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  • BSI
    PD 6591:1996, CENELEC Report R110-003:1995 Guidelines on how to use anechoic enclosures that do not fulfil the requirements regarding normalized site attenuation for pre-compliance tests of products
    Edition: 1996
    $411.69
    / user per year

Description of PD 6591:1996 1996

This guideline deals with the application of absorber-lined enclosures for radiated-emission tests according to CISPR 16 [1], CISPR 11 [2], CISPR 22 [3] and EN 50147-2 [4] in the frequency range of 30 - 1000 MHz.

Standard site acceptability criteria based on normalized site attenuation (NSA) measurements are given in [1, 4]. The chamber factor concept shall provide a method for more detailed evaluations of the performance characteristics of enclosures. Measured chamber factor data can, furthermore, be used to correlate test results from equipment under test (EUT) to open site results. Whereas NSA evaluates chamber performance with respect to theoretically calculated reference values, chamber factors are derived from comparative measurements between an enclosure and a good reference site.

If the measured site attenuation exceeds the “± 4 dB”-limit only in the frequency range of 30 - 200 MHz and by not more than ± 12 dB, then the methods described in this report may be applied. For equipment that is no larger than half a wavelength (including cables) the enclosure can then be used at the expense of higher test uncertainty in the lower frequency range.



Standard NumberPD 6591:1996, CENELEC Report R110-003:1995
TitleGuidelines on how to use anechoic enclosures that do not fulfil the requirements regarding normalized site attenuation for pre-compliance tests of products
StatusDefinitive
Publication Date1996-04-15
Identical National Standard OfCENELEC Report R110-003:1995
DescriptorsFree-field rooms, Acoustic engineering, Frequency measurement, Acoustic testing rooms, Radiators, Test equipment, Acceptance (approval), Performance, Frequencies
ICS33.100.01 Electromagnetic compatibility in general
CommitteeGEL/210
ISBN0 580 25272 8
PublisherBSI
Pages32

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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