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EN60204-1的接地电阻值没有明确规定,是否能按0.1欧姆?4 S& m% `8 A% b3 E
( ? a4 C( k, LTest 1 – Verification of the continuity of the protective bonding circuit
% b5 _2 |3 f b s* PThe resistance of each protective bonding circuit between the PE terminal (see 5.2 and
. M/ J! c# @+ X$ N3 }% FFigure 3) and relevant points that are part of each protective bonding circuit shall be& x! Q- h/ ]; e2 e! J# Y7 Z3 i
measured with a current between at least 0,2 A and approximately 10 A derived from an
* \ |. @5 m. A4 P$ C6 {, oelectrically separated supply source (for example SELV, see 413.1 of IEC 60364-4-41)$ E$ g5 x7 G9 k }8 y
having a maximum no-load voltage of 24 V a.c. or d.c.. It is recommended not to use a PELV& P E) I$ k+ W& Y: g/ m' x. k
supply since such supplies can produce misleading results in this test. The resistance | measured shall be in the expected range according to the length, the cross sectional area | and the material of the related protective bonding conductor(s). |
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