The IEC 61340-4-7 standard published by the International Electrotechnical Commission (IEC) defines test methods and procedures for the evaluation and selection of air ionization equipment and systems (ionizers).
This standard provides measurement techniques for determining the offset voltage and decay time for ionizers under certain conditions. This standard does not cover electromagnetic interference (EMI) measurements or the use of ionizers associated with ammunition, flammable materials, explosives or electrically initiated explosive devices. As contained in this standard, test methods and test conditions are used by ionizer manufacturers to provide performance data describing their products. It is recommended that ionizer users change test methods and test conditions for their particular application to make ionizers suitable for use or to perform periodic verifications of ionizer performance.
Significant technical changes have been made in the last update of the IEC 61340-4-7 standard. For example, the use of contact plate voltage measurements has been added in addition to the previous non-contact plate voltage measurements.
Special requirements for equipment categories within the scope of this standard are organized under the following headings:
Grounding is the primary method used to limit static charge while protecting elements that are sensitive to electrostatic discharge in the work environment. However, grounding methods are not effective in removing static charges from the surfaces of non-conductive or insulated conductive materials. To reduce this load, air ionization methods are used through ionizing systems.
The preferred way to evaluate an ionizer's ability to neutralize a static charge is to directly measure the charge reduction rate. The charges to be neutralized are located on insulated conductors as well as insulators.
This standard includes four practical methods of air ionization:
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization offers ionization test services among standard electrostatic test methods for certain applications, within the scope of IEC 61340-4-7 standard, with its trained and expert staff and advanced technological equipment. gives.
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