Immunity to power frequency magnetic fi elds is performed by setting
up current fl ow in a loop around the product or preferably by placing
the product within the confi nes of a Helmholtz coil.
Table 25.8 : Test equipment
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Surge generator
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Dips and interruptions
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Signal generator, power amplifi ers, antennas |
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In immunity testing, the confi guration and operating conditions of
the equipment under test can be very important. These conditions are
usually specifi ed in the EMC standard applicable to the product but in
the absence of specifi c information the test engineer must attempt to
adjust the conditions for maximum sensitivity to the applied
disturbance.
Table 25.9 : Product development process
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Prototype
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Pre-compliance EMC tests
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Conformity in production tests |
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EMC re-assessment
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