Standards World

IEC 62044-3:2000 pdf free download - Cores made of soft magnetic materials -Measuring methods 1Scope This standard provides measuring methods for power loss and amplitude permeability ofmagnetic cores forming the closed magnetic circuits intended for use at...

IEC 61966-3:2000 pdf free download - Multimedia systems and equipment - Colour measurement and management 1Scope This part of lEC 61966 deals with equipment using cathode ray tubes (CRT) to display colourimages for use in multimedia applications....

IEC 61837-2:2000 pdf free download - Surface mounted piezoelectric devicesfor frequency control and selection - Standard outlines and terminal lead connections 1Scope This part of lEC 61837 deals with standard outlines and terminal lead connections as theyapply...

IEC 62598:2011 pdf free download - Nuclear instrumentation - Constructional requirements and classification ofradiometric gauges 5.1Measuring gap ln order to prevent persons placing their hands or any other part of their body in the usefulbeam，the gauges shall...

IEC 62435-7:2020 pdf free download - Electronic components - Long-term storage of electronic semiconductordevices 4.1overview of MEMS applications MEMS (Micro-electromechanical Systems) are miniaturized mechanical or electromechanicalelements that typically vary in size from 1 micron to 1 000...

IEC 62321-10:2020 pdf free download - Determination of certain substances in electrotechnical products 1 Scope This part of lEC 62321 specifies one normative technique for the determination of polycyclicaromatic hydrocarbons (PAHs) in polymers of electrotechnical products. These...

IEC 61991:2000 pdf free download - Railway applications -Rolling stock - Protective provisions againstelectrical hazards 1Scope IEC 61991 offers a set of rules that are applied in the design and manufacture of electricalinstallations and equipment to be...

IEC 61958:2000 pdf free download - High-voltage prefabricated switchgear andcontrolgear assemblies 1.1Scope This International Standard is applicable to voltage presence indicating systems (vPIS) incor-porated in a.c.switchgear and controlgear covered by IEC 60298 or lEC 60466. Voltage presence...

IEC 61851-25:2020 pdf free download - Electric vehicle conductive charging system 1 Scope This document applies to the DC EV supply equipment for charging electric road vehicles witha rated supply voltage of up to 480 v AC...

IEC 61839:2000 pdf free download - Nuclear power plants -Design of control rooms - Functional analysis and assignment 1 Scope and object This International Standard specifies functional analysis and assignment procedures (FAand A, sometimes called allocation of...