Standards Institution 2025
Site Map
Standard
Designated

BS EN IEC 61558-1:2019

Safety of transformers, reactors, power supply units and combinations thereof - General requirements and tests

Current

•

Published:

30 Jun 2019

Overview
Preview
References
History
Product Details
Descriptors
Polyphase transformers
Windings
Flexible conductors
Single-phase transformers
Portable
Type testing
Clearance distances
Electrical insulation
Electric terminals
Small-power transformers
Drop tests
Tracking tests
Safety isolating transformers
Power output
Electric enclosures
Screws (bolts)
Fire tests
Symbols
Earthing
Environmental testing
Rated voltage
Corrosion tests
Classification systems
Circuits
Electric power systems
Safety measures
Electrical testing
Transformers
Dielectric-strength tests
Short-circuit current tests
Dry-type transformers
Switches
Protected electrical equipment
Marking
Electrical protection equipment
Resistance measurement
Torque
Temperature-rise limit
Power transformers
Electrical safety
Rated frequencies
Overload protection
Mechanical testing
Stationary
Isolating transformers
Alternating-current transformers
Dielectric strength
Cut-out devices
Leakage paths
Impact testing
Thermal testing
Electrical equipment
Cable glands
ICS Codes
29.180 Transformers. Reactors
Committee
PEL/96
International relationships
Identical to:

EN 61558-1 Ed3.0

IEC 61558-1:2017

ISBN
978 0 580 91205 4
Publisher
BSI