K066A - ITU

K.66 ITU-T

(2004/12)

K :

ITU-T K.66

(2004/12) ITU-T K.66 i

ITU-T K.66

: • !"! #$ %& ' &( )*+

• ,+ -.ITU-T K.21# ) / &(

• %& ' / 0 1 &( )*+ 2) )" 3 #

ITU-T K.21 4 3 5 67# / 68 2) IEC 60950-1

• 9 ; 2#< =7 5> ?@ '7 6/AB =7 CD E)SPD(

• &/ H-"B IJB K + '7 %& IJB L/- M56 N'7 %N O/ P/Q I(:

1( '7 %& 0R 1J7S 2( TU+ V WT 1J7S # XY 3( 4C # ) &( Y 3Z[*\

• ; ] &( )*+

• -+ 68 ^7( ,+ IEC 62305-36Q" 27*H _ 6/AB .

C5 a b6T5 (2008-2005) !"! c6 ^d6 14 e) 2004 P/Q K.66 f7<. =<9 )5gA.8.

ITU-T K.66 (2004/12) ii

. (ITU-T) !" #$ %$ . &'() *% +*, -/012 34() 52 3"6 7 3"6 8+ 9: ;<6 %$

=2 2 >5: ?14).

2 2!@ (WTSA) 8+ @ A8+ B CD E FG% %78 F)+B 3 1 F!H E &'() *% +I B 2).

+ +1 JG% K1LM NO *% PQ$ >5: O% 1 2 2!@ 9: + .

F 2 R8B >5: S T02 2 - UV 9!G F E %52 L%%7W X Y2) =8 Z%5 ![7(ISO) 71AW 7\5 (IEC).

!5 ]6"+_ " *% PQ$ ` a12 34( >5: B +, >5: K%8 bL% +%) ;.

c+V *% PQ` . b_ ]WZd Y2) e &B Tf)Nh ij kj 34( 5) l' a` .( n20]WZd PQ$ F!o p 0 7: N*Z *% PQ` pb_ . 32O ]60"CD " 32O 3h q1VB b5 r*"=4j70 "

=b, *% PQ` p B r PQ$ ;!28 k20 -72 j5 9: Tj25 O7 A4*.

60 $Q/7 B *% PQ$ ij B s, Pjt =:16001W/ W5 u%Z 9 iZ ;!28 ]b5 . cB Q0 1Vv a1w B Ke:B 9 %e: ` Cw K%8 Aj ut B AZ* B 01W/ W5 u%x 52 9"1 9 y%

*% :, 5!: z5!( .

9W0 -*% PQ$ >5: O% 7: PQ$ Q/7 ` j 9W| 1V K1) A! 01WO W5 N+V, >5 *% . >5: w ) *% PQ$ Q/7 9: %<6 >*%0 -~Zd =$ %W %52 PQ$ B s, N1[t - F

CW 1V Kn) * 2 : (TSB).

© ITU 2005

%/ u% F . 9 =V ) , 58 c') +%(7 PQ$ 9 KbL cB 678 S%D .

(2004/12) ITU-T K.66 iii

1 1Hd Lh .......................................................................................... 1

2 ?<7B ............................................................................................... 1 3 iA .............................................................................................. 3

4 7"j............................................................................................ 3

5 ]B ............................................................................................. 5

5.1 kHB l ................................................................................. 5

5.2 ?m"B ..................................................................................... 5

5.3 H( Imn( .............................................................................. 5

5.4 ..................................................................................... 5

6 dY\ 7E5 ......................................................................................... 6

6.1 7 )".............................................................................. 6

6.2 7d> 756 ................................................................................ 7

6.3 7d> 5; ............................................................................. 8

7 %& '7 4( 1Hd o5 .............................................................. 8

8 ; 6 ..................................................................................... 8

8.1 pB '7 ..................................................................... 8

8.2 f7# ?q 2#< ) rB SPD ............................................... 12

8.3 !"! sdY ) \ 2#<SPD ..................................................... 12

8.4 f6t \ 2#<SPDLY5 d6t #H7 )7B ........................................... 13

9 2#< =7SPD) u( ................................................................... 14

9.1 2#< =7 1J7SSPD ) u(f7# ?q vt i/[B wAH .................. 14

9.2 P/Q /x2W"6 '7 y4C 39 O3 =7 1J7S ................................. 14

9.3 q#< =7 ?USPD !"! 'Y ; ........................................... 19

9.4 4 IJ ............................................................................. 19

10 3/]B ; 25-)CPU( ......................................................................... 20

10.1 25- LACCPU 2)73B ............................................................... 20

10.2 5- )5Q LACCPU ........................................................... 21

11 3 ............................................................................................... 21

12 2WH z(B ...................................................................................... 22

1R/BA 256 ?q vt ' wAH =7 1J7S ..................................................... 23

1.A ' P/Q 256 ?q vt\ HC =7 1J7STN-S ................................. 23

A.2 ' P/Q 256 ?q vt\ HC =7 1J7STN-C-S ............................... 26

A.3 vt\ HC =7 1J7S ' P/Q 256 ?qTN-C ................................. 31

A.4 ' P/Q 256 ?q vt\ HC =7 1J7STT .................................... 34

A.5 ' P/Q 256 ?q vt\ HC =7 1J7SIT ..................................... 40

ITU-T K.66 (2004/12) iv

1R/BB '7 %& 4(B L/-................................................................. 45

B.1 '7 %& 0R 1J7S............................................................. 45

B.2 T 1J7S 2#<| <Y TU+ V W.................................................. 45

B.3 Z[*\ 4C # ) &( Y 3................................. 45

II – '7 %& Y ......................................................................... 45

III 256 ?q s i/[B wAH 33j W5 P/Q /x............................................. 49

II. 1 0d Z"~TN-C TN-C-S ......................................................... 49

II.2 Z"~ 0d TT IT .................................................................. 49

IIII – 7T #Q E p .......................................... 50

IIV – Z[*\ 4 7 ) # )" 1/A Y 3 ...................... 52

(2004/12) ITU-T K.66 v

w7- 5J 7 ; =/d/ u Z[*\ 4C P/Q # . 1T7B ' ; WT / =<; 2#< =7 NkHB m]9 t5ABSPDkHB IY5 !"! 256 4 P/Q . =7 + +

rB IdA o7 1T7B /A + 7dY I/6 t&* 2#<\ f85Q7 iA .1T7B 7x 1T79 B #/ ; C w 1J7d 7T .

wf) l N7d[/ U7Q 1T7B Imn( eA ! T NkHB IY5 V q#< =7 kHB lB 7U Z[*\ .#.

H( id Ix N H IY) # T I !"4 256A t7+ #$ LAC 5 +ISDNS73B 25J 7 ; I< wWH w =/d N#T )B 2#< #HC- .

2)q !- 0 s7T 7 : 7u 6Q"/ Nf7# sdY N5> /Y5 !"! 4H E7A256 I6 <> H( LdQ =H N!"! 4H rB 7 . '7/ 55 I(T

Nq4 ; 16 # kHB IY) pB O/A 4C U 3t bu w #T7d #. 68 73[7] IEC 60950-1 ?B NH( J#t 7 2)q V q#< !"! H* Imn( =7

q$ 5J 71,5 kV !- H/ DE .AB /C V q#< =7 O l ?" 6Q"/ U7AB 1SB . u 7 2) 5- ?U 1,5 kV X7; L5AB ^3! AuB !; H/

6Q")di/dt( %& 6 O 6 N27*H 7 \ + =H N25< '. I( 5> )mB 0 ]B ^q i P/Q . 7 2)q ; Q <HT

w5/6 ?6 b/ T7d # I< /dH( O/n( ] U . C 7 ,+ 7v ' l/ / wJ< H N!"!# . w5 IH6B I( / ? ?u

# s . 56 )5 p OJ7 IA O dn7# H L6AB \ / c N; <- .u dn7# H 78 + + dn7# 7v ' P/Q i

# =7 p)B =7 P/Q 7Y #< iu N#< #Qu L- . O 6 A3 ;T 5> )m/ 3t p %& = u ,+ )EBB ( 68 H/d OH/IEC 60364-1 [4]

wA . H* In( 27dC dt Q X7 5< %& ' 16R /dB CB %A 9l N7Y o7S P/Q ]B ^q #T N!"!/w4x NkHB C . 55 U

] ?6 N4 V f< HB J7# H7kHB l 1Q P/Q #. OJ7 68 )"6 N255a HB 5< %& ' 16 2)Q I# . 56T J6 HB

#T J7# H7 55 5 i H =A" . 1R/B 7T !; IxBB IJC R/ /5 )# I(.(

1 (2004/12) ITU-T K.66

ITU-T K.66

1 O/ 56:

V 2#< =7 I< C 68 - ? 1 " O[6] IEC 60364-5-54 1/A T S c6 -

rB H7 55

H7 55 0 ?C l 255a H7 55 AC I< QU OJ6

7# f4B I< 'd[ P/Q ?( 5"6 H7 P/Q I( OnH 'd N4 dnH7 55 ¡[( HY %& '.

%& '7 4( 6/AB S v I¢ I )"6B c.

Z"~ N!"! #$ ) / 7vt[17] ITU-T K.21 . Odn7# £AHt! C 68 #dn[1] CISPR 22S v N . ?<7 N5J 7 u ,+ <; 1/A T

:[15] ITU-T K.11 [20] K.39 [21] K.46 [22] 47 68 [14] IEC 62305-2 . u vt Q" 68 ¤&( ?<7T 1[14] IEC 62305-2 S v .

z(B #T 9 N I< " . ¥7 ,+ O7 I N+ b"CB I T "0vB 0/n(B p5 P/Q ; =C.

-Bw4x Q73 dg NrB OU\ ^3! U7AB NTU+ V W5 / 5u N 5/§ HVII VIII#< .

2 ^d6 Q 5 W pITU-Tw- I( -\ %A =<9 N

¡ #+ -. .; L ! 2B AHd bt 7(t © O3T . ?@ 9 ª £5- 1Hd ,+ OA P/Q O/A ?(t « T N7v 2)Q. AUY 7Y\ ?<7B

J6 2) 7Y\ ?<7Bt) . ^d6 Q 5" -4" Ju 7(t vt p7¬ITU-T.

3 68 P/Q O3 ! 68 ,+ IY) -. _T . [1] 68CISPR 22 AHd b 3.0 (1997) : – –

. [2] (BIEC 60050 : !"# $ 4"3 N604 826. [3] 68IEC 61024:" %& ' () *." [4] 68IEC 60364-1 (08-2001) : () + "# ,#-– !,. 1 :/ 0112 3) 4

56 0.

2 ITU-T K.66 (2004/12)

[5] 68(08-2001) IEC 60364-4-44: "# ,#- + ()– !,. 4 – 7$ 44 : 89 ;< =–=># "?@A "?@ ' ;< . C=444 : ' ;<

=># (EMI)D + () ,#. [6] 68(06-2002) IEC 60364-5-54: () + "# ,#-– !,. 5 – 7$ 54 : 6

#>E "# –;F #. = G ;< G H6I . [7] 68(10-2001) IEC 60950-1: . – =– !,. 1 : )?. [8] 68(01-2002) IEC 61643-1: " JK )L J G M, ' ;< ,#D

H$N– !,. 1 :6)A % !2 )?. [9] 68(02-2002) IEC 61643-12: " %& ' O H$N– !,. 12 : %& O

H$N " O? JK ;PQI" G–%)? 6)A 3) . [10] 68(09-2000) IEC 61643-21: H$N " %& O– !,. 21 : G %& O

E AA )E"– !2 )? 6)A %. [11] 68 IEC 61643-22)11-2004(: H$N " %& O– !,. 22 : G %& O

E AA )E"–%)? 6)A 3) . [12] 68IEC 61663-2 AHdB 1.0 (03-2001): %& ' ;<–AA R? – !,. 2 : R?4

Q G SN= T. [13] 68IEC/TR62102 AHd 2 : !"# =– J 7; N ; ) U?= 5

AA )L.

[14] 68IEC 62305-2) ^7( :( AHd1 : %& ' ;<– !,.2:N M6V .

[15] ITU-T K.11 (1993): "6 R9 ?$ R9 ' ;< 3)".

[16] (2000) ITU-T K.12: "AA XE ;< K> %& Q $G".

[17] (2000) ITU-T K.21:" YZ + )Y AA ,#D R9 , [YE '6."

[18] (1996) ITU-T K.27 :" 7 H6I #. \= EAA ])".

[19] (1993) ITU-T K.31 :" () 7 AA ,#- H6I #. \= E[YE".

[20] (1996) ITU-T K.39: "AA JO + & #))= T 6@2 ^ ".

[21] (2003) ITU-T K.46: " T 6; ' Q _ G 7;= T AA R? *& #))=".

[22] (2000) ITU-T K.47: "* 7;= T AA R? GML) %& ' Q ".

[23] (2004) ITU-T K.65 :";< G9 + 6 R9 , )?".

[24] 68IEC 62305-3) ^7( :( AHd1 : %& ' ;<– !,. 3 : `& ?4 () + 6@2M<.

(2004/12) ITU-T K.66 3

[25] 68IEC 61643-311 (10-2001): !,. H$N " %& ' O Q 311 : $G K> a$ b"QZ(GDT).

[26] 68IEC 62305-4) ^7(( AHd 1: %& ' ;<– !,. 4 : + Q c "# ;PQ2().

3 wY6d/ 68 bAU 1HC %& 6/AB 37A IA N[2] IEC 60050 .

L6 liA QUB %& '7 4( 6/AB [18] ITU-T K.27. 3.1 : IAm]B < -+ I< O3 dC ) )"6B 7( 3 )

!"! # .%& 5JQ dC 7( P/Q 7( 3 I( 5u. 3.2 : H* Imn(B H* 0 s6t O)>.( 3.3 !": "B NH* )5- )B d6 O I< T7S #$ I O6/ I<

7Y H* H( 0 I)?<7B :[13] IECTR62102.( 3.4 # :#$H( )5- I( In(B #/ . 3.5 $%& '&!: 1T7B LY) d6t /u '7 y4C I Im# o7d B ,+ kH . I

OJ %& o7d9 '7 o7d)MET, main earth terminal ( p %& = 6 (EBB, equipotential bonding bar).

3.6

3.6.1 () *+ :/ dC 27®T J7# 5" #V #$ L\ i" O: 1( w NOCC\ LA LAC 2( 7 7A /u f<\ l/ L4Y NkHB R/ m]B %& Iu #/ /C WT

; 7T ¯ + NOCC\ LA rdAt L- 27dY. 3.6.2 ,- *+ :#$ x i" LA P/Q '6T 25A W J7# 5" #V

Ix 4 &( TU+ S- #; [E I NOCC\*./ (01 201 (01 w7vt N )Q! 5At! =7 s7* L4Y ; P/Q %& ; P/Q.

3.7 &3 4 : H* f H Nx8 o7S ,+ Q 5Y I ! N7 7 H* O!".

4 AE 5Q #$)auxiliary equipment( CB 2) T)circuit breaker(

CBN 7( ' H*)common bonding network( CDN 7u H*/ 7u lT)coupling/decupling network( CPU 3/]B ; 25-)combination protection unit( CUE y7( 1T7 5)combined utilities enclosure(

4 ITU-T K.66 (2004/12)

E I%& J7# 55/ )mains earth conductor( EBB = u' p )equipotential bonding bar( ELB %& r7 T) earth leakage breaker(

EMC Odn7# 4)electromagnetic compatibility( EPR \ ^3)earth potential rise(

FE O3 m]B)functional earth( GDT °) 6Q pq) gas discharge tube( IEC 5 67# /)international electrotechnical commission(

IT 256 ?q vt ')type of power distribution system( ITE /AB < #$)information technology equipment(

L f7# 'Y I)d 'Y) (mains line (phase) conductor( LPS 1Q" q#<)lightning protection system(

MCCB H6 H/Q 2) T)moulded case circuit breaker( MET OJ %& o7d)main earth terminal(

N f7# 55± L)A I)mains neutral conductor( NBP H( )5- d6t)network boundary point(

NT H( J#t)network termination( NTBA OCC\ 3B NH( J#t)network termination, basic access(

NTP H( f#t d6t)network termination point( NTU 25-t H( f#)network terminating unit(

P ² q#<)protector( PC O"[* rC-)personal computer( PE m] OJu )protective earth(

PEN OJu %& L)A I)protective earth neutral( POEP LY5 d6t V)point of entry protection( RCCB i/[B 2) T)residual current circuit breaker(

RCD i³/[B q#<)residual current device( S 7 I5H)switching centre(

SPD q#<; D E)surge protective device( TCP T7S I d6t)terminal connection point(

TN-C ' 256 ?q v)type of power distribution system( TN-C-S ' 256 ?q v)type of power distribution system(

TN-S ' 256 ?q v)type of power distribution system( TNV !"! H* 7)telecommunication network voltage(

TT ' 256 ?q v)type of power distribution system(

(2004/12) ITU-T K.66 5

TTE !"4 7S #$)telecommunication terminal equipment(

5 L5a mH ; W5 i/j Q ]B ?q Q51µ :

(5561/ K.666 8329 ;

3<= > ; 5

1Q" ² q#< =7)LPS( • kHB l

#T 9 NAT ' %& v =7 = u' p )EBB(

• kHB l

t) ) 3" #$ ? 1T AB /" p)TB CC\

K.21!"! #$ &( .(

• ?m"B

3" #$ LAC )"/dB

1T AB/" p • #H( :H( In(

• #$ :/vB

2#< =7; ED SPD '4H/ t5AB H<; t5AB =t\.

• 2#<SPD N1T7B > 'H<; t5AB =t\ 4H/ t5AB :Imn(B/1T7B l

• 2#<SPD N > 'H<; t5AB =t\ Y H* 4H/ t5AB :.

5.1

2&(B 4C Ih Q ]B kHB l IR . = u ' o7d WT Q l L] EBB 3 OJ7 %& o7d ,+)MET (-+ I< t5AB =t\ H<; 1T7B u 2#<\ %& .

5.2

39 O3 #$ WT ] A"B IRITU-T K.21 [17].

5.3

t& 5~ 5 Q ]B H( In( IR .wCC ¶A / t 0- V =7 In(Bª/HwC H6 W 7 3 L- 1,5 kV .kHB l 7T p %& o7d9 \ ; q#< '7.

2#< =7 ? SPDf) 4C 3B . I( H 3B fT Q ]B3.81/K.66.

5.4

#$ V / · 76 ] IR . =7 7u iu 2#<SPDO/ P/Q : • 1T7B ¸)w4x 3(B7; Hu7 (

• # ) C

• 5> f) P/Q # 25u)B HA H7B #x Q LH< NLw4(

6 ITU-T K.66 (2004/12)

• # /" 3/

• #T 9 AB ?uB dn7# H:

\ ^3 f7# -) EPR(7B rB

1Q" W8&)\ ^3 ; EPR(

• 7 !-.

6 !

6.1 ! "

f7# sdY !"! sdY Q 0@ s7T 7 2)q '6T #/ ! ; WT 27U) =HD1Q" #x sd> #/6 (w #/ I N H Q 0@ s7T 7 2)q ) =H

H O6/27*H 6Q" 7U(H N 0/( 61/K.66 62/K.66.

? 661/K.66 – @%0 AB& C %DE F. -G #&4 HI #&4 ". %&/%

K.66_F6-1

(2004/12) ITU-T K.66 7

K.66_F6-2

(S1)(S2)

(S3) (S4)(d)(f)

(g)

(h)(i)(1, 4, 5)(2, 3)

direct lightning strike to the structurenear to the structuredirect lightning strike to the telecom or power line

near to the telecom or power line EBB (equipotential bonding bar)Information technology/telecommunication portmains port or line

IT/telecommunication line or network

Earth electrodeResistiveInduction

(S1)

(f) (g)ITE

(d)

(2)

(d)

(1) (5)

(i)(g)

(h)

(S4) (S2)(3) (S3)

(1) (2)(3) (4)

(2)

? 62/K.66 – @&JK L 6.2 #$ %&'(

7 dn7# H L- t5H . 7 !- 756 PQ) 6 N1Q" % Tx%& N2&(B AHS .( 68 ,+ ?<7[14] IEC 62305-2 67S ,+ )*7C4 7567d> .

O/ KB 7 L- 55 PQ7: • > 56T =uQ H( In( P/Q J P/Q 5)J )5Q N5> 7E 5Q 25(

• 5> ¸)w4x NW 7- Hu7B 3(/ ( /" i 56) /" i ^3 !- 25a # /" i 5At t6 N=¬ g W ##V.(

KB 7d> u 55 AB S ] .w* )5 ¯ _T f< 9 5*7 NIH6 68[14] IEC 62305-2.

KB 7d> C 3 7 !- bt + V W5 7v J5Q =< N. 56 1Q" q#< ,+ <; )LPS( 68 f< fU P/Q[14] IEC 62305-2.

2#< =7 Q5 o7v &( )*+ )7SPD #/ # O N [21] ITU-T K.46 68 [14] IEC 62305-2.

n( d¢ V / · 76 0 2) )*. fU P/Q N1Q" H( I[21] ITU-T K.46

[22] K.47 68 [12] IEC 61663-2. P/Q 27*H 6Q + û pu L- 5< 0- !+ 2)Q / 4T kHB IY) !"! #$ O/A V

1T7 P/Q J kH =7u kHB 1T7 .

(S1) (S2) (S3) ! " (S4) ! "

(d) # $%&' ()* )EBB( (f) %-01 2%% '* 34 / (g) 56'- 34 (h) ' (i) 78 9*' )1 :4 :5( ; )2 :3(<=

8 ITU-T K.66 (2004/12)

6.3 #$ ) &*

W5 7x 5- Z[*\ Q 5a . f) z(B # Q 7U\ f) /: • q#< =7LPS7U| HHB 27*HB 6Q" 7U f6!

• 2#< =7SPDB =t\ ' t5A;=<t5AB AT %& ' v LAC 4H/

• &B LA )" t5 #"6 ! #$ LAC

2[B ; 2#< =7 P/Q '6T iu ! ; W5 AT 763 L4Y HC) IxD SPD(w I N P/Q '7 kH IY) pB .

H( In( 0 u5 ]B ?q N qA+ ^H 66 o5 ) 2763 ?<5.(

7

%& '7 4( 1Hd O7O/ 16 ,+ : 1( H( !"! H* 0 Nl ! I" 5u NOJ7# 7T I/6 17S Q 4 A

U]B 2( 7U\ i3 W 1Q" #HH N!"! 4H NJ7# sd> I" E

Wt5AB 1T7B 3( I/6 « N!"! 4H #$ J7# sd> 0 OU7Q ± Q @ ud ª73 I#

7 7d> 4( 2#<\ dC N\ ,+ #T o7" p WTSPDN =<- 17S Q \ ,+ /Y5

4H4B . 68 6 ? ! /[7] IEC 60950 Xq\ 7B IB 0 "- B N 7T ?

7Y\ t5AB f<\ q$ N\ IY)1,5 kV 6Q" X7; L5AB ^3! AuB !; H/ )di/dt .(\ mH L*III1 ,+ III4/K.66'7 4 eQ ?6 )73 7 3¹ I 78& 7 .

!"! 4 0 7 ? ! )(B o5 16RC 2dAB '7 %& 3 + OJ7 %& o7d)MET ( q$ 1,5 kVH/ N 6Q" X7; L5AB ^3! AuB !; )di/dt.(

8

8.1 + ,-. /

N!"! sd[ N/B 1T7B \ N&(B <> ud 5" # Z[*\ 7A HB IY)*7 NJ y4C Nf7# sdYfH I 7 t5AB =t\ N%& 4 N<B 5 . i3

/C7B ud 7Y I 1T7B I ¶H OJ7 %& o7d9 )MET ( H( ( ' H( 7( ' )CBN(dC NuAB 3[ ' 4 . 1®6R '7 4 LS f6HC 3[B uAB

wW"u) > 1,5 m .( 27*H 6Q 7U û L- e x- ¸\ ª uAB 3[ ' 4 LAC + +kH/ 27*H § '> P/Q kHB I P/Q.

1 – 1,5 m ! " #$% &'% () *+" ,-'" . / :kV 1 = ∆U012 34 . D s7* I q¬1,5 mw4/u 6Q" 27*H 7 . L- x- : 3 7vt

4 L5a '78 1/K.66.

(2004/12) ITU-T K.66 9

81/K.66 –

º LS e/'7 IB 6 27*HB 7 1,5 m

xRB 10 m OJ7# ;/OJ7# (< 50 V a.c. @ 2 times 24 A a.c.) Ω 1

pB '7 P/Q A ®7 OJ7 %& o7d9 t5AB 1T7B ?a )MET (wA Q 7T L"; 7Y\ t5AB 1T7B J7# 55 H* 0 . !- N¸ | %& H* 6 + +

C vt| H NH P/Q 27*HB 7 IC7B vQ %3 I< NO<Y IH 7x ? KdED 78&B W IH .

wYTOdn7# IY5 %3Y '7 4 LS I/6 ) EMI( ?@ 25- d6t kHB ,+ IY5 & P NB f7# 4 Ix Nt5AB 1T7B NOQa 23/ OJ NfB =t Nqn =t N!"! 4H Nr

%& I . =67B d6 ?U r7u A NOJ %& o7d WT kHB l t5AB 1T7B # IY5 . Nv-4 / 5u t ,+ Ht! PQ7 W f7# 4H 0 Odn7# 7u! 7E5

68 &( 25QB 5 !"! 4H g[5] IEC 60364-4-44. wWx t !+3/j s6t kHB t5AB 1T7B IY5 .kHB l P/Q A N; Ix ' = u 7³T

p)EBB ( ' o7d )BT( I LY) d6t ?U r7u H" N 5- 1T7B t5AB . = u I IEBB o7d I BT H 6 '7 N%& H( EBBw4x O6/- I #A@ N

I( 2.95/ K.66)w I( H N '7 =/d O6/- %& )7+ OH/2.94/K.66 N H 6 '7 P t !+EBB I9 LS 7"u =H O6/- 4'7 .(

2 – 67 89; < =4 >? @4A)MET ( DEF G?EBB0 0H+ 0IJ KL $% 3M? @ @4A N 89 4'O 3 G? P+ Q DP? 3R S? +T . DP? +T 2 U UV =? =4) () #'P1 W.G

679 89; < RX P+" Q")MET.( wY7 OnH NkHB ED 7 I/6 wd kHB ,+ /Y5 4H =<- ?@ 'w7*H o7dB

MET = 6 EBB . 2#<\ IA SPD5" =H N27 5Q 3/n LA/ . 2W"u ' y4C =7 z(B %A A 5u .> )5A Y\ ; O3T:

• Hd = u WT kHB lEBB 68 o N[12] IEC 61663-2

• 2#< LAC B '7 y4C 7"u =7SPD 3/]B ; 25- NTU+ )CPU (w4x) 7vt 610# #d ®3 i .( 2#<\ 1 =¬SPDWvt ? TU. H7B » 1C ?u

7

3 Y Z[\ ]. 3T" 9 @. ^M 32 9 _`T 2 W`. &'a =? b SPD @ _`TG M ,cL _`T &'% F2 =4 d[e 9E dP)G d[e d. fg D' =? hP;-0 9i , =j

0JG k"L` dt

diL∗l=m nE ZGe 1 .0M 3[ $Gd[e 9 $% opF . =? U" 6L'G k" O

9Gq KH9r ^M ,. EG D' =? hP;- @ 32 9 _`T ]. . g 6L'J ,d[Mj n/ 9S . j $%SPD G _`T 9.

• A 7 P/Q A LQ <- )" µQ #$ LAC .

1Q" q#< =7 27*H 1Q 7U kHB ; / 5u)LPS ( o7dB dMET . OnHa =7 w6HS Ou q# 68 #< [3] IEC 61024 . C T H7B J#/ Y Q f4+ /

kHB dC.

10 ITU-T K.66 (2004/12)

H( In( 27dC Q X7 / 5< + #/ 7U #T I" o7 y) 2#< ?wH7 H®7 7 2)q ;wRR (O/ l P/Q /x\ :

• kH IY) t5A W U P/Q Nm]B I W N#$ =7 - : 1Q" 27*H 7U o7 w3/j # ?U \ ^3 o7dB ?U Q MET Q 73 73T N

ª73# . I( U NO6/- m] =7 O L"- ?B /C9.24 ¼( NkHB IY) .

• o7dB / W 5< U p kH IY) #$ =7 -MET : 27*H 7U o7 ?U \ ^3 1Q"w3/j # o7dB ?U Q MET 73T N

# ª73 Q 73 . o7dB t5AB f<\ 0 s =7 O L"- ?B /CMET.

O3 m]B IA) FE(!"! # dC ) )"6B 7( 3 )< -+ I< . 5u7( 3 I( 7( P/Q %& 5JQ dC .,+ Ht! PQ7 7( 3 " bt + N

w6HSN4 69 #/Q U73B 5Q6/ w6T #-+ O3 m]/ y7( I dC )FE ( OJu m]B)PE.(

(2004/12) ITU-T K.66 11

6 I( 58.11/ K.66w!x kH IY) %& ' /( P/Q .

8.11/K.66 !"# $"% &

K.66_F8.1-1

1 <

PdS3

PE

FE

FEM 1 G? M =? @4A

PE

/) stG>9S

FE(

(

FEuvP W`. NO" 4'- ()

w *+ x' @ /9j)K.27(

S9 wJ Pd67 yG"

89; 3

89; < 679

P+ wJ ()S?

89; 4'- ()

)'8(89; <

DM>9S

11 *' ()

stG Z[M(

PE

(

( !"# $ %&' ()* .

+, - /0) 23 45 ITU-T K.11.( 2 % #.

78 9)[4]

< 1

< 1

PdS2

: 9)[4]

PdS2

: 9)[4]

(

(

(

(

stG Z[M

(

12 ITU-T K.66 (2004/12)

8.2 SPD

H rB sdY 55± OnH 68 TB s\ 5- P/Q k[4] IEC 60364-1 . + ' P/Q kH IY) rB f7# sdY 55±TN-S 68 oB [6] IEC 60364-5-54 Im#

L"! # Odn7# 4 . ! 256 ?q /( O 6 L)A I p kHB IY) OJu %&)PEN.(

w< 256 kH 5 + ' P/Q ?q vt 17S Q IT TT OJu m]B N)PE ( IY)w4 kHB o7dB MET = 6 EBBl L)A I ! N.

U–N z) W`. nZ 4'- |PIT G? TTH4 3J ~X ,d[q x'" _$ )3S @ v` i4 >? ( G? W`. QM) f'i _z =J h*+ X ,d[qTN-S.

' P/Q u LAC o7AB TN-C IY) J7# 55 5/H %A 7( HB . w5 OQ5 55 IxB %& '7 4(C5 . AC q4 W5 7 P/Q

0d P/Q 55 Z"~TN-C TN-C-S H6 ¥Jt Q )+ 25Q eY 56T NC5 5u L ! AC! I TB i3[ W5 II.

2#<\ bt +SPDwWx O N 2#<\ SPD L\ i" HY 2)"6B) 068 [8] IEC 61643-1 [9] IEC 61643-12) (\ u 2#<( 73 Nf7# 4 P/Q H7 bt + N

#AU kHB ,+ sd> LY) ?U r7u . 2#<\ OnHSPD 49 1R/B ) 1/AB I( H f7#A . 2#<\ ?U 73B SPD y4C -

I 9 N 7"u f7# 49 I1Hdt x- NL)A . I/ y4C LAC P 7"u0,57 .

8.3 ! SPD 2#< bH³ +SPDwWx N q 1Q J) )GDT( N) u 2#< ( N!"! sdY P/Q

sd> LY) ?U r7u =®7½/TkHB ,+ .wH7u \ u 2#< bAU +w d6t o7dB ,+ µ\ u q#< %& I LS P/Q ¾3; Nf7# sdY LY)MET Iu

1,57 . 7T ¡/6 # W"6 %& I p uAB 3¹ + + sdY 0 7 ^3256 I6t H( ? OJu IB !"!.

U –0H =`' 8+ =4 1 11 Gj F ,d[Mj 89; < =? h <+" @ 89; *G4 1) 3v . &G- n 7 c 89; #$%G0 D' =? ;- @ 3 1 d[e M ) G? x'"

x'" 3S* 11 d[ =`+ @$ - ". wt- 2#< =®7 SPD Ix NTU+CPUwY N!"4 T7d # ?U N 5R/

7u! #HHkHB IY) .w4 TU. u y7(B o7dB OnHT # r7u ; I9Og .w =¬ 2#<\ SPD H7B »Wvt ? 6 TU. 7 1C ?u . 7vt

K.11/5.4.1 Nt8 u LAC &( 610 .

(2004/12) ITU-T K.66 13

SPD/N v/ Z[\ SPD[. Gr" ` G? 4'O 3LO [ +

SPD/S v/ Z[\ SPDd[e n [ + =? @4A SPD/S/N v/ Z[\ SPD n [ + =? @4A [. Gr" ` G? 4'O 3LO d[e

8.31/K.66 – '()* +,-. !#01 SPD

H I(8.31/ K.66 LY5 d6t 5Q H7B \ ; 2#<)POEP .( H( In( 5 OnH7S[B 756 ,+ V q#< =7 7u .v-4B 5$ LY5 d6t V ?U )POEP ( W

H( )5; d6 ?U)NBP (O/g vB 76 p . d6 ?U NBP N5/H = Nw5- ?UB 7x : H( f¤+ 25-)NTU( OJ7 ^qB N)MDF (" 3 L ! . HB

4 HQ! NkHB XY \ ; 2#< =7 2)Q , p H( In( N2Wn" 3 . OJ ^q #H7 <7 T N2WH HB )MDF (kHB IY).

8.4 "# ! SPD$ %& '"# (

/A3 ; C 1)Ueff ( 2#<\ 7T SPD)" ? )Ui( Û # i" p w6T l N; n"/ :

Ui > Ueff q#a 5QSPDw4 ; 7 sH o Nt7. J7# vB Ox)∆U ( 4

; C ,+ IUp q#a i" SPD .O/ /A3 ; C I- N/Q f : Ueff = Ui + ∆U q#< - NSPD'6 '

Ueff = max(Up or ∆U) q#< - SPDLm5HB ' .

K.66_F8.3-1

S SPD/N SPD/NSPD/N E TTE

SPD/S/N TTE

ITE

E

ITESPD/S

SPD/S

SPD/S

SPD/S

: ;&5< =>SPD %" +?@

A3ITU-T K.46 K.47 BC D 2EF !G 2H#

POEP

SPD/S/NNBP

SPD/S/N

: ;&5< =>SPD +?@I

%3 ITU-T K.46 K.47 K.39 < 2?JIEC 62305-2 2H# BC D

K 2EF : ;&5< =>SPD %" +?@

23 ITU-T K.39 2?J <

IEC 62305-2 2H# BC D -

14 ITU-T K.66 (2004/12)

8.4.1 #- '2 3456-7

68 7T[26] IEC 62305-4 3 7T NHB IY) 1Q" V H* =7 " &( /A f7# sdY P/Q ; W5 .wYTwdY 68 I( NR/ P/x AT 16R w#< 0 A/

O"/vt\ i/j O/n(; W5 O" J7# . 2#<& 6/AB 1Hd s7* 3B )7SPD 068 NJ7# sd[/ ""[B [8] IEC 61643-1

[9] IEC 61643-12. 8.4.2 898 :;

1Q"/ qn J5 =7 OnH)GDT ( TB[16] ITU-T K.12 2#< / 5Q

SPD 68 TB ud A[25] IEC 61643-311 ; I< NkHB ,+ sd> LY) ?U N27*HB 1Q" 7U.

w¢ !"! IH +w6T N27*HB 7 f< B [22] ITU-T K.47T N q#< p _GDT 3 [16] ITU-T K.12wT / /5A T 73 7n . !"! IH +

q#< Y / 56T N27*HB 1Q" 7U O¢ WGDTw45A P/Q w)C N/ ,+ [16] K.12 68 ,+ [25] IEC 61643-311.

9 SPD) (

9.1 ) *+,SPD )' .(01$ 2 '34# 567 1R/B )7A 2#< =7 1J7S i SPDwAH N ) i c3t Nf7# ?q vt i/[B

1R/BV 68/ [7] IEC 60950.

9.2 869 '6:;<" = >?@ ABC DA ) *+, 2#< =7 1J7d )5Q ySPD) \ R/ ( H N2W"6 '7 4 39 O3

I( I 1/K.66 .l P/Q /x ¿ t) 56t .25Q U P/Q pd L\ LxB 5- ?U 1T7 LAC OJ %& o7d )MET .( 6 H Ny7( 1T7 5 LAC P/Q pd x LxB

9.2.2 . 7( ' H* x9 /B bÀ. S4 T IA x LxB)CBN( 6 H N9.2.3 .pd ?7 LxB 6 H N0T) O6/- I LAC P/Q 9.2.4 . I LAC P/Q pd c> LxB

6 H N0T) W O6/-9.2.5 . 2W"u ' 49 '7 H/d 16R J4 67S )¬+ A +C J5Q / 56T Nl L)A p ' 16 6 H N3/]B R/ 5- LA10.

(2004/12) ITU-T K.66 15

9.2.1 <1#= - >; ?5@2 AB7 3#C)MET(

o7dB 76 P/Q 1T7B ?@ 5< 67d O 6MET . 2#<\ t5AB 1T7B ?@ I p7¬SPD o7dB Nb x- NMET N4 dC0H N2W"u ' I( 9.21/K.66.

9.21/ K.66 <1#= - >; ?5@2 AB7 3#C )MET(

K.66_F9.2-1

) (

!"# $% &'*+ , -.

/01 2*34 5 67

8 +9

:;9< =>LPS

$% ?8 ! @# , -. ?"#

A'*B1 7B.

MET =>1 D7ELPS F ;B@ G

B%8 H7I ,'

5 J* +91 =>1LPS

–=>1 K69 L 5M L HN8 G META'*B1 7B @# , .

16 ITU-T K.66 (2004/12)

9.2.2 F- AB G6

y7( 1T7 5 LAC )CUE (W"6 '7 y4C f¤+ \ u f.2 .w t wA #d 25- d6t t5AB 1T7B ?@ LY)+ . 1T7B ?@ ; 1J7d I T O .

I( 7T9.22/ K.66w!xw- + y7( 1T7 5 T IA =7 P/Q .

9.22/K.66 F- AB G6

K.66_F9.2-2

&'*+ OBF

) (

! ?&'*+ , -.

"# $%.

, -. 8 !"# $% ?A'*B1 7B @#.

/0 2*3% 67

8 +9

:;9< =>LPS

–=>1 ?JP1 Q< G MET1 &'*+ , OBF1 .

H7I R% S =>1LPS

8 H7I ,'B%

5 J* +91 =>1LPS

(2004/12) ITU-T K.66 17

9.2.3 !H-7 !I

7(B '7 H*)CBN (w4AT 7T'7 25< /B bÀ. U kH . 16 ; ; 2#< 1T7B i/j ' 17S Q %&)SPD ( H( 27*HCBN. I =¬

wC Q5 H( I 17S QJ4 67d .wJ7# /" Q5 H* 73 s6t 0 I( H N'79.23/ K.66 P/Q Lx pH/B bÀ! U p k . 5* OnH N55< kH O3T

A Q5 J3wJ7# /" H* I( %AH # A #; y4C& %A ,+ # . HB Z"~ OnH7Yº #Ht< ,+ U\ =t< 6B 6 ¢ f7<+ J6 . L- Nl* ?U L"! +

w4x NHS 7 6B u- ] =7 OnH N )7+ I 5Q S4H d O6/ODH u.

9.23/K.66 !H-7 !I )CBN(

K.66_F9.2-3

8 ! @# , -.

"# $% ?A'*B1 7B

8 +9

:;9< =>LPS

5 J* +91 =>1LPS

! -.

?&'*+ , "# $%.

) (

/0 2*3% 67

H7I ,'B%8

18 ITU-T K.66 (2004/12)

9.2.4 <,"J - -K

w7T O6/; %& )7+ ¯ + Ou I< LPS N\ dC b I = u =7 WT OnH N I( H 9.24/K.66 . + NO6/; ]B ' d6t I 5Q TU+ )5Q& %& )7+ =7 OnH

Ou q#a %& H* )A btLPSl O 6 .

9.24/ K.66<,"J - -K

K.66_F9.2-4

:;9< =>LPS

H7I ,'B%8

8 ! @# , -.

"# $% ?A'*B1 7B

8+9

5 J* +91=>1LPS

! -.

?&'*+ , "# $%.

) (

6% ,'B% T'

:UT H7I ,'B%)V7W L9 XY(

(2004/12) ITU-T K.66 19

9.2.5 7<,"J

'7 H u ?Á / \ dC P/Q )7+ =7 O6/; IB 7®TEBB . = u I '7EBB I( mH N%& )7_9.25/K.66.

9.25/ K.66!#.L7 ABM" M N1-7 :,. '% O !" :QL- 7 M<" <,"J

9.3 ) E;SPD = '3F q#< 2)Q =®7SPD ;Imn(B #< ,+ p H( )5- =t< P/Q !"! 'Y . d6t O H( )5RT

Y kH IY) N 4H Imn(B H* 0 wAH N<S /A/ . q#<SPD 4 P/Q 7dY =H T In(B O/Q W ?B & ?U =¬ H( In( H7

) kH IY) !"! #$ O/AB 6Q" + 7dY .( q#< =³7 SPD =t< P/Q H( )5-#< ,+ p .

9.4 ';?G H+G; wH7 u q#< + q#a !"! l/ fV+ s7T =H 17- =( P([ N\ IY)

SPDIH P/Q 27*H 6Q 7U û L- NH/Q /IH 0 ± û L- !"! 1T7 'Y/ 'Y!"! 1T7OJ7# I .wWx //6 7d> IxT i3[ 6 :

• wCu /Y5 4/ OU7A ?d6B - 3Q 7#" I =7 O<> l/ 4 ,+ q#a O<> l/ 0SPD .4 I6 IB ,+ Ht! PQ7 t&* =¬ #"t

f7# I ? Q < ?du .wAHS / w4H i®/n W )w-À43t! q4H/ ( S600Iu\ P/Q . L- 5Q =C ?U #"t4 I6 IB Adu ?U 73

17- r(t

• AC 2#<\ f. 27R/ 6 =Â/Q LSPD / H N27; A(C 25 7"6 / LAC ITU-T K.65 [23].

– NB0Z [ .B L \% ]^F1 T _` aF 10>b DNB P. ' . c' .

K.66_F9.2-5

+9 #!:!7

:!7 +9 #!

' 8 9F d9>

:UT +9L9 e'0B87 L fg

:h H7I ,'B%

:h H7I ,'B%

$9 ' /0 2*3% 67

>i j*H7I ,'B%:h

20 ITU-T K.66 (2004/12)

10 )CPU(

6 U7AB IJC p LAC A x- 3/]B ; 5- LAC 9.2 V b x- NTU+ . 25- pCPU 2#< SPD2W"6 '7 y4C s7( O3 NTB ?@ I< . # r7u =®7

T « N; )"6Bw O O#O/Y5 l/ P/Q 7d 7 )q . 25- 0 1 =¬CPUµ\ Ou q#a .

5-/ OJ(Q LAC ®RCPU # g # 7 ^6+ t&* LAC! \ H-"B.

wt T V vQ\ 67S y N¶H I #/ : • 25- LACCPU 2)73

• 5- )5Q LACCPU.

10.1 &I %31@CPU A w5< H7u ¶ I #$ ; N# 25- Adu ; HC 67d %A # A .

; O3T<> 4H /B T/ !+ ; / ! .

10.11/ K.66!"07 !MJ 'R S. (#MT #(U

K.66_F10.1-1

#ka

b

L

N

#k:, .

_T'lE1

1

2

T9

E

m' n&'

3

(2004/12) ITU-T K.66 21

10.2 &I J; &9 %31@CPU # T /B # 0- 67d LAC ,+ XR n IH & NOnH 7x 25QH

25- ,+ ª/H 7"u # 5-CPUw4x 25- P/Q c6 )< 5Q - NCPUo )5A .TB I ; / ; O3T . 25- eQ IH W Û ,+ Ht! PQ7CPU 6B 5 c

C5 5u.

10.21/ K.66 R O % (#MV #(U CPU

11

763 U7AB '7 %& 1J7S +9.2.1 9.2.555< kH 3 /#C . N/Q f ?H N / NOnH763 PB 1J7d 255a z(B .

763 PB 1J7d/ #Ad =A" 56T J6 z(B . W3 5Q OnH /Q fwAd z(B 0 LY)+ P/Q 5u. - !+ N K"B 1J7d/ - l/ P/Q e

0R f7<+ O 6 4 6/A JxC u . 4C U N0 f7<+ e ! !; 2#< =7 N/S ' y4C LAC # VSPD 2763 7 NTU+ 8.1.

K.66 F10.2-1

o _T'lE1

1

2

#ka

b

L

N

:, .

T9

E

#k

3

m' &'

4

1

2

3

4

o _T'lE1

jT–_#!p SPD1' 2' 38 d9> qW JNBY ; L9 L -r . s' SPD4 Ql*1 V; L9 L -r #tB :.

22 ITU-T K.66 (2004/12)

12

Ã( 7U\ dn7# )"B HH = Y Q ,+ 2WH !"! #$ z( X . TB %& 6 '7 4( z(B IA OnHT[18] ITU-T K.27.

25Q z(B %A 5u L\ kHB A H(/ ? !"! IH #/Y5 ÄH7Y\ HB ,+ q¬ . 7 /x N#V kH I !"! #$ %& OnH ; Ix O3T

)73 kH )5" 6 ;.

(2004/12) ITU-T K.66 23

A

! "

A.1 =3 869 &" '34#! '$@; ) *+,TN-S ' P/Q 256 ?q vt TN-S d7 2)Q # ] N\ ,+ 0Hd6 5- 27*H I 7

H( )5 P/Q I"3 ² I IA NL)A I9. A.1.1 W#H !,X M6 $"% ', 34 YZ6 !Q6TN-S [96 L (#B ML-1\ [

!#2) >;7MET56-7 #-" <1#= AB7 !. ] WH (

I( 7vt 1.V 68 IEC 60950-1 [7].

A.11/ K.66 WQ6 W#H ;_ M6 $"% ', 34 YZ6TN-S [ !#2 [96 L `#B ML-1\

) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.1-1

a+'#B >Y

#k L1/L2/L3

N

1)

PE ) ( d9> ._7U8 '#B

MET

:0; 1 @#A'*B1 7B

3)

\% 8 +9p 1

F ;B@

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

7b1

main switch / CB / MCCB

' g'

1 DE1 F1 G# H 3;E =; =C HI*MET , + AJK+ )> 1,51L EM 34! AJ* = >- NK1 BO*,(

2 9 ' '%; G# H 3;E =; =C HI* SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD

.

RCCB / ELB

3)

7b2

4)

L1/L2/L3

N

PE

EBB

main switch / CB / MCCB / RCCB / ELB

' g'3)

L1/L2/L3

N

PE

EBB

L1/L2/L3

N

PE

L1/L2/L3

N

PE

PE

N

L1/L2/L3

2) 2)

24 ITU-T K.66 (2004/12)

A.1.2 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-S [96 L (#B ML-1\ [ !#2) >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 1.V 68 IEC 60950-1 [7].

A.12/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-S [

!#2 a b [96 L `#B ML-1\

);7 >MET56-7 #-" <1#= AB7 !. WH (

K.66_FA.1-2

L1/L2/L3

N

1)

PE

main switch / CB / MCCBRCCB / ELB

3)

4)

L1/L2/L3

N

PE

MET


3)

L1/L2/L3

N

PE

MET

L1/L2/L3

N

PE

L1/L2/L3

N

PE

PE

N

L1/L2/L3

2) 2)

.

.

5)

a+'#B >Y

:0; 1 @#A'*B1 7B

) ( d9> .

_7U8 '#B

#k F ;B@

p 1 \% 8 +9

1 DE1 F1 G# H 3;E =; =C HI*MET , + AJK+ )> 1,51L EM 34! AJ* = >- 1 BO*,NK(

2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 Q;KR S! . T B9P SPD 5 DE, C F1 U+ 340!5 VWX 01 E =C

7b1 7b2

' g' ' g'

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

$%& *# =C 78!, 9 :;!< = >- 45 ? @A9- B(RCD).

(2004/12) ITU-T K.66 25

A.1.3 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-S cd0 (#B ML-1\ [) >;7MET56-7 #-" <1#= AB7 !. ] WH (

I( 7vt 1.V 68 IEC 60950-1 [7].

A.13/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-S [

cd0 (#B ML-1\) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.1-3

L1

L2

1)

PE

MET

3)


3)

L1

PE

L3

L2

L3

PE

L1

PE

L2

L3

EBB

3)

L1

PE

L2

L3

L1

PE

L2

EBB

L3


4)

2) 2)

L1

L2

L3

a+'#B >Y

:0; 1 @#A'*B1 7B

) ( d9> .

_7U8 '#B

#k F ;B@

p 1 \% 8 +9

1 C HI*DE1 F1 G# H 3;E =; =MET , + AJK+ )> 1,51L EM 34! AJ* = >- NK1 BO*,(

2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 G# H 3;E =; =C HI* '%;! F1) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD

7b1 7b2

' g' ' g'

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

26 ITU-T K.66 (2004/12)

A.1.4 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-S (#B ML-1\ [ cd0 ) >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 1.V 68 IEC 60950-1 [7].

A.14/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-S [

cd0 `#B ML-1\);7 >MET56-7 #-" <1#= AB7 !. WH (

A.2 =3 869 &" '34#! '$@; ) *+,TN-C-S ' P/Q 256 ?q vt TN-C-S 2)Q # ] N\ ,+ 0Hd6 5- 27*H I 7

3 NL)A I9 d7 5- I Åh5 Ou IB L)A I) IPEN I p ; %&/ L)A (H( f< .

K.66_FA.1-4

L1

L2

1)

PE

MET


3)

L1

PE

L3

L2

L3

L1

L2

PE

L3

L1

PE

L2

L3

3)

L1

PE

L2

L3

L1

PE

L2

L3


4)

2) 2)

5)

MET

a+'#B >Y

:0; 1 @#A'*B1 7B

#k F ;B@

) ( d9> .

_7U8 '#B


2 9 ' '%; G# H 3;E =; =C HI* SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD 5 + 340!5 VWX 01 E =C DE, C F1 U

g'' ' g'

7b1 7b2

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

1 \% 8 +9p

(2004/12) ITU-T K.66 27

A.2.1 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-C-S L !" (#B ?ML-1\ [) >;7MET #-" <1#= AB7 !. ] WH 56-7(

I( 7vt 2.V 68 IEC 60950-1 [7].

A.21/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-C-S [

L !" `#B ?ML-1\) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.2-1

PE

L1/L2/L3

N

1)

MET

3)

4)


2)

RCCB / ELB

EBB

L1/L2/L3

PEN

PEN

N

PE

2)

EBB

L1/L2/L3

PENN

PE

L1/L2/L3 L1/L2/L3

L1/L2/L3


:0; 1 @#A'*B1 7B

#k F ;B@

) (

d9> ._7U8 '#B

p 1 \% 8 +9

+9H7I


2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 ;E =; =C HI* '%;! F1 G# H 3) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD

7b1 7b2

' g' ' g'

H7I' J,N +' H7I' J,N +'

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

28 ITU-T K.66 (2004/12)

A.2.2 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-C-S L !" (#B ?ML-1\ [) >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 2.V68 IEC 60950-1 [7].

A.22/ K.66 W#H ;_ M6 $"% ', 34 YZ6 WQ6TN-C-S [

L !" `#B ?ML-1\) >;7MET56-7 #-" <1#= AB7 !. WH (

K.66_FA.2-2

L1/L2/L3

N

1)

PE

4)

5)

PEN


2)

RCCB / ELB

MET

L1/L2/L3

PENN

PE

2)

MET

L1/L2/L3

PENN

PE

3)3)

L1/L2/L3

L1/L2/L3 L1/L2/L3


:0; 1 @#A'*B1 7B

) (

d9> ._7U8 '#B

p 1 \% 8 +9H7I +9


2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD 5 DE, C F1 U+ 340!5 VWX 01 E =C

7b1 7b2

H7I' J,N +' H7I' J,N +'

' g' ' g'

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-).2( . . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

#k F ;B@

a+ >Y

'#B

(2004/12) ITU-T K.66 29

A.2.3 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-C-S L !" (#B ?ML-1\ 8 [) >;7MET] WH 56-7 #-" <1#= AB7 !. (

I( 7vt 2.V 68 IEC 60950-1 [7].

A.23/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-C-S [

L !" `#B ?ML-1\ 8) >;7METB7 !. ] WH 56-7 #-" <1#= A(

K.66_FA.2-3

L1/L2/L3

N

1)

PE

MET

3)


3)


3)

4)

L1/L2/L3

N

PE

L1/L2/L3

N

PE

N

PE

L1/L2/L3

EBB EBB

#k F ;B@

) ( d9> .

_7U8 '#B

p 1 \% 8 +9


2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 =; =C HI* '%;! F1 G# H 3;E) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD

7b1 7b2

' g' ' g'

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-).2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

H#Y Z& TM"! !

30 ITU-T K.66 (2004/12)

A.2.4 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-C-S L !" (#B ?ML-1\ 8 [) >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 2.V 68 IEC 60950-1 [7].

A.24/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-C-S [

L !" `#B ?ML-1\ 8) >;7MET56-7 #-" <1#= AB7 !. WH (

K.66_FA.2-4

L1/L2/L3

N

1)

PE


3)

4)

L1/L2/L3

N

PE

5)

MET

L1/L2/L3

N

PE


L1/L2/L3

N

PE

MET

2)3)2)

#k F ;B@

) ( d9> .

_7U8 '#B

1 DE1 F1 G# H 3;E =; =C HI*MET , + AJK+ )> 1,51L EM 34! AJ* = >- *,NK1 BO(

2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 KR S! . T B9P Q;SPD 5 DE, C F1 U+ 340!5 VWX 01 E =C

p 1 \% 8 +9

7b1 7b2

' g' ' g'

87 +9 8 => \% 87 +9 > \%8 =

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

A9- B $%& *# =C 78!, 9 :;!< = >- 45 ? @(RCD).

H#Y Z& TM"! !

(2004/12) ITU-T K.66 31

A.3 =3 869 &" '34#! '$@; ) *+,TN-C

A.3.1 Q6 W#H !,X M6 $"% ', 34 YZ6 !TN-C Xe !f& Ng !L* FQe ) >;7MET56-7 #-" <1#= AB7 !. ] WH (

I( 7vt 3.V 68 IEC 60950-1 [7].

A.31/ K.66, 34 YZ6 WQ6 W#H ;_ M6 $"% 'TN-C،

L !" `#B ?ML-1\) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.3-1

L1/L2/L3

N

1)

PE

MET

3)

4)


2)

RCCB / ELB

L1/L2/L3

PEN

PEN

L1/L2/L3

N

PEEBB

2)

L1/L2/L3

PEN

L1/L2/L3

N

PEEBB


L1/L2/L3#k F ;B@

) (

d9> ._7U8 '#B

:0; 1 @#A'*B1 7B

p 1 \% 8 +9H7I +9


2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD

7b1 7b2

' g' ' g'

H7I' J,N +' H7I' J,N +'

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

32 ITU-T K.66 (2004/12)

A.3.2 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-C Xe !f& Ng !L* FQe ) >;7MET7 #-" <1#= AB7 !. WH 56-(

I( 7vt 3.V 68 IEC 60950-1 [7].

A.32/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-C

L !" `#B ?ML-1\) >;7MET56-7 #-" <1#= AB7 !. WH (

K.66_FA.3-2

L1/L2/L3

N

1)

PE

3)

5)


2)

RCCB / ELB main switch / CB / MCCB / RCCB / ELB

L1/L2/L3

PEN

MET

PEN

L1/L2/L3

N

PE

2)

L1/L2/L3

PEN

MET

L1/L2/L3

N

PE

4)

3)

L1/L2/L3

a+>Y

'#B

#k

:0; 1 @#1 7BA'*B F ;B@

) (

d9> ._7U8 '#B

p 1 \% 8 +9H7I +9


2 9 ' '%; G# H 3;E =; =C HI*SPD+ AJK+ , )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD 5 E, C F1 U+ 340!5 VWX 01 E =C D

7b1 7b2

H7I' J,N +' H7I' J,N +'

' g' ' g'

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

5 ? @A9- B $%& *# =C 78!, 9 :;!< = >- 4(RCD).

(2004/12) ITU-T K.66 33

A.3.3 ,X M6 $"% ', 34 YZ6 !Q6 W#H !TN-C FQe !f& #R ; Ng ) >;7MET56-7 #-" <1#= AB7 !. ] WH (

I( 7vt 4.V 68 IEC 60950-1 [7].

A.33/ K.66Z6 WQ6 W#H ;_ M6 $"% ', 34 YTN-C ; #R

FQ* <f&) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.3-3

L1

L2

1)

PE


N

MET

RCCB / ELB

2), 3)

L1

PEN

L2

N

PE

L1

L2

PEN

EBB

2), 3)

L1

PEN

L2

N

PE

L1

L2

EBB


L1

L24)

:0; 1 @#A'*B1 7B

#k F ;B@

) (

. d9>_7U8 '#B

p 1 \% 8 +9

H7 +9 'U)100 > ohm( -. JT GELB) >500ohm(


2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 9P Q;KR S! . T BSPD

7b1 7b2

% 3W0 3W0 %

' g' ' g'

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( 6 . 340!5 2

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

34 ITU-T K.66 (2004/12)

A.3.4 M6 $"% ', 34 YZ6 !Q6 W#H !,XTN-C <f& ; #R FQ*) >;7MET <1#= AB7 !. WH56-7 #-"(

I( 7vt 4.V 68 IEC 60950-1 [7].

A.34/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TN-C ; #R FQ* <f&) >;7MET56-7 #-" <1#= AB7 !. WH (

A.4 !TT

' P/Q 256 ?q vt TT q4 # f< N27*H 2" U] # 25- d6t wJ7# /6B %& )7_ / # & %& )7+ Q 256 ?q v A.

K.66_FA.3-4

L1

L2

1)

PE

N

5)

PEN


2), 3)


L1

PEN

L2

N

PE

L1

L2

MET

L1

L24)

2), 3)

L1

PEN

L2

N

PE

L1

L2

MET

:0; 1 @#A'*B1 7B

#k d9> ._7U8 '#B

F ;B@

p 1 \% 8 +9

'U)100 > ohm (

-. JT GELB) > 500 ohm(H7 +9 'U

1 DE1 F1 G# H 3;E =; =C HI*MET , + AJK+ )> 1,5! AJ* = >- 1L EM 34NK1 BO*,(

2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 . T B9P Q;KR S! SPD 5 DE, C F1 U+ 340!5 VWX 01 E =C

7b1 7b2

3W0 % 3W0 %

' g' ' g'

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-).2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

(2004/12) ITU-T K.66 35

A.4.1 M6 $"% ', 34 YZ6 !Q6 W#H !,XTT L `#B ML-17 X* <f& ) >;7MET56-7 #-" <1#= AB7 !. ] WH (

I( 7vt 5.V 68 IEC 60950-1 [7].

A.41/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TT :;h <f&

L `#B ML-17) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.4-1

L1/L2/L3

N

1)

PE


3)

4)

L1/L2/L3

N

PE

MET

L1/L2/L3

N

L1/L2/L3

N

2)

EBB


L1/L2/L3

N

PE

L1/L2/L3

N

2)

EBB

:0; 1 @#A'*B1 7B

d9> ._7U8 '#B

1 \% 8 +9p

#k F ;B@

) (

H7 +9 1 3;E =; =C HI*DE1 F1 G# HMET , + AJK+ )> 1,51L EM 34! AJ* = >-

NK1 BO*,( 2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD

7b1 7b2

' g' ' g'

5 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

36 ITU-T K.66 (2004/12)

A.4.2 M6 $"% ', 34 YZ6 !Q6 W#H !,XTT`#B ML-17 X* <f& L ) >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 5.V 68 IEC 60950-1 [7].

A.42/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TT :;h <f&

L `#B ML-17) >;7MET56-7 #-" <1#= AB7 !. WH (

K.66_FA.4-2

L1/L2/L3

N

1)

PE


.

RCCB / ELB

3)


4)

L1/L2/L3

N

PE

5)

MET

L1/L2/L3

N

L1/L2/L3

N

2)

3)

L1/L2/L3

N

PE

MET

H7IB ,'B% \%

L1/L2/L3

N

2)

a+>Y

'#B

:0; 1 @#A'*B1 7B

#k F ;B@

d9> ._7U8 '#B) (

p 1 \% 8 +9H7 +9


2 9 ' '%; G# H 3;E =; =C HI*SPD , + AJK+ )> 0,5 ( 3 =; =C HI* '%;! F1 G# H 3;E) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD 5 DE, C F1 U+ 340!5 VWX 01 E =C

7b1 7b2

' g' ' g'

8 => \% 8 +98 => \% 87 +9 H7IB ,'B% \%

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

(2004/12) ITU-T K.66 37

A.4.3 M6 $"% ', 34 YZ6 !Q6 W#H !,XTT X* <f& ) >;7MET ] WH 56-7 #-" <1#= AB7 !.(

v-4 ,+ Ht! PQ7 68 ( W 256 ?q 67d IEC 60950-1 [7].

A.43/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TT ; #R

FQ* <f&) >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.4-3

L1

L2

1)

PE


2)

N

MET

RCCB / ELB

3)

L1

N

L2

N

L1

L2


L1

N

L2

PE

EBB

4)

2)

L1

N

L2

L1

N

L2

PE

EBB

:0; 1 @#A'*B1 7B

#k F ;B@

d9> ._7U8 '#B

) (

p 1 \% 8 +9

H7 +9 'U)100 > ohm ( -. JT GELB) > 500ohm( 'U

1 DE1 F1 G# H 3;E =; =C HI*MET , + AJK+ )> 1,5 >- 1L EM 34! AJ* =NK1 BO*,(


7b 1 7b2

' g' ' g'

5 SPD& '*+ ,- ! "# $%(ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

38 ITU-T K.66 (2004/12)

A.4.4 M6 $"% ', 34 YZ6 !Q6 W#H !,XTT FQ* <f& ; #R) >;7MET WH56-7 #-" <1#= AB7 !. (

v-4 68 ( W 256 ?q 67d ,+ Ht! PQ7IEC 60950-1 [7].

A.44/ K.66 M6 $"% ', 34 YZ6 WQ6 W#H ;_ TT ; #R

FQ* <f&) >;7MET56-7 #-" <1#= AB7 !. WH (

K.66_FA.4-4

L1

L2

1)

PE


2)

N

MET

RCCB / ELB

3)

L1

N

L2

5)

N

L1

L2


L1

N

L2

PE

4)

2)

MET

3)

L1

N

L2

L1

N

L2

PE

:0; 1 @#A'*B1 7B

#k F ;B@

d9> ._7U8 '#B

) (

p 1 \% 8 +9

'U)100 > ohm ( -. JT GELB) > 500ohm(

H7 +9 'U


2 C HI* 9 ' '%; G# H 3;E =; =SPD , + AJK+ )> 0,5 ( 3 '%;! F1 G# H 3;E =; =C HI*) SPD DE1 MET ( , + AJK+)> 1,5 ( 4 B9P Q;KR S! . TSPD 5 DE, C F1 U+ 340!5 VWX 01 E =C

7b1 7b2

' g' ' g'

6 SPD! "# $%& '*+ ,- (ELB)) .1 ( /01 ,-) .2 .( . 340!5 62

45 ? @A9- B $%& *# =C 78!, 9 :;!< = >-(RCD).

a+>Y

'#B

(2004/12) ITU-T K.66 39

A.4.5 M6 $"% ', 34 YZ6 !Q6 W#H !,XTT :;h <f& )L ) ( >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 6.V 68 IEC 60950-1 [7].

A.45/ K.66i,B W#H ;_ M6 $"% ', 34 YZ6 TT :;h <f&

)L ) ( >;7MET56-7 #-" <1#= AB7 !. ] WH (

K.66_FA.4-5

L1

L2

1)

PE

MET

3)


2)

L1

L3

L2

L3


PE

L1

L2

L3

EBB

L1

L2

L3

4)

2)

L1

L2

L3

PE

EBB

L1

L2

L3

:0; 1 @#A'*B1 7B

#k F ;B@

d9> ._7U8 '#B

) (

p 1 \% 8 +9

H7I +9

1 E1 F1 G# H 3;E =; =C HI*DMET , + AJK+ )> 1,51L EM 34! AJ* = >- NK1 BO*,(


7b1 7b2

' g' ' g'

5 SPD! "# $%& '*+ ,- (ELB)) .1 (01 ,- /) .2 .( . 340!5 62

78!, 9 :;!< = >- 45 ? @A9- B $%& *# =C (RCD).

a+>Y

'#B

40 ITU-T K.66 (2004/12)

A.4.6 M6 $"% ', 34 YZ6 !Q6 W#H !,XTT :;h <f& )L ) ( >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 6.V 68 IEC 60950-1 [7].

A.46/ K.66i,B W#H ;_ M6 $"% ', 34 YZ6 TT :;h <f&

)L ) ( >;7MET56-7 #-" <1#= AB7 !. WH (

A.5 !IT

vt ' P/Q 256 ?qIT uA 17S Q \ / 25- d6t fxC N\ Q A 7/ )m5¢ . %& )7_ / # & q4 # f< .

K.66_FA.4-6

L1

L2

1)

PE

MET

3)


2)

L1

L3

L2

L3


PE

L1

L2

L3

L1

L2

L3

4)

5)

MET

3)

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L1

L2

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L2

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:0; 1 @#A'*B1 7B

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d9> ._7U8 '#B

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p 1 \% 8 +9

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1 DE1 F1 G# H 3;E =; =C HI*METAJK+ , + )> 1,51L EM 34! AJ* = >- NK1 BO*,(

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7b1 7b2

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(2004/12) ITU-T K.66 41

A.5.1 M6 $"% ', 34 YZ6 !Q6 W#H !,XIT L `#B ML-17 X* <f& ) >;7MET56-7 #-" <1#= AB7 !. ] WH (

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A.51/ K.66i,B W#H ;_ M6 $"% ', 34 YZ6 IT <f& :;h

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L2

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L2

L3

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PE

N

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7b1 7b2main switch / CB / MCCBRCCB / ELB

L1

PE

L2

L3

N

L1

L2

L3

N

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L2

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42 ITU-T K.66 (2004/12)

A.5.2 M6 $"% ', 34 YZ6 !Q6 W#H !,XIT L `#B ML-17 X* <f& ) >;7MET56-7 #-" <1#= AB7 !. WH (

I( 7vt 7.V 68 IEC 60950-1 [7].

A.52/ K.66i,B W#H ;_ M6 $"% ', 34 YZ6 IT :;h <f&

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K.66_FA.5-2

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7b1 7b2

2) 3) 2) 3)

METMET

' g' ' g'

N

L3

L2

L1

L1L1

L2L2

L3

N

PE

N

L3

L2

L1L1

L2

L3

N

PE

N

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a+>Y

'#B

:0; 1 @#A'*B1 7B F ;B@

L1

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(2004/12) ITU-T K.66 43

A.5.3 W#H !,X M6 $"% ', 34 YZ6 !Q6IT X* <f& )L ) ( >;7MET56-7 #-" <1#= AB7 !. ] WH (

I( 7vt 8.V 68 IEC 60950-1 [7].

A.53/ K.66i,B W#H ;_ 4 YZ6 M6 $"% ', 3IT :;h <f&

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L2

L3

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44 ITU-T K.66 (2004/12)

A.5.4 M6 $"% ', 34 YZ6 !Q6 W#H !,XIT X* <f& )L ) ( >;7MET" <1#= AB7 !. WH 56-7 #-(

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(2004/12) ITU-T K.66 45

B

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46 ITU-T K.66 (2004/12)

I2/ K.66 2 –! "#$

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(2004/12) ITU-T K.66 47

I4/ K.66 4 –0 %& '( )#*+, -..

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48 ITU-T K.66 (2004/12)

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(2004/12) ITU-T K.66 49

II

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50 ITU-T K.66 (2004/12)

III

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(2004/12) ITU-T K.66 51

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52 ITU-T K.66 (2004/12)

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53 (2004/12) ITU-T K.66

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K066A - ITU