Name: IEC 60050-161:1990/AMD2:1998 — Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 161: Electromagnetic compatibility
SKU: IEC 60050-161:1990/AMD2:1998
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IEC 60050-161:1990/AMD2:1998 PDF — Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part… — GOST Standards

Basic Concepts:
- Emitter of Electromagnetic Disturbance – Devices or systems producing voltage, currents, or electromagnetic fields causing disturbances.
- Susceptible Device – Equipment whose performance can be affected by electromagnetic disturbances.
Types of Disturbances:
- Discontinuous Disturbance – Electromagnetic events with distinct, separable effects.
- Damped Oscillatory Wave – Oscillations commonly between 100 kHz and a few megahertz with specific damping characteristics.
- Ring Wave – A type of damped oscillation with a damping time constant near one period.
EMC Measurements and Currents:
- Differential Mode Current – Half the difference magnitude of currents in two conductors of a cable.
- Common Mode Current – Sum magnitude of currents in multiple conductors including shields or screens.
- Common Mode Impedance – Ratio of common mode voltage to common mode current.
Immunity Testing:
- Immunity Test Level – The test signal level simulating electromagnetic disturbances during immunity evaluations.
Equipment Classification:
- Professional Equipment – Devices used in trade or industry not intended for general public sale, which may require proper marking.
Broadband and Narrowband Disturbances:
- Broadband Disturbance – Electromagnetic disturbance with bandwidth exceeding that of measuring apparatus or receivers.
- Narrowband Disturbance – Disturbance or spectral components with bandwidth less or equal to measurement devices.
Power Supply and Network Terms:
- Point of Common Coupling (PCC) – Closest point in a power supply network to a load where other loads may also connect.
Voltage Variations and Flicker:
- Voltage Change – Variations in RMS or peak voltage values sustained over time.
- Voltage Fluctuation – Series or continuous voltage changes affecting device operation.
- Short-Term Flicker Indicator (Pst) – Quantitative flicker measure over short intervals (typically 10 minutes).
- Long-Term Flicker Indicator (Plt) – Flicker measure over longer intervals (typically 2 hours).
- Short Interruption – Loss of supply voltage for durations between specified limits, commonly less than one minute.

IEC 60050-161:1990/AMD2:1998

Abstract

IEC 60050-161:1990/AMD2:1998 – Electromagnetic Compatibility Vocabulary Amendment

Overview

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