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引用第40楼barry于2007-07-26 09:20发表的 :& ], ~+ K6 }; h6 v
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# L# ?, Y+ ^, d& r, J0 n1 f) `* b0 H4 fADAPTOR 适用于 Overvoltage category 2 ,8 A. w, Z$ d$ U i
$ k1 B6 a. q4 \% y3 E9 q5 d vXDSL 不适用于电网的 Overvoltage category !!! . |, k4 a: {( e2 c/ ]
A SECONDARY CIRCUIT derived from an AC MAINS SUPPLY will normally be Overvoltage Category I if& f9 q: b' k& g* Q% w4 o0 x) v
the PRIMARY CIRCUIT is Overvoltage Category II.
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: I& ?( }8 _) L, O0 LTransient overvoltage: 4 D* j" P) u8 T! [& h( _3 J
1 500 Vpeak if the circuit connected to the TELECOMMUNICATION NETWORK is a TNV-1 CIRCUIT
9 o2 s" M& O9 d+ j# e0 qor a TNV-3 CIRCUIT; and; E& u" y; V; f V9 f
– 800 Vpeak if the circuit connected to the TELECOMMUNICATION NETWORK is an SELV CIRCUIT
% T0 g$ B k6 `1 S3 Por a TNV-2 CIRCUIT. |
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