1. PD IEC/TR 61292-4:2014 Optical amplifiers Part 4: Maximum permissible optical power for the damage-free and safe use of optical amplifiers, including Raman amplifiers

2. PD IEC/TR 61292-7:2011 Optical amplifiers Part 7: Four wave mixing effect in optical amplifiers

3. PD IEC/TR 61292-9:2013. Optical amplifiers Part 9: Semiconductor optical amplifiers (SOAs)

4. PD IEC/TR 61340-1:2012. Electrostatics Part 1: Electrostatic phenomena - Principles and measurements

5. PD IEC/TR 61354-1995 .Electricity meters - Marking of auxiliary terminals for tariff devices

6. PD IEC/TR 61361:1999.Electricity metering - Local and remote data exchange - Applications and performance

7. PD IEC/TR 61375-2-7:2014. Electronic railway equipment - Train communication network (TCN) Part 2-7: Wireless Train Backbone (WLTB)

8. PD IEC/TR 61439-0:2013. Low-voltage switchgear and controlgear assemblies Part 0: Guidance to specifying assemblies

9. PD IEC/TR 61496-4:2007. Safety of machinery - Electro-sensitive protective equipment - Part 4: Particular requirements for equipment using vision based protective devices (VBPD)

10. PD IEC/TR 61508-0:2005. Functional safety of electricalelectronic programmable electronic safetyrelated systems - Part 0: Functional safety and IEC 61508