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IEC 61788-4 2011 pdf free download – Superconductivity – Part 4: Residual resistance ratio measurement – Residual resistance ratio of Nb-Ti composite superconductors

IEC 61788-4 2011 pdf free download - Superconductivity – Part 4: Residual resistance ratio measurement – Residual resistance ratio of Nb-Ti composite superconductors. 4Requirements The resistance measurement both at room and cryogenic temperatures shall be performedwith the...

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IEC 61753-2-1-2000 pdf free download – Fibre optic interconnecting devices and passive components performance standard – Part 2-1 : Fibre optic connectors terminated on single-mode fibre for category U – Uncontrolled environment

IEC 61753-2-1-2000 pdf free download - Fibre optic interconnecting devices and passive components performance standard – Part 2-1 : Fibre optic connectors terminated on single-mode fibre for category U – Uncontrolled environment. This part of lEC 61753...

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IEC 61730-1-2004 pdf free download – Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction

IEC 61730-1-2004 pdf free download - Photovoltaic (PV) module safety qualification – Part 1: Requirements for construction. This part of lEC 61730 describes the fundamental construction requirements for photovoltaic(PV) 'modules in order to provide safe electrical and...

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IEC 61701 2011 pdf free download – Salt mist corrosion testing of photovoltaic (PV) modules

IEC 61701 2011 pdf free download - Salt mist corrosion testing of photovoltaic (PV) modules. Photovoltaic(PV) modules are electrical devices intended for continuous outdoor exposureduring their lifetime.Highly corrosive wet atmospheres,such as marine environments,couldeventually degrade some of the...

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IEC 61587-6-2021 pdf free download – Mechanical structures for electrical and electronic equipment – Tests for IEC 60917 and IEC 60297 series – Part 6: Security aspects for indoor cabinets

IEC 61587-6-2021 pdf free download - Mechanical structures for electrical and electronic equipment – Tests for IEC 60917 and IEC 60297 series – Part 6: Security aspects for indoor cabinets. This part of lEC 61587 specifies security...

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IEC 61558-2-19-2000 pdf free download – Safety of power transformers, power supply units and similar devices – Part 2-1 9: Particular requirements for perturbation attenuation transformers

IEC 61558-2-19-2000 pdf free download - Safety of power transformers, power supply units and similar devices – Part 2-1 9: Particular requirements for perturbation attenuation transformers 1 Scope Replacement: This International Standard deals with all aspects of...

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IEC 61557-12-2021 pdf free download – Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC – Equipment for testing, measuring or monitoring of protective measures – Part 12: Power metering and monitoring devices (PMD)

IEC 61557-12-2021 pdf free download - Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC – Equipment for testing, measuring or monitoring of protective measures – Part 12:...

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IEC 61547-2020 pdf free download – Equipment for general lighting purposes – EMC immunity requirements

IEC 61547-2020 pdf free download - Equipment for general lighting purposes – EMC immunity requirements. This part of IEC 61547 which deals with electromagnetic immunity requirements,applies tolightingequipment which is within the scope of lIEC technical committee 34,includingapparatus...

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IEC 61514-2000 pdf free download – Industrial-process control systems – Methods of evaluating the performance of valve positioners with pneumatic outputs

IEC 61514-2000 pdf free download - Industrial-process control systems – Methods of evaluating the performance of valve positioners with pneumatic outputs. This International Standard specifies tests designed to determine the static and dynamicperformance of single-acting or double-acting...

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IEC 61468-2021 pdf free download – Nuclear power plants – Instrumentation systems important to safety – In-core instrumentation: Characteristics and test methods of self-powered neutron detectors

IEC 61468-2021 pdf free download - Nuclear power plants – Instrumentation systems important to safety – In-core instrumentation: Characteristics and test methods of self-powered neutron detectors. This document applies to in-core neutron detectors，viz. self-powered neutron detectors(SPNDs),which are...

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