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IEC TS 61044-2021 pdf free download – Opportunity charging of lead-acid traction batteries

IEC TS 61044-2021 pdf free download - Opportunity charging of lead-acid traction batteries. 5Operational procedures5.1General The following information in 5.2 to 5.5 shall be considered when operational procedures arebeing established. 5.2Charging conditions Self-compensating chargers are preferred when...

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IEC TR 63378-1-2021 pdf free download – Thermal standardization on semiconductor packages – Part 1: Thermal resistance and thermal parameter of BGA, QFP type semiconductor packages

IEC TR 63378-1-2021 pdf free download - Thermal standardization on semiconductor packages – Part 1: Thermal resistance and thermal parameter of BGA, QFP type semiconductor packages. This part of lEC 63378 specifies the terms and definitions that...

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IEC TR 63367-2021 pdf free download – Fibre optic interconnecting devices and passive components – Summarising results of round robin on connector end face scratch recognition and verification by automated microscopes

IEC TR 63367-2021 pdf free download - Fibre optic interconnecting devices and passive components – Summarising results of round robin on connector end face scratch recognition and verification by automated microscopes. This document summarises the results of...

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IEC TR 63335-2021 pdf free download – Nuclear power plants – Instrumentation and control systems, control rooms and electrical power systems – Specific features of small modular reactors and needs regarding standards

IEC TR 63335-2021 pdf free download - Nuclear power plants – Instrumentation and control systems, control rooms and electrical power systems – Specific features of small modular reactors and needs regarding standards. 5SMR specific features5.1General The 2018...

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IEC TR 63304-2021 pdf free download – Methods of measurement of the magnetic properties of permanent magnet (magnetically hard) materials in an open magnetic circuit using a superconducting magnet

IEC TR 63304-2021 pdf free download - Methods of measurement of the magnetic properties of permanent magnet (magnetically hard) materials in an open magnetic circuit using a superconducting magnet. The magnetic dipole moment of the test specimen...

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IEC TR 63258-2021 pdf free download – Nanotechnologies – A guideline for ellipsometry application to evaluate the thickness of nanoscale films

IEC TR 63258-2021 pdf free download - Nanotechnologies – A guideline for ellipsometry application to evaluate the thickness of nanoscale films. 4.2.3Sample handling Ellipsometry is very sensitive to physical and chemical properties of the sample's surface, so...

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IEC TR 63226-2021 pdf free download – Managing fire risk related to photovoltaic (PV) systems on buildings

IEC TR 63226-2021 pdf free download - Managing fire risk related to photovoltaic (PV) systems on buildings. 4.3.4Use of building 4.3.4.1General Building use can play a major role in the risk profile of a project.The financial risk...

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IEC-61558-2-20-2000 pdf free download – Safety of power transformers, power supply units and similar devices – Part 2-20: Particular requirements for small reactors

IEC-61558-2-20-2000 pdf free download - Safety of power transformers, power supply units and similar devices – Part 2-20: Particular requirements for small reactors. Replacement: This part of lEC 61558 applies to stationary or portable, single-phase or poly-phase,...

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IEC TR 62959-2021 pdf free download – Optical fibre cables – Shrinkage effects on cable and cable element end termination – Guidance

IEC TR 62959-2021 pdf free download - Optical fibre cables – Shrinkage effects on cable and cable element end termination – Guidance. Because different materials are used within cables, when the temperature changes, the cable elements and...

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IEC-61837-2-2000 pdf free download – Surface mounted piezoelectric devices for frequency control and selection – Standard outlines and terminal lead connections – Part 2: Ceramic enclosures

IEC-61837-2-2000 pdf free download - Surface mounted piezoelectric devices for frequency control and selection – Standard outlines and terminal lead connections – Part 2: Ceramic enclosures. This part of lEC 61837 deals with standard outlines and terminal...

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