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引用第40楼barry于2007-07-26 09:20发表的 :
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ADAPTOR 适用于 Overvoltage category 2 ,5 I) R" r7 {8 V$ l
5 x% D# _5 O3 Z2 ~% ^' j. HXDSL 不适用于电网的 Overvoltage category !!!
# E6 O4 S" M& lA SECONDARY CIRCUIT derived from an AC MAINS SUPPLY will normally be Overvoltage Category I if
* O( a6 i/ W* m, ?) {" ^the PRIMARY CIRCUIT is Overvoltage Category II.
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+ Y/ v' h$ ^8 m2 J( S' LTransient overvoltage: 1 T' G( s! ]' l7 a7 I4 i
1 500 Vpeak if the circuit connected to the TELECOMMUNICATION NETWORK is a TNV-1 CIRCUIT5 ~9 s+ P$ ]/ `* A# \
or a TNV-3 CIRCUIT; and" N/ l' m( Z, L' W6 h2 ^
– 800 Vpeak if the circuit connected to the TELECOMMUNICATION NETWORK is an SELV CIRCUIT
% T: `( ?. `2 l# o* S, wor a TNV-2 CIRCUIT. |
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