Teseq NSG 435, Руководство пользователя

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6.1 Standard-conform procedures
Test standards such as the IEC/EN 61000-4-2, Ed. 1.2:2001 give detailed informa-
tion about setting up a test rig, the organization of a test and the documenta-
tion.
The ESD simulator system NSG 435 is constructed and calibrated in accordance
with the requirements of the standards.
The test engineer cannot be relieved of the duty to study the applicable test pre-
scriptions closely and to adapt the conditions to the test object in question.
The necessary documents can be obtained directly from the IEC, ANSI, IEEE, etc.
or they can be obtained through the relevant national standards bureau.
6.2 Other conditions
It is not always possible to set up a test rig in precise conformity with the
standards. By observing a few basics, however, it is nevertheless possible to
make credible assessments of the interference immunity of a test object and
to obtain worthwhile pointers to ways of improving it.
An electrostatic discharge always exhibits high frequency properties with parts
of the spectrum extending to well beyond 1 GHz. Screening and filtering mea -
sures must therefore also be effective up into these frequency ranges.
The possible paths that the pulse may take have to be considered. The pulse
return path must, without doubt, be through the earth cable connected to the
simulator.
6 TEST PROCEDURES