This supplement provides graphic symbols for use on all electrical or electronics diagrams except for those required for: (1) Logic circuit diagrams. See ANSI/IEEE Std 91-1984 [4]. (2) Architectural plans. See ANSI Y32.9-1972 [2] and IEC Publication 617 (1983) [22] Part 11, ch IV. (3) Street maps and building system layouts for cable TV application. See ANSI/IEEE Std 623-1976 [8] and IEC Publicatiun 617 (1983) [22], Part 11, ch 111.

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This application guide applies to ac high voltage circuit breakers rated in accordance with the methods given in American National Standard Rating Structure for A C High-Voltage Circuit Breakers, C37.04-1964(R1969) and listed in American National Standard Preferred Ratings and Related Required Capabilities for A C High-Voltage Circuit Breakers, C37.06-1971. Circuit breakers rated and manufactured to meet other standards, or used in switchgear assemblies, should be applied in accordance with… read more application procedures adapted to their specific ratings or applications. read less

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This application guide for capacitance current switching applies to ac high-voltage circuit breakers rated in accordance with American National Standard Requirements for Capacitance Current Switching for A C High-Voltage Circuit Breakers, C37.073-1972. It is intended to supplement the American National Standard Application Guide for AC High-Voltage Circuit Breakers, C37.010-1972 (IEEE Std 320-1972), and specifically, to enlarge on Section 4.14.3, Capacitor Switching, and Section 4.14.4, Line… read more Charging Switching. Circuit breakers rated and manufactured to meet other standards should be applied in accordance with application procedures adapted to their specific ratings. read less

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FM and television broadcast receivers are frequently potential sources of interference to other FM and television broadcast receivers as well as to receivers in other services. In the range of 300 kc to 25 Mc, this interference can arise from high-level receiver signals such as the IF and, in television receivers, the horizontal deflection system. This standard defines a method for obtaining a measure of the interference conducted by the power line from these various interference sources in the… read more frequency range of 300 kc to 25 Mc. It supersedes and replaces the following three standards: IRE Standards on Receivers: Methods of Measurement of Interference Output of Television Receivers in the Range of 300 to 10,000 kc, 1954 (54 IRE 17.S1), IRE Standards on Methods of Measurement of the Conducted Interference Output of Broadcast and Television Receivers in the Runge of 300 kc to 25 Mc, 1956 (56 IRE 27.S1), and 'Supplement to IRE Standards on Receivers: Methods of Measurement of Interference Output of Television Receivers in the Range of 300 to 10,000 kc, 1954 (54 IRE 17. SI) (58 IRE 27. SI). This standard describes standard input signals, the equipment set-up and measurement techniques. read less

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This standard prescribes methods for performing test specified in American National Standard General Requirements for Distribution, Power, and Regulating Transformers, C57.12.00-1973 (IEEE 462-1973) and in the separate transformer standards of the C57.12 Series of American National Standards.

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A discussion of the available standard phase shifters, the general principles of measurement techniques, and the basic measurement precautions is included in this Report along with a bibliography of pertinent literature. This is one of a series of such reports planned under a program being carried out by the IEEE.* The data in this Report have been assembled by a special subcommittee working in the field of microwave phase-shift measurements.

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Defines the frame format, including delimiters, addressing, routing information, and frame-check sequence (FCS), to allow operation on a single ring or on multiple rings connected by source routing or transparent bridges, and introduces medium access control (MAC) frames, timers, counters, and priority stacks (see Section 3); (2) Defines the MAC protocol. The finite-state machine and state tables are supplemented with a prose description of the algorithms (see Section 4); (3) Defines the… read more physical layer (PHY) functions of symbol encoding and decoding, symbol timing, and latency buffering (see Section 5); (4) Describes the services provided by the MAC to the station management (SMT) and the logical link control sublayer (LLC) and the services provided by the PHY to SMT and the MAC. These services are defined in terms of service primitives and associated parameters (see Section 6); (5) Defines the 4 and 16 Mh/s, shielded twisted pair attachment of the station to the medium including the definition of the medium interface connector (MIC) (see Section 7); (6) Includes the PICS proforma in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ISO 9646-2 [7]1 (see Annex C). read less

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Specifies the basic principles and techniques which provide the minimum security measures required for effective international PIN management.

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1.1 Scope 1.1.1This standard applies to newly produced, automatic storage water heaters having input ratings of 75,000 Btu per hour (21 980 W) or less (see Part IV, Definitions), hereinafter referred to as water heaters or appliances, constructed enti

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Addenda 2 to ANSI Z21.15-1997/CGA 9.1-M97, Manually Operated Gas Valves for Appliances, Appliance Connector Valves and Hose End Valves

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Scope Details test and examination criteria for gas appliance pressure regulators for use with natural, manufactured and mixed gases, liquefied petroleum gases and LP gas-air mixtures. Such devices, either individual or in combination with other contr

定价： 683元 / 折扣价： 581 元