La CEI 60255-24:2013 établit un format pour les fichiers contenant des données sur les événements et les formes d'ondes des transitoires obtenus à partir des réseaux électriques ou de leur modélisation. Le format est destiné à fournir une forme facilement interprétable pour une utilisation dans l'échange de données. La norme est destinée aux fichiers stockés sur des supports physiques actuellement utilisés tels que des disques durs externes portables, des clés USB, des disques à mémoire flash, des CD et des DVD. La présente norme établit un format commun pour les fichiers de données et le support d'échange nécessaire pour échanger des données de différents types sur les défauts, les essais et la simulation. Les principales différences par rapport à l'édition précédente sont les suivantes:- cette nouvelle édition autorise un seul format de fichier (avec extension .CFF) à la place de quatre fichiers séparés;- l'unique fichier avec extension .CFF contient quatre sections d'information correspondant à .CFG, .INF, .HDR, et .DAT. La section DAT est en codage ASCII ou Binaire;- les types de fichiers de données complémentaires suivants sont également pris en charge: binary32 et float32.

The protocol, device discovery, connection management, and device-control procedures used to facilitate interoperability between audio- and video-based end stations that use IEEE 1722-based streams on IEEE 802-based networks are specified.

Terminology and test methods for describing the performance of waveform recorders are presented in this standard.

A guide to evaluating electromagnetic immunity of medical devices against radiated radio-frequency (RF) emissions from common RF transmitters is provided in this recommended practice (e.g., two-way radios; walkie-talkies; mobile phones; wireless-enabled tablets, e-readers, laptop computers, and similar devices; RFID readers; networked mp3 players; two-way pagers; and wireless personal digital assistants [PDAs]). A comprehensive test or a guarantee is not provided by this protocol but, instead, a basic evaluation is given that can help identify medical devices that might be particularly vulnerable to interference from common RF transmitters. Existing or newly purchased medical devices can be evaluated by this ad hoc test protocol or the protocol can be implemented for prepurchase evaluation. This recommended practice applies to medical devices used in health-care facilities but can also be adapted to medical devices in home health-care or mobile health-care settings. It does not apply to implantable medical devices (e.g., pacemakers and defibrillators), transport environments such as ambulances and helicopters, or RF transmitters rated at more than 8 W of output power. Testing with transmitters greater than 8 W in health-care facilities is not recommended because of possible adverse effects on critical care medical devices that are in use in nearby areas of the facility. Finally, in-band RF interference where the fundamental frequency of an RF transmitter overlaps with frequencies used by a hospital wireless network or monitoring or other medical device wireless links is not addressed by this recommended practice.

Excitation system and power system stabilizer models suitable for use in large-scale system stability studies are presented. Important excitation limiters and supplementary controls are also included. The model structures presented are intended to facilitate the use of field test data as a means of obtaining model parameters. The models are, however, reduced order models and do not necessarily represent all of the control loops of any particular system. The models are valid for frequency deviations of ±5% from rated frequency and oscillation frequencies up to 3 Hz. These models would not normally be adequate for use in studies of subsynchronous resonance or other shaft torsional interaction behavior. Delayed protective and control features that may come into play in long-term dynamic performance studies are not represented. A sample set of data for each of the models, for at least one particular application, is provided.

Electrical, dimensional, and related requirements for power transformer and reactor bushings that have basic impulse insulation levels (BILs) of 150 kV and above are covered. Specific values for dimensional and related requirements that are to be interpreted, measured, or tested, in accordance with IEEE Std C57.19.00™, are provided.

The methods for assessing and predicting the reliability of software, based on a life-cycle approach to software reliability engineering (SRE), are prescribed in this recommended practice. It provides information necessary for the application of software reliability (SR) measurement to a project, lays a foundation for building consistent methods, and establishes the basic principle for collecting the data needed to assess and predict the reliability of software. The recommended practice prescribes how any user can participate in SR assessments and predictions.

Detailed procedures for interpreting Dissolved Gas Analysis results are described in this guide. The document details: 1) Overview of gas generation in transformer and DGA process; 2) The purpose and application of DGA; 3) DGA quality verification and DGA limitations; 4) DGA interpretation and norms; 5) Fault type definitions and identification; 6) Case studies and interpretation example. The intent is to provide the operator with useful information concerning the serviceability of the equipment. An extensive bibliography on gas evolution, detection, and interpretation is included.

This standard applies to alternating current (ac) switchgear, designed for both indoor and outdoor installation and for operation at service frequencies up to and including 60 Hz on systems having voltages above 1000 V. This standard is applied in relevant equipment standards by a normative reference to this standard, IEEE Std C37.100.1, on a section or clause-by-clause basis. Annex A of this standard provides recommendations for its application. The inclusion of this standard as a normative reference shall not imply that all of the requirements contained herein apply as a default. In the absence of a normative reference, this standard shall be considered informative only. In case of a conflict in requirements, the requirements of the relevant equipment standard shall prevail.

The measurement of thermal resistivity of soil and backfill materials to include concrete, engineered backfills, grout, rock, sand, and any other material used to encase the cable system installed in the ground is covered in this guide. A thorough knowledge of the thermal properties of a soil or backfill material enables the user to properly design, rate, and load underground cables. The method used is based on the theory that the rate of temperature rise of a line heat source is dependent upon the thermal constants of the medium in which it is placed. The designs for both laboratory and field thermal probes are also described in this guide.

Direction for the implementation of the requirements of IEC/IEEE 60780-323 as they apply to the specific features of safety-related actuator qualification are provided. This standard establishes criteria for qualification of safety-related actuators, and actuator components, in Nuclear Power Generating Stations in order to demonstrate their ability to perform their intended safety functions under all required conditions.

Minimum performance specifications and testing methods for the evaluation of radiation portal monitors, also known as RPMs, are contained in this standard. These monitors are large-size permanently mounted-type instruments. These instruments are primarily designed for the detection of radioactive materials emitting gamma rays and neutrons. The specifications for general, radiological, environmental, electromagnetic and mechanical performance are given and the corresponding testing methods are described. The documentation to be provided by the manufacturer is listed as part of the requirements. A number of informative annexes that provide useful information and guidance in implementing this standard are also contained in this standard.

Information and general recommendations of instrumentation, circuitry, calibration, and measurement techniques of no-load losses (excluding auxiliary losses), excitation current, and load losses of power and distribution transformers are provided. The guide is intended as a complement to the test code procedures given in Clause 8 and Clause 9 of IEEE Std C57.12.90.

Electrical, dimensional, and mechanical characteristics are covered, taking into consideration certain safety features, for current and inductively coupled voltage transformers of types generally used in the measurement of electricity and the control of equipment associated with the generation, transmission, and distribution of alternating current. The aim is to provide a basis for performance and interchangeability of equipment covered and to assist in the proper selection of such equipment. Safety precautions are also addressed. Accuracy classes for metering service are provided. The test code covers measurement and calculation of ratio and phase angle, demagnetization, impedance and excitation measurements, polarity determination, resistance measurements, short-time characteristics, temperature rise tests, dielectric tests, and measurement of open-circuit voltage of current transformers.

The performance requirements for tritium monitors used for monitoring airborne tritium radioactivity are provided in this standard. It also provides test methods for establishing a monitor™s performance characteristics.

This standard is intended to cover procedures for compliance testing of a wide variety of transmitters designed to operate in licensed radio services, including but not limited to: Commercial Mobile Radio Services, Public Mobile Services, Cellular Radiotelephone Service, Personal Communication Services, Miscellaneous Wireless Communication Services, Private Land Mobile Radio Services, and Personal Radio Services. Tests methods are provided for measurement of radiated and conducted emissions, RF power, out-of-band emissions, frequency stability, and other regulatory requirements for a variety of devices. This standard does not consider test methods for requirements specific to maritime and aviation transmitters, ground-based radars, satellite equipment, fixed microwave equipment, or broadcast transmitters. The latter equipment may be covered in future revisions of this standard.