Download Is 5613-2-1 2002 Design of Overhead Power Lines Up to 220 kV PDF

TitleIs 5613-2-1 2002 Design of Overhead Power Lines Up to 220 kV
File Size596.3 KB
Total Pages39
Table of Contents
                            Title Page
0. Foreword
1. Scope
2. Terminology
3. General
4. Choice of Route
5. Electrical, Design
6. Structures
	Fig. 1
	Fig. 2
	Fig. 3
	Fig. 4
	Fig. 5
	Fig. 6
	Fig. 7
	Fig. 8
	Fig. 9
	Fig. 10
7. Power Conductors and Accessories
8. Earth Conductors and Accessories
9. Earthing
10. Maximum Working Tension for Conductors
11. Insulators and Fittings
12. Foundations
13. Clearances
	Table 1
	Table 2
Annex A
	Fig. 1
	Fig. 2
	Fig. 3
Annex B
                        
Document Text Contents
Page 1

© BIS 2007

B U R E A U O F I N D I A N S T A N D A R D S
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

IS : 5613 (Part 2/Sec 1) - 1985
(Reaffirmed 2002)

Edition 2.1
(1994-07)

Price Group 7

Indian Standard
CODE OF PRACTICE FOR DESIGN,

INSTALLATION AND MAINTENANCE
OF OVERHEAD POWER LINES
PART 2 LINES ABOVE 11 kV AND UP TO

AND INCLUDING 220 kV

Section 1 Design

( First Revision )
(Incorporating Amendment No. 1)

UDC 621’315’17’027’6’6 /’8 : 006’78

Page 19

IS
:
5
6

1
3

(P
a

rt 2
/S

e
c
1

)
-1

9
8

5

1
8

NOTE 1 — All holes are 17.5 mm diameter to suit 16 mm diameter bolts.
NOTE 2 — Blank holes at gate are to receive barbed wire.
NOTE 3 — One 3-mm spring washer to be provided under each nut.

All dimensions in millimetres.
FIG. 8 DETAIL OF ANTICLIMBING DEVICE

Page 38

IS : 5613 (Part 2/Sec 1) - 1985

37

B-2.9 Sag at 55ºC, Without Wind Load:
f2 [ f – (528 – 1 019)] = 4.220 3 × 108

∴ f = 618.3 kg/cm2; t = 1 617 kg
Sag = 3052 × 0.372/(8 × 618.3) = 6.996 m

B-3. CHECK FOR INITIAL TENSION AT EVERYDAY
TEMPERATURE, NO LOAD

B-3.1 Factors

∝ tE32 = 17.73 × 10–6 × 50 × 0.625 7 × 106 = 554 (Initial)
Z (initial) = 3052 × 0.3722 × 0.625 7 × 106/24 = 3.356 1 × 108

Z1 (initial) = 3.356 1 × 10
8 × 2.9632 = 29.465 × 108

K1 = 1 745 – (29.465 × 10
8)/1 7452 = 777.4

B-3.2 Tension at + 32ºC, No Wind Load:
f2 [ f (777 – 554)] = 3.356 1 × 108

∴ f = 778 kg/cm2 + T = 2 034 kg < 35 percent UTS

B-4. TABULATION
ACSR Conductor 30/7/3.0 mm

(Span 305 m)
Temperature Loadings Limiting Tension Sag

Load
Wind Ice Percent

Ultimate
Tensile

Strength
(1) (2) (3) (4) (5) (6)
ºC kg/m2 mm

(thick)
kg m

–18 1.0 × 40 12.7 50 4 565 7.345 (deflected)
,, nil ,, ,, ,, 5.620 (vertical)

–18 — 3 914 6.553 (projected)
0 ,, ,, — 3 650 7.026
0 ,, nil — 2 241 5.048

+32 ,, ,, 25 ( F ) 1 828 6.189
+32 ,, ,, 35 ( I ) 2 034 —
+55 ,, ,, – 1 617 6.996

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