IEC 60704-2-2 pdf download
IEC 60704-2-2 pdf download Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 2-2: Particular requirements for fan heaters The noise emission shall be determined with the appliance at the highest speed setting and maximum heating for normal permanent use. Oscillating mechanism, if any, shall be switched on. NOTE Other possible speed...
IEC 60728-1-2 pdf download
IEC 60728-1-2 pdf download Cable networks for television signals, sound signals and interactive services – Part 1-2: Performance requirements for signals delivered at the system outlet in operation 1 Scope This part of IEC 60728 provides the minimum performance requirements to be fulfilled in operation at the system outlet or terminal input and describes the summation criteria for the impairments...
IEC 60738-1 pdf download
IEC 60738-1 pdf download Thermistors – Directly heated positive temperature coefficient – Part 1: Generic specification 1 Scope This part of IEC 60738 describes terms and methods of test for positive step-function temperature coefficient thermistors, insulated and non-insulated types typically made from ferro-electric semi-conductor materials. It establishes standard terms, inspection procedures and methods of test for use in detail specifications...
IEC 60851-2 pdf download
IEC 60851-2 pdf download Winding wires – Test methods – Part 2: Determination of dimensions 1 Scope This part of IEC 60851 specifies the following method of test: – Test 4: Dimensions. For definitions, general notes on methods of test and the complete series of methods of test for winding wires, see IEC 60851 -1 . 2 Normative references The...
IEC 60904-4 pdf download
IEC 60904-4 pdf download Photovoltaic devices – Part 4: Reference solar devices – Procedures for establishing calibration traceability This part of lEC 60904 sets the requirements for calibration procedures intended to establishthe traceability of photovoltaic reference solar devices to Sl units as required by lEC 60904-2. This standard applies to photovoltaic(PV) reference solar devices that are used to measurethe irradiance...
IEC 60909-3 pdf download
IEC 60909-3 pdf download Short-circuit currents in three-phase AC systems – Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth 1Scope and object This part of lEC 60909 specifies procedures for calculation of the prospective short-circuitcurrents with an unbalanced short circuit in high-voltage three-phase a.c. systems operatingat nominal frequency 50 Hz or...
IEC 60951-4 pdf download
IEC 60951-4 pdf download Nuclear power plants – Instrumentation important to safety – Radiation monitoring for accident and post-accident conditions — Part 4: Equipment for continuous in-line or on-line monitoring of radioactivity in process streams 4 Design principles 4.1 General Except where otherwise specified, all the requirements specified in Clause 4 of IEC 60951 -1 shall be carried out, unless...
IEC 60966-2-3 pdf download
IEC 60966-2-3 pdf download Radio frequency and coaxial cable assemblies – Part 2-3: Detail specification for flexible coaxial cable assemblies – Frequency range 0 MHz to 1 000 MHz, IEC 61169-8 connectors Full information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table. This detail specification is to...
IEC 60966-2-5 pdf download
IEC 60966-2-5 pdf download Radio frequency and coaxial cable assemblies – Part 2-5: Detail specification for cable assemblies for radio and TV receivers – Frequency range 0 MHz to 1 000 MHz, IEC 61169-2 connectors This detail specification applies to flexible coaxial cables described in lEC 60096-2. lt relatesto cable assemblies for radio and TV receivers,and in particular to the...
IEC 61000-4-7 pdf download
IEC 61000-4-7 pdf download Electromagnetic compatibility (EMC) – Part 4-7: Testing and measurement techniques – General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto This part of lEC 61000 is applicable to instrumentation intended for measuring spectralcomponents in the frequency range up to 9 kHz which are superimposed on the fundamentalof the...