小米 发表于 2012-9-5 14:32

DSH 869 Application of the linear regression formula


http://decisions.iecee.org/icons/ecblank.gif DSH 869

Application of the linear regression formula
4.15 – 12.7.1
60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)


Question:
If the ballast is fixed to a thermo-resisting bush, which is subsequently fixed into a thermoplastic support part of the body. Does the linear regression formula apply for both materials?
Decision:
Yes, even if the thermo-resisting bush is unaffected, it may conduct the heat to the thermo sensitive part. Therefore bothmaterials must be tested. When the ballast is fixed to a thermoplastic body, the test has to be done.


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