Proposal of the Secretariat: Semiconductor power converters - Adjustable speed electric drive systems - General - Rating information, particularly for d.c. motor drives

Relevance for TC78 to prepare a standard on test methods for determining the arc rating for face protective products to be used for live working

IEC 60252-1/A1/Ed2: AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation andoperation

IEC 60252-1-A1/Ed2: AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation and operation

Electric cables - Calculation of the current rating - Part 3-3: Sections on operating conditions - Cables crossing external heat sources

Air to water Heat pumps - Testing and rating for performance - - Part 3: Combined hot water supply and space heating and/or space cooling

Testing and rating including seasonal performance of air-to-air air-conditioners and heat pumps considering the effect of native control

Calculation of load capacity of bevel gears - Part 30: ISO rating system for bevel and hypoid gears - Sample calculations

IEC 61800-2 Ed.2: Adjustable speed electrical power drive systems - Part 2: General requirements - Rating specifications for low voltage adjustable frequency a.c. power drive systems

IEC 60287-3-2 Am2 Ed.1: Electric cables - Calculation of the current rating - Part 3: Sections on operating conditions - Section 2: Economic optimization of power cable size