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INPUT CARDS
INPUT CARDS
12
12.2.10 GN310B/GN311B type testing of the HV channels
Channel to chassis voltages (and test voltages)
To qualify the insulation as 1000 V CAT III and 600 V CAT IV, certain tests are per-
formedonsomecardsduringtheengineeringdesignqualicationphase.These
tests are known as type tests. These tests are described in the IEC61010-1:2010 and
IEC61010-2-030:2010 standards. The principle of the tests is described below.
For the isolation barrier test, the AC test below (see Fig. 12.27) is used. The test value
meets the requirements for 1000 V CAT III and 600 V CAT IV. Tests are conducted for
5 s (testing electric strength of solid insulation) and 1 minute (long term stress of solid
insulation). For details, please refer to IEC61010-1 and IEC 61010-2-030.
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Fig. 12.27 AC type test channel to chassis