|
7#
楼主 |
发表于 2021-10-14 17:26
|
只看该作者
Berryang 发表于 2021-10-14 15:531 T# k5 ]3 @4 C5 y+ Z( @
1. 依据5.3.2。 ES2 是不可以触及的。(不能单看Clause 4.) 只要是ES2, 至少需要basic safeguard.$ R @. f* n" N' h o
" i( C9 }$ k. R2 u* P5 J2. ... 7 }% `2 I, c2 e" x; ]- F/ ~$ L
2. 6.2.2.2是指的中性线断开吧: 是讲的PE, 二类设备没有PE,故不需要。 有些一类设备,二类结构也不需要。
/ j& n* d* G: ~) I8 M" y6.2.2.2 Fault condition No. 1, \( u3 w2 E3 t$ W+ O% C
Depending on the kind of EQUIPMENT, several safety degrees of the protective conductor are to be distinguished (see IEC 61140).! D' I1 A, q _: h; v# D4 S! ?
Single-phase EQUIPMENT not reliably earthed shall be tested with loss of protective earth connection (switch e) in combination with normal and reverse polarity (switch p).
* p/ u5 y' v! J5 Q+ O/ oThree-phase EQUIPMENT not reliably earthed shall be tested with loss of protective earth connection (switch e).
" j1 D% o2 ^/ pUnless decided otherwise by the EQUIPMENT product committee, the requirements of this" D/ P( r7 ~- }$ a
subclause do not apply to reliably earthed EQUIPMENT (e.g. see IEC 60364-7-707) which is
+ f9 a- b+ a: r( l/ R+ M$ \: oconnected to the supply either permanently, or by means of plugs and sockets which are of: _9 l' {* \+ Y
industrial grade (for example, connectors specified in IEC 60309-1 or a comparable national/ O9 K8 q3 |# q1 h& u+ O' G9 D
standard).1 b E p! w% b% S! {
在IEC62368-1 2018版本中对应的IEC6099:2016,没有看到那个地方有写到代表是PE呢,请大佬帮忙指导, ~; U8 K) ?" @+ T3 r5 e0 I/ N
2 Z) ^" \4 q/ C3 N( \* }
但是看翻译稿对应的GB/T12113,中线断开(开关n),这里指的不是PE吧
% B: U. v7 {9 E, B/ P* F0 E
, }/ ?- m2 i: ~0 s* a3. 这样说吧, ES2 限值为25mA, 用FIGURE 5 U3 测定。
: M" W$ H- d/ z用FIGURE 5 U3测试,AC:ES2限值是7.07mAPeak, DC: ES2限值是25m吧
- ^: v4 a ~ h2 v4 J* x) u; _8 g. G D. I; a0 }
% k4 }0 W, M1 ?( _) p" j
|
|