Engineering

IEC 62477-2 ED2 - Safety requirements for power electronic converter systems and equipment - Part 2: High Voltage Power electronic converters up to 36 kV a.c. or 54 kV d.c.
Categories: Rectifiers. Converters. Stabilized power supply
Committee: TC 22 (error)
Origin: IEC
Close date: 13 Feb 2026
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IEC 63567-1 ED1 - Semiconductor devices - Performance evaluation of semiconductor processing components and inspection equipment - Part 1: Transmittance evaluation method of EUV pellicle
Categories: Semiconductor devices
Committee: TC 47 (error)
Origin: IEC
Close date: 13 Feb 2026
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ISO/DIS 8501-1 - Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings
Categories: Surface treatment and coating
Committee: ISO/TC 35/SC 12 (Preparation of steel substrates before application of paints and related products)
Origin: ISO
Close date: 18 Feb 2026
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prEN IEC 60079-29-3:2025 - Explosive atmospheres - Part 29-3: Gas detectors - Guidance on functional safety of fixed gas detection systems
Categories: Electrical equipment. Special conditions
Committee: CLC/TC 31 (Electrical apparatus for potentially explosive atmospheres)
Origin: CENELEC
Close date: 20 Feb 2026
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prEN IEC 60947-7-4:2025 - Low-voltage switchgear and controlgear - Part 7-4: Ancillary equipment - PCB terminal blocks for copper conductors
Categories: Switchgear and controlgear
Committee: CLC/TC 121A (Low-voltage switchgear and controlgear)
Origin: CENELEC
Close date: 20 Feb 2026
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prEN IEC 61189-3-720:2025 - Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3-720: Test methods for interconnection structures (circuit boards) - Transmission loss test method for high frequency multilayer circuit boards
Categories: Printed circuits and boards
Committee: CLC/SR 91 (Electronics assembly technology)
Origin: CENELEC
Close date: 20 Feb 2026
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prEN IEC 61375-2-3:2025 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile
Categories: Railway rolling stock
Committee: CLC/TC 9X (Electrical and electronic applications for railways)
Origin: CENELEC
Close date: 20 Feb 2026
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prEN IEC 61375-2-5:2025 - Electronic railway equipment - Train communication network (TCN) - Part 2-5: Ethernet train backbone
Categories: Railway rolling stock
Committee: CLC/TC 9X (Electrical and electronic applications for railways)
Origin: CENELEC
Close date: 20 Feb 2026
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EN IEC 62788-2-1:2023/prA1:2025 - Amendment 1 - Measurement procedures for materials used in photovoltaic modules - Part 2-1: Polymeric materials - Frontsheet and backsheet - Safety requirements
Categories: Solar energy engineering
Committee: CLC/TC 82 (Solar photovoltaic energy systems)
Origin: CENELEC
Close date: 20 Feb 2026
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