1. PD IEC/TR 62711:2011. Mnemonics and designations of symbols for measuring relays, instruments and related device

2. PD IEC/TR 62721:2012. Reliability of devices used in fibre optic systems - General and guidance

3. PD IEC/TR 61000-3-13:2008. Electromagnetic compatibility (EMC) - Part 3-13: Limits - Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems

4. PD IEC/TR 61000-4-38:2015. Electromagnetic compatibility (EMC) - Part 4-38: Testing and measurement techniques - Test, verification and calibration protocol for voltage fluctuation and flicker compliance test systems

5. PD IEC/TR 61131-4:2004. Programmable controllers - Part 4: User guidelines

6. PD IEC/TR 61156-1-2:2009 + A1:2014. Multicore and symmetrical pairquad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pairquad cables

7. PD IEC/TR 61156-1-5:2013. Multicore and symmetrical pairquad cables for digital communications Part 1-5: Correction procedures for the measurement results of return loss and input impedance

8. PD IEC/TR 61278-1997. Live working - Guidelines for dielectric testing of tools and equipment

9. PD IEC/TR 61282-10:2013. Fibre optic communication system design guides Part 10: Characterization of the quality of optical vector-modulated signals with the error vector magnitude

10. PD IEC/TR 61282-11:2012. Fibre optic communication system design guides Part 11: Multimode launch conditions