SIST IEC 60351-1:2005
(Main)Expression of the properties of cathode-ray oscilloscopes. Part 1: General
Expression of the properties of cathode-ray oscilloscopes. Part 1: General
Applicable to general-purpose cathode-ray oscilloscopes for measuring electrical quantities. Special definitions. Standard data. Conditions and methods for testing the properties. This publication supersedes IEC 60351 (1971).
Expression des qualités des oscillographes cathodiques. Premičre partie: Généralités
Applicable aux oscillographes cathodiques, d'usage général, destinés à la mesure des grandeurs électriques. Définitions particulières. Liste de caractéristiques. Conditions et méthodes d'essais pour la vérification des qualités. Annule et remplace la CEI 60351 (1971)
Izražanje lastnosti osciloskopov s katodno cevjo – 1. del: Splošno
General Information
Standards Content (Sample)
SLOVENSKI SIST IEC 60351-1:2005
STANDARD
junij 2005
Izražanje lastnosti osciloskopov s katodno cevjo – 1. del: Splošno
Expression of the properties of cathode-ray oscilloscopes – Part 1: General
ICS 17.220.20 Referenčna številk
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In addition to satisfying the requirements of IEC 60477, resistors satisfying the requirements of this standard are designed to have a small variation of resistance and a small phase displacement over the stated frequency range.
Because of the uncertainties in AC properties which can result from stray inductances, stray capacitances, eddy currents, dielectric absorption effects and skin effect, the AC resistors to which this standard applies are classified according to their construction (see Annex D), as follows:
a) Two-terminal resistor which each of one terminal both for current and potential;
b) Three-terminal resistor which has one more shield terminal (also could be called as guard terminal) connected to the electric screen than the two-terminal resistor to reduce the stray capacitances effect;
c) Four-terminal resistor which has independent current terminals and potential terminals to reduce the stray inductances and contact resistances;
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e) Four-terminal coaxial resistor which has two terminal-pairs with the outer shield conductors working as the low terminal of current or potential;
f) Two-terminal-pair resistor which has two terminal-pairs with the outer shield conductors working as the return path for the signal current (not grounded);
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This document applies to resistors intended for use as laboratory DC resistors (hereinafter
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Classes 0,000 05 to 10 and single or multi-dial resistors of accuracy Classes 0,000 5 to 10.
This document does not apply to:
1) resistors which are intended for use solely as permanently mounted circuit components,
2) resistors used on alternating current or on pulsed current,
3) active resistors,
4) series resistors and shunts which are considered as accessories of electrical measuring
instruments in the relevant IEC document (examples of these are as follows).
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EXAMPLE 2 IEC 60258: Direct acting recording electrical measuring instruments and their accessories.
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NOTE Common worldwide three-phase distribution systems are depicted in IEC 61010-1.
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These devices are fixed or portable. They are intended to be used indoors and/or outdoors.
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The power metering and monitoring devices (PMD) for electrical parameters described in this
document are used for general industrial and commercial applications.
This document does not address functional safety and cyber security aspects.
This document is not applicable for:
– electricity metering equipment that complies with IEC 62053-21, IEC 62053-22,
IEC 62053-23 and IEC 62053-24. Nevertheless, uncertainties defined in this document for
active and reactive energy measurement are derived from those defined in IEC 62053 (all
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– the measurement and monitoring of electrical parameters defined in IEC 61557-2 to
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– power quality instrument (PQI) according IEC 62586 (all parts);
– devices covered by IEC 60051 (all parts) (direct acting analogue electrical measuring
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- power quality instrument (PQI) according IEC 62586 (all parts);
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