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CHAPTER 3

THE CONSTANTS OF TWO CONDUCTOR LINES

3.1. A Q P S E.

W ,

. T

. T , ,

. W

. A ,

. A

, . T 1/ 2 .7 1 8 .. , , , . T

. I . 3.2

(3.1)

W:

( ) , , ( ) . ( 4 10/.)F , . (3.1)

6.64 (3.2)

T, 0.86 60 ,

0.0066 1 M

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F

,

. I (

),

. T ,

. H, ,

,

.

W ,

,

. T . I

, . 1.1. O ,

.

I ,

. T , ,

. A

:

.

T , ,

. F 3.1

. C , . T

, . A R / .T R , , , . S, R

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. T /, (1 10). T,

0

(3.3)

O , . B, ,

/

(3.3). I ,

: , . A,

.

F, . (3.3)

, . T

,

. W ,

,

.

W ,

, / . (3.3)

W ,

. T

. A

, . F

,

,

,

. O

,

. T,

. A ,

, . S

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. 3.5 3.6.

. 3.10 3.11

A

. H

.

I

. S , . T

1 2 M,

. B ,

.

3.2. S E P C1.

W , ,

. T . I ,

.

W ,

, . 3.3. ,

,

.

W 2

:

. (1 = 10). .

(1 /

, /, ). .

1S 3.2 3.6,

. T . 3.10 3.11 , , 2E , A.B. B R.E B,

T A M, . 459461, MG H B C, I., N . 1947, MIT

S, E C, C, J W $ S, I., N , 1940

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. ( 4 10/.) . , , .

T . T

,

/, . T

. T

cos ( . 3.2), cos

(3.4)

. T

.

T ()

( 4 ).

T

,

c os (3.5)

H .3 . (3.4) (3.5),

, ,

.

3T . (3.4) (3.5)

. ., . A, . (3.5) . T

.

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T . T

: . T O

, ,

.

N . 3.3 ,

. , .

(3.4) . T , O

, . T

. T, .

(3.4) . T

:

T, , . (3.4)

(3.6)I ,

. 2.1

(3.7)

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S . (3.6), , ,

(3.8)

T

, ,

(3.9)

S ,

(3.10)

E (3.10) , ; , .T (3.%). C . 3.3. T .

(3.5)

A

T,

A , ,

(3.11)

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T ,

(3.12)

T (3.10) (3.12), . (3.10)., . (3.12), /. T :

(3.13)

T , ,

/. S /, /, . B ,

,

/T

0,

. H ,

/ /

T

// (3.14)

W ,

2 (3.15)

A . 2.1.

( 3.14) = 0 . I

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. M E. (3.14) ,

/ cos (3.16)

T

E. (2.36). T

,

. T 1/ , . T ,

. A 5,

, 0.00674, . A .T 1/,

1 1/= 0.368.

2/ = 2, / = 2. A

F.3.4. ,

.

T . F , 4 10/, 1.74 10 . T E. (3.15), 1.74 10 4 10 0.0664

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T 60 , 0.857

0.34 . 10 0.066 , 10 M 0.0021 . ,

.

A

. C ,

S E. (3.14) ,

/45(3.17)

T,

/2 45. T .

T , H,

(3.14) (3.10). ,

1

/

U E. (3.15) , 2 1/

(3.18)

C E. (3.14) , ,

1 / 45(3.19)

T,

, 45, . A E. (3.17)

,

(3.20)

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T (3.5)

3.3. .

C . A F. 3.5.

.

C F. 3.5,

. A E.

(3.4), .

T ,

. A , ,

W . T

(3.21)

T E . / . T .

T , O ,

. D

, , , ,

(3.22)

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W .

S ,

. T (3.2 )

, .

T E. (3.21) . I , , S. 3.1.

F

.

3.4. T I I P C.

F , E. (3.17) (3.22)

,

1 /(3.23)

T :

/(3.24)

T . D ,

/(3.25)

I ,

,

.

I E1. (3.24)

. T

. T

. I , ,

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E. (3.20), . U ,

,

. T

,

, .

E. F

, . T .

U E. (3.24) ,

/(3.26)

, , .

U ,

.

A , = 1.74

X 10 = 4 X 10/ , 4.17 10 /

(3.27)I ,

4.17 10

/

(3.27)

.T E. (3.25), 2. T

2 14 /(3.28)

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T 1/ .I

. A

.

3.5 .

T . W

. T , , ,

.

C F. 3.6, . U (E. 3.4)

,

W

T,

A , ,

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T

,

U ,

(3.29)

T , E. (3.5).

,

2 2 U ,

2 2 T ,

1 (3.20)

T , (3.29) (3.30). :

1 (3.31)

T (3.13)

/. B 1/ , .E (3.31)

1 0(3.32)

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T

4

. W E. (3.32)

, , /.W

. W

(3.33)

T , E. (3.32),

2 3.2 4.3 1 2 3 T .., . ,

. E

; , ( ). N , , :

02 2 3.2 3.2

1

F, , ; , . T :

2 4E (3.32) B . T B

1

0 = 0. F B N. W.

ML, B F E, O U P, N , 1934.

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2

24 . I , :

(3.34)T

1 2

2. 4

2. 4. 6 (3.35)

T , . W ,

. I . I . H

,

2

2T , , E. (3.35)

1 2/2 2/2. 4 2/2. 4. 6

T . S ,

1 2/2. 4 2/

2. 4. 6. 8 2/

2 2/

2. 4. 6 (3.36)

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T ,

2/ ;

1 . ... (3.37)

2

2. 4. 6

2. 4. 6. 8. 10

T F. 3.7 3.8.5

T

2 2 (3.38)

T

, . I

, , 2 2

5A H. B. D, M T, . 214221, MG H

B C, ., N , 1941

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W (3.38)

2

2

2 2 (3.39)

T ;

. G . R F. 3.9 /. T , , . I ,

,

. T

2 10,500

0.102 . (N. 10 AWG), 5 66,000 .3.6. T I I C C.

A . (3.22), (

)

.

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T . (3.39) ;

, (3.5)

. I ,

2 (3.40)T , . (3.29),

(3.41)

T / . (3.39). , ..

2

2

2

2 2 2

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U , (3.39) (3.41) (3.40) . A,

2 (3.42)

2/.

N, . (3.22),

/S (3.42), 2 /

(3.43)

R ,

:

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2 /

(3.44)

2 /

(3.45)

I ,

0 ,

/ (3.46)

8 /T , ,

/. T . 3.8. T

2 .

I

. F . (3.44) (3.46),

2

(3.47)

4 (3.48)

2/.T / / . 3.10 3.11

, /. W ,

. (3.26) (3.28):

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(3.49)

T ,

2 ,

. T

. A , .

3.7. T F L C C.

I

,

C , . 3.12,

. T .

F , .

W . T

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( 4 ).

T, ,

2 2(3.50)

T , ,

2 (3.51)

W .I , , 4 10/.

N, . W

. T,

, /. A , /

2

2

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T, ,

2

(3.52)

W . T , , . A ,

. T

. 3.11.

T , . 3.13

. T

.

I ,

. F , . T

( 4 ). T,

2 . T , ,

/ (3.53)W . F ,

136 10/3.8. T C P L.

A . 3.14. A

. 1.1. , , , .C 1 , . W

, 2 .

W

( ).

C . T

,

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, ,

. A ,

. T . (3.51). ,

2 /B ,

2

I 2 , :

(3.54)

T ; , :

(3.55)

A 4 10/ ,

4 10 (3.56)

T . 3.6.

T , , . (3.45), , , . (3.46). / . 3.11 . I ,

, . I , . (3.52). ,

,

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2 W . T / ; ,

2

I 0 2 , :

4 (3.57)

D : 4

(3.58)

T . (3.46), /8 . T

,

4 10/:

10/ (3.59)I (

).

A , ,

. T

/, , . (3.59), 10/

(3.60)

T

. U . (3.56) (3.60),

4 10 /

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(3.61)

A ,

/, . T

. 3.11. , / .T , 1,609 /

N, . T

(. 3.53) , 2 :

2

W (

). T

; ,

10

36 /W

10/ (3.62)

I / .M , / 1.

F , / . T, . (3.61) (3.62) ,

120/ (3.63)

3 10/ /

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(3.64)

T

, . A

, ,

6

1036 2 /(3.65)

A , ,

4 10 2 /(3.66)

, 1/, . (3.64),

120/

(3.67)

T /. , .3.10. A . 3.4 :

, /. :

2

2 1

(3.68)

, , . ,

6S, , G. P. H, P E E, .40, MG H B

C,I., N , 1938. T , . 4.3.

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8.34 10 (3.69)

.3.9. T C C L.

.

,

( . 1.1).

. (3.51) /2.R . 3.15,

2 I = = , :

2

T ; ,

2 (3.70)

A ,

2 10 (3.71)

T . (3.53) /2, . = = ,

:

2

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2 /(3.72)

T : 118

/(3.73)

/ .F , .

60/

(3.74)

F ,

/, , .

I , 1/. T, 3 10/ /

(3.75)

I

.

T

,

. T

12 1 1 (3.76)

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, , . A ,

4.2 10 1 1 /(3.77)

.

A ,

, . A

, G

. T

, . , .

1 (3.78)

T

. I

90 . , , . . (3.78) /,

(3.79)

.T . F

, / . T , 2 2 2

, ., , /2, . , . O ,

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, . W , /3.6 . T

77/ . , , / .T

, ,

,

7. F ,

/, . T,

,

. I

,

. T

; ,

; ..,

22 2 .8 I , , ,

. ,

,

.

3.10. T C P .

A . 3.16. ,

. E . T

. U

,

, : 4 10 /(3.80)

7S, , W J, H T L, . 5358, M & C., ., L.

D U S S P, C, O.8S S. R J. R. W, F W M R, .9, J W & S, I., N ,

1944.

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136 10 /(3.81)

120/

(3.82)

2 /(3.83)

M . T

. I , , . T , , .