Standards

This part of IEC 60076 defines sound pressure and sound intensity measurement methods by which sound power levels of transformers reactors and their associated auxiliaries may be determined.

This part of IEC 60076 provides supporting information to help both manufactures and purchasers apply the measurement techniques described in IEC 60076-10 . The sources and characteristics of transformer and reactor sound are described. Practical on making measurements is given , and factors that may influence the accuracy of the methods are discussed. The applications guide also clarifies those factors which should be agreed between manufacturer and purchaser when specifying a transformer or reactor, and indicates why values measured in the factory may differ from those measured on site.

This part International standard IEC 76 identifies transformers according to their cooling methods, defines temperature limits details the methods of test for temperature -measurement it applies to transformers as defined in the scope of IEC 76-1.

This standard applies to the dimensional, mechanical and electrical requirements for non perforated blank and pre-recorded magnetic tape and for the associated recording and reproducing systems such as reel-to-reel, cassette and cart . The methods of measurements and the necessary tolerance to secure interchangeability of recordings are included.

This part of IEC 107 deals with the general methods of measurement of the audio channels of receivers for monophonic systems and multichannel sound systems. General considerations for the measurement are specified in IEC 107-1 and the measurement specific to multichannel sound systems are dealt with by IEC 107-3, IEC 107-4 and IEC 107-5 measurements for non-broadcast signals are dealt with by IEC 107-6.

The methods of measuring the electrical characteristics described in this standard apply particularly to broadcast television receivers designed for the reception of multichannel sound systems using subcarriers.

This part of IEC 107 deals with the standard conditions and methods of measurement on high definition television (HDTV) displays . Such may be used as an integral part of an HDTV receiver for direct off-air reception reception via cabled networks , or as a monitor for pre- recorded video home movies and games, other applications.

This standard deals only with the methods of measurement for colour - television picture tubes with there electron beams and shadow mask.

This recommendation applies to single high-voltage connecting wires insulated with thermoplastic material with a rated voltage up to and including 20 kV d.c. and a maximum working temperature of 85C. This wire was originally developed for use in television receivers, but may be suitable for similar applications.

This international standard describes the methods of measurement for assessing the performance characteristics of television transmitters. To assess all other characteristics, this standard needs to be used in conjunction with the publication quoted in clause2.