|
EN60204-1的接地电阻值没有明确规定,是否能按0.1欧姆?
4 o# s) p K% z6 Y0 h
2 G$ a& `1 r/ I+ j, q4 G4 aTest 1 – Verification of the continuity of the protective bonding circuit$ p& T5 M9 T9 N( X: B
The resistance of each protective bonding circuit between the PE terminal (see 5.2 and1 Q& r. c& r6 O& q: w
Figure 3) and relevant points that are part of each protective bonding circuit shall be
& u% M! t# B2 S1 E; G3 S8 ]- K1 Qmeasured with a current between at least 0,2 A and approximately 10 A derived from an6 k( ]+ V8 b0 t8 D( ]/ N" P& c: V( f
electrically separated supply source (for example SELV, see 413.1 of IEC 60364-4-41)
, P3 c, E% O7 W/ }. _, s6 b6 hhaving a maximum no-load voltage of 24 V a.c. or d.c.. It is recommended not to use a PELV
% H" o6 t, J1 z4 F4 ^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). |
|
|