|  | uqpxrpu| p . Rqu~ uu}p|rp ru{y {
p~y{r , {|{
 xr|u 
zr
 r|u }u~utwu us typs~y{y y ~ywu~yu xpp ru}u~y . E|y 
}u~p {|yur rp~ rxt
rtr |w~z , y up|yxpyy t
sy}y u~|syu{y}y {}|u{p}y ppp
? O~r~
 su~ uqpxrpu| p tp~~z {pusyy rpr pp~u ~p uu u|ru{ pry|~z u|u~ . B uqpxrpu|u . Y{p 
pr|u~y . Rpr }wu  u} q} }wu r|~ uyp|y} , ~p uu r{|u~yu u}~ q| r|~u~ r p~} uwy}u , upp y  qu~~}y rpus ysy~p|~s  . Xp 
~{yz ,  t| {}|u{~z pr}pyxpyy . A|u rus ~pspu 
 { ~u x~p tru }uw
~u uwy} ~ps
x{y 
ury }s{u 
{u~yu uutpy }~y , |y{} q|y} 
{r} y p rpu~y . Quu~yu t| rt~ pp}ur , r |{~
|y ruru {ppu rp{p~yyu{yrp~yu , p u~! Ny{ q rpy uqpxrpu| p xr|u y|xrp t|~yu|~u uqpxrp~yu rt~s ys~p|p ~p ~{u tp~~s yp . E|y  
zr , uu~y . Bu} {~p{r . B{p { rpu~y }p ~u wu|pu tprp rz xr . ^ q rpr~yrp~y sr tryspu|uz , {stp ~u ~p~uu qpqprp u}u~p sp~
|yrp~~u , spp~y
 us |rp y pr~yu|~  uytp}y , ~ppr|u~yu rpu~y ~p rt{p~p|u , ~py~p|~ p~tpr . B {pp|su , tuwpp psuyr~ utp {|
ppyy tpwu 
 ypu| , {pur , y ypu|~z puz ~u 
wu! Ru}p t{|u~y |u{y~
}u~ryxtu|y ~pqwu~ uyp|~z } y ~ywu~~ ~pwu~y y ttuwp~y {y rpu~y@https://prom-electric.ru/articles/8/?page=351@uqpxrpu| p tr|~ |~z , p{{
}
| . Puqpxrpu| p  y{} p}p
 . Bx}yu }p{u t| |pr~s 
{p q|{ pup t
y}z {~u~pyy yty qux u ~usyy y {}|u{py xu}~ptr ,  , pq|~s ~{tup uq
u }p{y}p|~p ~ps
x{p ~~ ruu~r
u} rz tryspu| rppu r ru}u~~} q
trp~yy 
ur|u~y {~| , {p| , 
ur
 y |}p . ^|u{tryw~z pr p{z ~ps
x{z , y ~pwu~y . Xp~z uqpxrpu| t| 
pr|u~y ru{~u 
pr|u~yu  
~{yuz ru{~s 
pr|u~y y} ~z |u{yu{yz ys~p| tuwp r t
{y . Xp~u uqpxrpu|y t| yx}uu~y }~y y  . Yy{u y}u~u~yu p~s us
|yrp~y {y , stp rut}z . Bu~~p 
~{y uu}u~~s 
pr|u~y . A|pstp u}
 u}
 ~u ~uu }~s
~{y~p|~u q
trp~yu t| sp~yxpyy pq y ypu|~}
 . P}y} tp~~s rytp ~ps
x{y . Psu~ utu|u~y t|y~ uty~yu|~ rtr {p
{y pyr~z ptyp , utpr|yu qz ru}p 
rryu|~ { uusur
 . Quwy} trywu~y . Kyuyy {pxp r } r uy . Pup~u rt~y{y ~{yu y|syu{yu yu} t
syu qru 
zrp tysp y{p~ x~pu~yz pqy|~y , ~uqty} yx|yrp y }  |
p y}~u pr}qy|y tryw
   . Rpqr
u , }up~yu{yz uu~~ ~y p{wu y}yxyrp ~usuq|u~yu quuyrp u~ tr|~p r {{u |wu~ ws
 }uwq|~s }~pwp y qux
u~p ~ptw~ q ~u p}p . Tpr|u~yu y 
tp|y uwu~  p}yxpy~~z p}u spp quuyrpu yp~yu . Bur , q {
y  tuzr
u yu}p ,  {}}
p t| q|uu |w~p y 
 
 |