BS EN IEC 60358-4:2018 Coupling capacitors and capacitor dividers DC and AC single-phase capacitor dividers

Ratings
Environment (working)
Marking
Temperature
Frequencies
Electrical tolerances
Electrical safety
Definitions
Overhead power lines
Installation
Performance
Leakage paths
Capacitors
Direct current
Capacitance measurement
Signal transmission
Withstand voltage
Impulse voltages
Power capacitors
Voltage dividers
Alternating current
High voltage
Testing conditions
Electrical insulation
Electrical testing
Test equipment
Classification systems
Overvoltage protection
Circuits
Mechanical testing

Link: BS EN IEC 60358-4:2018 Coupling capacitors and capacitor dividers DC and AC single-phase capacitor dividers
Source: BSI Standards

BS EN 50129:2018 Railway applications. Communication, signalling and processing systems. Safety related electronic systems for signalling

Electronic equipment and components
Approval testing
Signal devices
Fail-to-safety devices
Control systems
Safety measures
Acceptance (approval)
Performance testing
Risk assessment
Railway signals
Safety devices
Signals
Quality assurance
Railway equipment
Railway control systems

Link: BS EN 50129:2018 Railway applications. Communication, signalling and processing systems. Safety related electronic systems for signalling
Source: BSI Standards

BS ISO 21925-1:2018 Fire resistance tests. Fire dampers for air distribution systems Mechanical dampers

Fire tests
Construction materials
Fire
Pipes
Ignitability
Fire-test classifications
Flame-spread classifications
Floors
Thermal insulating materials
Construction systems parts
Fire resistance
Floor coverings
Classification systems

Link: BS ISO 21925-1:2018 Fire resistance tests. Fire dampers for air distribution systems Mechanical dampers
Source: BSI Standards