IEC 61977 pdf download.Fibre optic filters – Generic specification 4.1.6 Normative reference extensions Normative reference extensions are used to identify independent standards specifications or other reference documents integrated into blank detail specifications. Unless a specified exception is noted, additional requirements imposed by an extension are mandatory. Usage is primarily intended to merge associated components to form hybrid devices, or integrated...
BS IEC 60736 pdf download.Testing equipment for electrical energy meters 2. Units and definitions The units used in this report are those used by the International Electrotechnical Commission (IEC). . 2.1 Testing equipment for electrical energy meters; meter testing equipment (MTE) An assembly of apparatus to supply energy to meters under test and to measure this energy. 2.2 Power x...
ISO IEC 13660 pdf download.Information technology – Office equipment – Measurement of image quality attributes for hardcopy output – Binary monochrome text and graphic images 1 Scope This International Standard specifies device-independent image quality attributes, measurement methods, and analytical procedures to describe the quality of output images from hardcopy devices. This International Standard is applicable to human-readable documents composed of...
IEC 60322 pdf download.Railway applications – Electric equipment for rolling stock – Rules for power resistors of open construction 1 Scope and object This International Standard gives the rules for all power resistors (for example, braking, heating, snubber and filter) used in the power and auxiliary circuits on board rolling stock irrespective of the circuit and the type of vehicle...
IEC 60811-2-1 pdf download.Common test methods for insulating and sheathing materials of electric and optical cables 1 General 1.1 Scope This standard specifies the test methods to be used for testing polymeric insulating and sheathing materials of electric and optical cables for power distribution and telecommuni- cations, including cables used on ships and in offshore applications. This standard gives the...
IEC 60811-1-1 pdf download.Common test methods for insulating and sheathing materials of electric cables and optical cables 1 Scope The International Standard IEC 6081 1 -1 specifies the test methods to be used for testing polymeric insulating and sheathing materials of electric cables for power distribution and telecommunications including cables used on ships, and in offshore applications. This section of...
IEC 60092-504 pdf download.Special features – Control and instrumentation 1 Scope This part of IEC 60092 deals with electrical, electronic and programmable equipment intended for control, monitoring, alarm and protection systems for use in ships. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60092. For dated...
IEC 60793-1-22 pdf download.Measurement methods and test procedures – Length measurement 1 Scope This part of IEC 60793 establishes uniform requirements for measuring the length and elongation of optical fibre (typically within cable). The length of an optical fibre is one of the most fundamental values and shall be known for the evaluation of transmission characteristics such as losses and...
IEC 61753-2-3 pdf download.Fibre optic interconnecting devices and passive components performance standard 1 Scope This part of IEC 61 753 contains the minimum initialisation test and measurement require- ments and severities which a branching device shall satisfy in order to be categorised as meeting the IEC standard. The requirements cover balanced non-connectorised single-mode 1 ×N and 2×N non-wavelength-selective branching devices...
IEC TS 61400-13 pdf download.Wind turbine generator systems 1 General 1 .1 Scope and object This part of IEC 61 400 deals with mechanical load measurements on wind turbines. It mainly focuses on large (>40 m 2 ) electricity generating horizontal axis wind turbines. However, the methods described might be applicable to other wind turbines as well (for example, mechanical...