1. BS EN 61858-2:2014. Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 2: Form-wound EIS

2. BS EN 61869-1:2009. Instrument transformers - Part 1: General requirements

3. BS EN 61869-2:2012. Instrument transformers - Part 2: Additional requirements for current transformers

4. BS EN 61869-3:2011. Instrument transformers - Part 3: Additional requirements for inductive voltage transformers

5. BS EN 61869-4:2014. Instrument transformers - Part 4: Additional requirements for combined transformers

6. BS EN 61869-5:2011. Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers

7. BS EN 61881-1:2011. Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 1: Paperplastic film capacitors

8. BS EN 61881-2:2012. Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 2: Aluminium electrolytic capacitors with non solid electrolyte

9. BS EN 61881-3:2012 A1:2013. Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 3: Electric double-layer capacitors

10. BS EN 61882:2016. Hazard and operability studies (HAZOP studies) - Application guide