IEC 61058-1 clause 17.2 如何理解？
17.2 Electrical endurance testsWhere, in table 2, an auxiliary switch (A) is symbolizedin the test circuit, the tests for the two ON-positions of the specimen (S) are performed on twoseparate sets of test samples. The connection to the test load to be performed for the twotests is symbolized in table 2 by an auxiliary switch A.问题：如何理解这句话？
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