Amendment 1 to IEC 60947-4-1 Ed. 3.0: Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters

IEC 61280-4-1 Ed. 2: Fibre-optic communication subsystem test procedures - Part 4-1: Installed cable plant - Multimode attenuation measurement

Amendment 1 to IEC 60269-4-1, Ed.1: Low-voltage fuses - Part 4-1: Supplementary requirements for fuse-links for the protection of semiconductor devices Section I to III: Examples of types of standardized fuse-links

IEC 60061: Lamp caps and holders together with gauges for the control of interchangeability and safety Part 1: Lamp caps - Amendment 44 Part 2: Lampholders - Amendment 41 Part 3: Gauges - Amendment 42 Part 4: Guidelines and general information - Amendment 13

IEC 60384-4-1: FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT - Part 4-1: Blank detail specification - Fixed aluminium electrolytic capacitors with non-solid electrolyte - Assessment level EZ

IEC 62153-4-1: Metallic communication cable test methods - Part 4-1: Electromagnetic Compatibility (EMC) - Introduction to electromagnetic (EMC) screening measurements.

62029-4-1: Coaxial cables used in cabled distribution networks - Part 4-1: Blank detail specification for drop cables

IEC 60794-2-41 Ed. 1.0: Optical Fibre Cables - Part 2- 41: Indoor optical fibre cables - Product specification for simplex and duplex buffered A4 fibres

Basic specification for optical fibre amplifier test methods - Part 4-1: Test methods for analogue parameters - Gain-slope by broad band source test method (IEC 86C/194/NP : 1998)

IEC 61290-4-1 Ed. 1.0: Optical amplifiers - test methods - Part 4-1: Gain transient parameters - Two-wavelength method