|
|
本帖最后由 zhangfc 于 2015-6-26 19:16 编辑 ( A4 F% ]# `2 N. v3 I3 a }
让梦飞翔 发表于 2015-6-26 16:58 4 \1 ~9 @! P8 M( z$ h9 |) g* M
还没查到哪里有的买?
5 e1 y" b: U7 X4 {, [0 q3 v, a; G这个东西,我们实验室有。好像从顺德商检局或质监局买的。
: D) q }; a" B/ i" j. d1 [6 b3 _5 z
这玩意只能测220V以上的,120V左右的测不了。: L, f. }9 V, d% }; G4 u% n0 D# U
DSH-0716# v" V* l3 f) L6 ^% u
If the relevant standard does not contain contradictory requirements, a voltage probe" [; O; ]/ T0 B- I4 j
having an input impedance of 100 MΩ or greater in parallel with an input capacitance of
7 f8 v; B$ R l# j4 E4 M& ?8 j1 t25 pF or less, shall be used for this test.
! D5 W9 R* D" Y8 U9 uFor other (automatic) equipment with special measurement techniques equivalent9 D8 M9 ]4 v# }9 a' b
measures shall be taken to ensure comparable results.4 o5 g C$ o4 r! m9 r r
Explanatory Notes:
" [( h0 g9 y+ z% C* wThis issue was raised at the 2008 CTL meeting after discussing the proficiency testing& ^/ p3 m0 {2 I! W9 f7 C. d
program on plug discharge 2007/2008. Participants used several different probe0 b L1 x4 B( s+ F# j: U# o
impedances, which caused inconsistent results. |
评分
-
查看全部评分
|