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ַϺɽI^܇ͤ·188Ūؔd@?HI@35̖101(ؘ)

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ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պ

≺Ӱ푾ۺ}UzӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պڄ^Љ̫˾ۺ}UzÛۺ}Uz㲻ҎMЄ

IH---cIT---|lIJe

IHoֹ՚в|lͨ^·ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պbƷͬضȿɏ20C25CҜµ߹IToֹ՚оۺ}UzrСbƷͬضȿɏ20C25CҜµС
҂ĮbƷfITcIH֮Ƞ21ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պijЩbƷҲܵ1.71߀Щtܸ_31ϺbIJͬԼ׃Q@ֵ

}Uz܉MРBD׃᣿Ӳܱ֠B׃

oδųrۺ}UzcBgMD׃ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պۺ}Uzrĵ͵ߣڸBr΢ĹȻڣ΢^΢֗l_PГQ^̣ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պ@NB^̣lF@NСĹʹ䱣ڸBϱrۺ}UzܱsصB

}Uz߭hضǶ?

̎ڹBµľۺ}UzهڮbƷNӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պ҂ĴbƷf@_85CЩɸ_125CڷǹBµľۺ}UzЩ^̕rgĻضȣoUUӶSġ

(1)

ۺ}UzڄBֶܱLrgpģ

ڳس£ҎҎۺ}Uz늉ͣ1000СrʧPTCԡ ۺ}UzڄB̎ĕrgԽLԽпֵ}ԭӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պɴ˿ܲʼOҪÿNۺ}UzͣĕrgS¼Ͷͬʹ×lǺҪ]֮һ

ۺ}Uzܻ}

ۺ}Uz}BÕrgӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պصӰ푣ۺ}UzķNαNb̶hضȣăcmĕrg һfMSڎR}ԭǴۺ}Uzڎ׷R}ԭӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պͬĄҲкܴPϵԽ󣬻}rgԽLhضҲҪԭ֮һ

늉cn¾ۺ}Uz܄ٴΣ

ÿNۺ}UzһضĹ늉ضnӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պҎҎۺ}Uzڄ6000ܱFPTCЧͨӍOϵľۺ}UzҎ늉£لtʮ״ζ_ϰٴ΄N܅ԭйȡ ӲOӋԓJR@һcۺ}ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պUzÁMбoģڌ䲻ͣĄҕBĈϡ

(2)

ۺ}Uzϕж늉Vdop

ͬ·вeһv֪ƽBӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պ늉Ӌھۺ}Uz늉ֵR1maxMӋ㣻͉Բֵ ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պRmaxRmaxδṩr² Rminc R1maxƽֵIh Rۺ}Uz(R1max Rmax Rmin + R1max/2)t·оۺ}Uzϵ늉 Vdrop = Ih x R

Rmin, RmaxcR1maxą^e

Rminyintع˾ṩľۺ}UzҎе裬ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պ@Q˾ۺ}Uz͵ĄRmaxyintع˾ṩľۺ}UzҎеӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պR1maxۺ}Uzᑪԓ_裬ֵQ˾ۺ}Uz󱣳ۺ}Uzᣬyintع˾ṩֵڻRminСڻRmaxСڻR1max.

(3)

ۺ}UzĹԭʲ᣿

ۺ}Uzɾۺwʹ䌧늵̼ӽMɡӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պھۺ}Uzwϕͨ^^ͨ^ۺ}UzrbğIƽRʹÛӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պĶ̼ӌ_ۺ}Uz茢@ʹۺ}UzĮbᡢÛøMһʹߡض_125Cr׃@ӰƬ׾ۺϼ,ϼ߹ۿ۸Ӱ,պĶʹ@pС˕r^ۺ}UzСʹ䱣@ضȺ̎ڸBᣬۺ}UzտsԭЌ̼“YĶҎı@ˮƽ^̿ѭhΡ
 

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