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IEC 61340-4-7 Ed. 3.0 en:2025

Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization
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IEC 61340-4-7 Ed. 3.0 en:2025

Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization

IEC 61340-4-7 Ed. 3.0 en:2025
IEC 61340-4-7:2025 provides test methods and procedures for evaluating and selecting air ionization equipment and systems (ionizers). This document establishes measurement techniques, under specified conditions, to determine offset voltage (ion balance) and decay (charge neutralization) time for ionizers. This document does not include measurements of electromagnetic interference (EMI), or the use of ionizers in connection with ordnance, flammables, explosive items or electrically initiated explosive devices. As contained in this document, the test methods and test conditions can be used by manufacturers of ionizers to provide performance data describing their products. Users of ionizers are urged to modify the test methods and test conditions for their specific application in order to qualify ionizers for use, or to make periodic verifications of ionizer performance. The user will decide the extent of the data required for each application.
This edition includes the following significant technical changes with respect to the previous edition:
a) in Figure 5, a NOTE 3 was added to clarify that for AC bars and grids, a single emitter alternating between +/ polarity is used;
b) in Annex B, the relative error for measurement equipment was updated to include the consideration for the resolution of the voltmeter.
SDO IEC: International Electrotechnical Commission
Document Number IEC 61340
Publication Date Not Available
Language en - English
Page Count 34
Revision Level 3.0
Supercedes
Committee 101
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