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引用第6楼安规007于2011-05-06 17:24发表的 :! _, `& {8 \: z. r! `
2 O* S. O ~9 [TNV供电也属于三类吗? 有没有标准依据啊,想看看。
, a" c# R, [! l6 u; ITNV电路也算是危险电压啊# A( \2 }6 s! y9 _
1.2.8.6
$ D* e0 o+ Z; n: gHAZARDOUS VOLTAGE; C* E8 |$ _& E+ a; B( k
.......
9 t7 [3 [ _& G* MCLASS III EQUIPMENT
- m' Q/ a2 ?8 Q* b+ j% H0 Aequipment in which protection against electric shock relies upon supply from SELV CIRCUITS! g9 \4 L6 l1 i5 E) u+ s' ?
and in which HAZARDOUS VOLTAGES are not generated/ Q% \6 K) d! {7 x. E3 h$ Q6 u; l$ M
/ u3 I- }7 M7 U! zHAZARDOUS VOLTAGE: voltage exceeding 42,4 V peak, or 60 V d.c., existing in a circuit
% Q$ L, V. Y5 i, d Uthat does not meet the requirements for either a LIMITED CURRENT CIRCUIT or a TNV CIRCUIT3 Q2 h( g! n, g8 x h& W
$ U v+ @4 w5 Y7 m p( e' k- o+ k所以TNV电路时没有HAZARDOUS VOLTAGE。
$ }( K" U: t I! ]8 `此外,我们的一份报告也是这样写的 |
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