접지방식 5.1 5.1

접지방식5.1

- 139 -

55.1

.

5.1.1.

(IEC 60364). ,

5.1 . (1) : ,

. 5 5.1.6 . : 0 . :

: (2) : (6) (1) TN

.

5.1 (6) (7)

제 장 접지방식5

- 140 -

: ,

(3) : ,

-----

:

- ,- , , ,

(5) : (6) :

(bar)

.1)

,,.

, (6). ,

.

2)

, ,.

3)

.

접지방식5.1

- 141 -

.5.1 ,

.

1

( , ) , , , ,( , , , )

, ,

,

Ⅱ


- 142 -

5.1.2/ 2

.

.

..

PE.

..

, , ,.

.. TT ( )

5.2 ..

..

접지방식5.1

- 143 -

5.2 TT

. TN ( )5.3 TT .

. TN.

5.3 TN-C

. TN-C5.3 ,

(PEN) . 10 mm2. TN-C PEN , 3

TN-C. PEN

..

) TN-C “ ” “ ” . PEN,

.


- 144 -

. TN-STN-S 5.4 ,10 mm2 TN-S .

.. (PE) (N) (5 )

10 mm2.

5.4 TN-S

. TN-C-STN-C-S 5.5 5.6 .

TN-C TN-S . TN-C-S, TN-C (4 ) TN-S (5 ) .

.

5.5 TN-C-S

접지방식5.1

- 145 -

5.6 TN-C PEN

. IT1) IT

5.7. .

5.8.

, .5.9 3 3 1 km

3,000 ~ 4,000 Ω.

2) IT5.10 1,000 ~ 2,000 Ω

.. ,

, ,. ,

.


- 146 -

5.7 IT

5.8 IT

5.9 IT

접지방식5.1

- 147 -

5.10 IT

5.1.3 TT, TN, IT. TTTT

:.

: .TT 5.11 , .

5.11 TT

) ,.

..

..

. 500mA .


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.( RCD) ( ) .

. ,.

. TNTN

- .- . : .TN 5.12 5.13 , .

5.12 TN-C

5.13 TN-S

TN .- .-

, .- .- .- , .

접지방식5.1

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TN-C .- .- .- .••

TN-S .- .-

.

. ITIT

--- 2

---

IT 5.14 , .

5.14 IT

*IMD : Insulation Monitoring Device


- 150 -

.

. / /

. . .

,.

7 7.7.2 .

5.1.4 TT, TN, IT.

., , , .

, 3. , . 5.2

, , ,. ,

. , (SEA)*SEA : System Earthing Arrangements , /

,. .

, ( ) (, )

, 5.3

접지방식5.1

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5.2TT TN

-STN-C IT1 IT2

- -- -- + -- IT.

- - - + - IT ,. 2

+/-- - - + - TT ,, .

+ + + + + SEA .+ - - + - RCD

.(RCD) + + + + RCD SEA . TN-C

.

+ + + - + , IT.

+ - - + - .(1

/2 )- + + + + TT

. .

- + + + +TT

. TT.

- - - - - , SEA .+ + - + + PEN

.PE + - - + - PE .

- - - + + IT.

+ - - + - TN-S, TN-C, IT(2 ).

- + + - - TT RCD . ITIMD .

- + + -/+ -/+TT .IT

.- - + - - TN-C

.

- -- -- - -- .+ - - ++ - .


- 152 -

5.3

( 10 )ΩTT, TN,IT(1)

(30 )Ω TN TN-S IT(1)TN-C

( )( , TV ) TN TT IT(2)

(500 mA ) TN(4) IT(4)TT(3),(4)

TT(5) TN(5),(6) IT(6)

IT TT TN(7)

( ) IT TT TN(8)( , , ,

, ) TN(9) TT(9) IT( ,

, )TT(10)TN-S

IT(10)TN-C(10)

( ,) TN(11) TT(11) IT(11)

( ) TN-S TN-CIT(12bis) TT(12)

Y-Y (13) TT IT IT(13)

IT(15) TN-S(15)TT(15) TN-C(14)

TT(16)

TT(17) TN(18)IT(18)

(, ) TT(19) TN-S TN-C

IT(19)( , PLC) TN-S TT TN-C/ , PLC

(actuator) IT(20) TN-S, TT

(1) SEA ,. SEA ,

. ,.

(2) .. IT

2.

(3)(4) SEA ,

.

접지방식5.1

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(5)(6) .(7) TN .

, .(8) - ,

.(9) , SEA

.(10) , .

TT .(11)

. SEA ,.

(12) TT IT 2TN .(12bis) .

(13) . Y-∆.

(14) TN , TN-C .(15) , mA .(16) TT .

. , .(17)(18) . TN

.(19) . 30 mA

TT TN-S . IT.

(20) .

5.1.5 -,5.2 5.3 .

..

, ,.

. ..

./ “ (island)” 5.155.16

.


- 154 -

5.15 IT TN-S

5.16 TN-S IT

., ,

, ,. ,

.

5.1.6

.Ω

.

: m: mΩㆍ

.

접지방식5.1

- 155 -

.3 .

1) (buried ring)5.17

.. ,

. 4,

.50 cm

.. , 1 m

.(600 1,000 V) .

5.17

: 25 mm2 25 mm2 , 2 mm

: 35 mm2 : 95 mm2 100 mm2 , 3 mm

Ω

: [m]: [ m] ( .)Ωㆍ


- 156 -

2):

5.18, .

5.18

. . 1 m 2 m ,

. 2 m , 25 mm 15 mm

,2~3 . 1

. 4LΩ

: m: m ( 5.4 5.5 )Ωㆍ: .

접지방식5.1

- 157 -

:

3)5.19 50 cm

, 1 m. .

2 mm 3 mm (1)

(1) ,.

. .( ) .Ω

: m: mΩㆍ

5.19


- 158 -

.

.5.4

( m)Ωㆍ, 1 ~ 30, 20 ~ 100

10 ~ 150, 5 ~ 100

50100 ~ 20030 ~ 4050 ~ 500200 ~ 3001,500 ~ 5,000

, 300 ~ 500100 ~ 3001,000 ~ 5,000500 ~ 1,000

, 50 ~ 300800

, 1,500 ~ 10,000100 ~ 600

5.5( m)Ωㆍ

, 50, , 500, , 3,000

..

.

1)2 m .

1 m 1~3.

2)10 .

.

접지방식5.1

- 159 -

3)

.-- 1

..

, ,.

4).

.

.

.. ,

.

1)5.20 .

5.20


- 160 -

,.

85 Hz 135 Hz .,.

.

2) ( 5.21 ),(C)

. (X)(C) (X) ,

(P) . (X) (P).

(X) (P) . (X)(C) (X) (C)

(0) ., (X) (C) 3

(P) , ,(P) , (P) 5 m

. (X) (P)(X) (C) 0.68

.

설비시스템5.2

- 161 -

5.21

5.25.2.1

..,

.

, ., .

. 2.


- 162 -

- , EMI, , ,, , ,

-

..

., 5.22

5.24 .- (MLVS)- (MCC)--

, ,.

--

.

5.22 (a) - (Prisma Plus P)(b) - (Okken)

설비시스템5.2

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5.23 (Prisma Plus G)

(a) Prisma Plus G Pack (b) Kaedra (c) mini-Pragma

5.24

. 2.

,

1). , ,

., ,

.


- 164 -

2)

.

.- , , ,

. ,.

- .- .- .

Schneider Electric Prisma Plus G P 3,200 A, .

-- IEC 62439

- ,-

5.22(a), 5.23 5.24, 5.22(b) .

3 .

-5.25 , ,

.(plug-in)

.

설비시스템5.2

- 165 -

5.25 (Prisma Plus G)

-5.26 ,

, ..

5.26


- 166 -

-5.27 ,

..

,.

5.27

..

,. IEC

60439-1 .

IEC 60439-1IEC 60439-1 .

1)IEC 60439-1 . .

.

설비시스템5.2

- 167 -

..

,.

2).

,

.

, , .

3)5.28 ,

.“a” “b” 1 4 . 1 4

. , ..

1 : 2 : 3 : ,

4 : 3

. Prima Plus1, 2b, 3b, 4a, 4b .


- 168 -

5.28

4).

.

...

, . .----

. Modbus. Modbus (twisted

pair : RS 485) Ethernet-TCP/IP(IEEE 802.3) .www.modbus.org ,

.( )

.

설비시스템5.2

- 169 -

5.2.2;

.1)

.

, .

/. , , , ,

“ ” .

2).

1(G/Y) PE PEN .

2- , 5

“1” .- ,

. 3

5.6 .- (green and yellow)- (green)- (yellow)- (light blue) ; 2


- 170 -

Ph Ph Pn N PE Ph Ph Ph N PE1 G/Y

2 BL LB LB BL LB

+ G/Y BL G/Y

33 BL BN GY

2 + LB BL BN LB2 + G/Y BL LB G/Y+ LB G/Y BL LB G/Y

43 LB BL BN GY LB

+ 3 G/Y BL BN GY G/Y2 + + LB G/Y BL BN GY LB G/YPEN 3 G/Y BL BN GY G/Y

5 3 + + LB G/Y BL BN GY LB G/Y>5 : G/Y - : BL

“1” .G/Y: + BL: : 3 LB: BN: (Brown), GY:

) ,.

---

, G/Y. 5.29

.

설비시스템5.2

- 171 -

5.29

3)5.30, .

5.30

.--IEC 60364-5-52

.


- 172 -

. (IEC 60439)

.40 5,000 A∼

..

.5.31 .

( ,, , ) .

.

5.31 25 4,000 A∼

.

. , ,.

설비시스템5.2

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5.323 .

, ., 1,600/2,000 A . ,

.. 1,000 5,000 A ,

150 kA .

.- ,

. 20 70 kA 100 1,000∼ ∼A .

- , ,. 10 40 kA 40 400 A∼ ∼

.

.--

100 5,000 A (riser)∼.


- 174 -

.

-, ,

, , , . , 25 A40 A , 1.5 m

.-

, , , ,(false ceiling) . , 20 A

, 1.5 m 3 m .

. : , , , : , , , 3 : , , , ,

.IEC 60439-2 .

(, , ) IEC 60439-2

13 .

.

.1)

.

.

. .

설비시스템5.2

- 175 -

2) .

. . 50 %

. .

. , ,.

, .

3) . (fool-proof) .

4)

.( ) .

. .

5) . 5.33

1/3 . . PVC . .


- 176 -

5.33 Example: 30 m of canalis KS 250A equipped with 10 25 A, four-pole feeders

. (Canalis).

IP55 160 A 1,000 A∼

, , “VDI”( , ,)

. ,

(RoHS) .

. (Canalis)

5.34 : Canalis KDP(20 A)

설비시스템5.2

- 177 -

5.35 : Canalis KBA, KBB(25, 40 A)

5.36 : Canalis KBX(25 A)

5.37 : Canalis KN(40 160 A)∼

5.38 : Canalis KS(100 1,000 A)∼


- 178 -

5.39 : Canalis KT(800 1,000 A)∼

5.3 (IEC 60364-5-51) ( ) (IP), (IK)

.

5.3.1,. ,

. “ ”. IEC 60364-5-51

.

5.3.2,

, .

.

. (A, B, C).

- A :- B :- C :

외적 영향5.3

- 179 -

..

..

. ( )IP(international protection)

. , IPX .: IP XXB.

AC2 .A :AC : -AC2 : - 2,000 m＞

5.3.35.7 IEC 60364-5-51 ,

.


- 180 -

A -

AA1 -60 +5AA2 -40 +5AA3 -25 +5AA4 -5 +40 ( )AA5 +5 +40AA6 +5 +60AA7 -25 +55AA8 -50 +40

% g/m3

AB1 -60 +5 3 100 0.003 7 .AB2 -40 +5 10 100 0.1 7AB3 -25 +5 10 100 0.5 7AB4 -5 +40 5 95 1 29AB5 +5 +40 5 85 1 25AB6 +5 +60 10 100 1 35 .AB7 -25 +55 10 100 0.5 29AB8 -50 +40 15 100 0.04 36

AC1 2,000 m＜AC2 > 2000 m ( )

AD1 IPX0AD2 IPX1 IPX2AD3 IPX3AD4 IPX4AD5 (hose) IPX5AD6 ( , , ...) IPX6AD7 150 mm ,

1 m IPX7AD8 IPX8

외적 영향5.3

- 181 -

AE1 IP0XAE2 2.5mm IP3XAE3 1mm IP4XAE4 IP5X :

IP6X :AE5

AE6 IP6X

AF1AF2AF3 ,AF4AG1AG2AG3AH1AH2AH3

AH1AH2AH1AH2AM1 , (interharmonics)

IEC .

AM2AM3AM4AM5AM6AM7AM8AM9AM21AM22 nsAM23 msAM24AM25AM31AM41


- 182 -

AN1AN2AN3AP1AP2AP3AP4AQ1AQ2AQ3AQ1AQ2AQ3AQ1AQ2AQ3B-BA1BA2BA3BA4BA5

BC1IEC 61140BC2

BC3BC4BD1 /BD2 /BD3 /BD4 /BE1BE2BE3BE4C-CA1CA2CB1CB2CB3CB4

외적 영향5.3

- 183 -

5.3.4 : IP IK. IPIP 5.40 , IEC60529 IP . .----) IP 72.5 kV .

5.40 IP


- 184 -

. IPIP 5.41 .

5.41 IP

. IKIEC 62262 5.8

IK .

외적 영향5.3

- 185 -

5.8 IKIK (J) AG00 001 0.14≤02 0.20≤ AG103 0.35≤04 0.50≤05 0.70≤06 1≤07 2≤ AG208 5≤ AG309 10≤10 20≤ AG4

. IP IKIP IK IEC

60364-5-51.- ( AE)- ( AD)- ( )- ( BA)Prisma Plus . ,

Schneider Electric 5.9 5.10 IPIK .

. IP

IP303154/55

. IK5.10 IK

IK0708( )10

접지방식 5.1 5.1

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