文档介绍：Design Specifications of Engineering for
Telecommunication Power Supply Equipment Installation
Design Specifications of Engineering for
Telecommunication Power Supply Equipment Installation
a~H2~&$BB8JH83$$%iH$B.
@%BfSE(tb)ES%EH4E$&W.%%$lA3ZBS
fTR&,%$4E$~ihU%~~$J%&4+ErPf$-TYll9$:
1. -%$$4E$%ME+%******@4$B&B9Ih-%
4R$%- %W%5ERB$~******@4@#$,F%***@B@%&&5G
AT 1 &,ym@&@***@E+ ha W%4+k&%BEZ
tH83$$2$3~BA%Z.
2. =%rfj$#$%%hiTG*%J&@@$.******@a#$&
***@5G% &,T@%&&***@E+~875GkT6 h. ***@k$ErPf$-
TYll&4$2-b9%*:
1) &~+UkT$2&B%%%ZTSM%.%~k5ih-B4%
63%-
2) h-+&BV%******@B$BdM%ZTWB(J%$%&f$1
h-%4?k$%,
3. 3%83$lE$ihM-+(.$@$lh-%4%$%~&$%%E~
&***@fl#$&***@6GAT &.F%@&***@E%B$T875
GkT 8 h.
4. a%*$fE$ER$-TYU%4+2-Btl%%:
1) &-+$***@51h-SPr#$%39~S@#$,4~$Z#Z~
?%531%3%*$R$S~,
2) Gzwt+tc~raw$ztzrnewH0
%!2E(tb)B%R%R%E%o
%EE(@)Efl%E#$%%6B%H%G%%e
2. o. 5 ~fi$5i~mm~~m*,3% K~WBAT
z ooo ~.~R/J\T1 kw ~tif,smamrnhPawmm:
-2.
'&:B&aBiarieE% I. 215 g/cm3,BE)tl 25TF~)%#T,8af#iBG?Ejtl
g/cm\EiE)tl 20Cb9)%#T,~sE$.E% - V/ceIl.
SGE(i&)H$ER45&Yi&%$E%-48V. -48 V
$******@i24 VS%$$iW:B;tJ$E$~fJHE&$f$ER&S
b9BZ0
-******@Q%N*24VQ@$E%3lJaHB%%$ES$
$@&%BE'
%Ba+$h3-+ ri-9@&P %@&%(*BE) k%&&%(&%@)
E(V) k&E?2 He4 B Be4 Be4 B%
*cmV) +a&
*Ern(V) (MHz) (mV) (kHz) (mV) (kHd (mV)
-150 <5
-350 <SO
150-200 <3
-48 -40--57 <2 0-20 <ZOO