MEGATRO 1000KV 10GB1-SZ4 Double Circuit Transmission Tower
MEGATRO 1000KV 10GB1-SZ4 double circuit Transmission tower
This photo refers to our 1000KV 10GB1-SZ4 double circuit Transmission tower, it is widely used in our Chinese market. Some of technical features of this tower as follow:
1 climate condition
Item |
Temperature (℃) |
Wind speed (m/s) |
Ice thickness (mm) |
Max. temperature |
40 |
0 |
0 |
Mini. temperature |
-20 |
0 |
0 |
Ice thickness |
-5 |
10 |
10 |
Basic wind speed |
-5 |
27 |
0 |
Installation condition |
-10 |
10 |
0 |
Annual temperature |
15 |
0 |
0 |
Lightning overvoltage |
15 |
10 |
0 |
Operation overvoltage |
15 |
16 |
0 |
2 Technical specification of conductor and OPGW
|
Item |
Conductor |
OPGW |
|
JL/G1A-630/35 |
JLB20A-240 |
||
|
construction |
AL |
45×4.22 |
--- |
Steel(Al wrap steel ) |
7×2.81 |
19×4.0 |
|
|
Cross-section (mm2) |
Al |
630.0 |
59.69 |
Steel |
43.6 |
179.07 |
|
Total |
674.0 |
238.76 |
|
Diameter |
33.80 |
20.01 |
|
Length mass (kg/km) |
2079.2 |
1595.5 |
|
Elastic module (MPa) |
63000 |
63000 |
|
coefficient of linear expansion (1/℃) |
20.9×10-6 |
13.0×10-6 |
|
Rated broken (N) |
150450 |
260010 |
|
3 tower design data
|
Tower type |
Nominal Height Scope (mm) |
Horizontal span (m) |
Vertical Span (m) |
Angle º |
Nominal height tower weight Kg |
10GB1-SZ4 |
63 |
620 |
750 |
0 |
133177 |
4 type and force of conductor and OPGW
|
Power voltage |
1000KV
|
Conductor type |
8×JL/ GIA-630/45 |
Max. operation Tension force (KN/phase) |
457.368 |
Un-balance Stress value(%) |
10 |
|
OPGW Type |
JLB20A-240 |
Max. operation Tension force (KN/pc) |
68.424
|
Un-balance Stress value(%) |
20
|
5 Operation data
|
Item
|
Horizontal span (m) |
Vertical Span (m) |
Representative Span (m) |
Angle º |
Height (m) |
KV
|
data |
520 |
750 |
400 |
0 |
63 |
0.85 |
6 loading data
|
Site condition |
Normal operation condition |
Accident condition |
Installation condition |
Uneven icing |
|||||||
Basic wind speed |
Ice |
Mini. temperature |
Non- broken |
broken |
|||||||
|
Climate condition (t/v/b) |
-5/27/0 |
-5/10/10 |
-150/0 |
-5/0/10 |
-5/10/0 |
-5/10/0 |
-5/10/10 |
||||
Horizontal loading |
conductor |
120890 |
37695 |
0 |
0 |
0 |
18367 |
37695 |
|||
|
Insulator Power fitting |
3873 |
531 |
0 |
0 |
0 |
531 |
531 |
||||
OPGW |
11357 |
6137 |
0 |
0 |
0 |
1731 |
6137 |
||||
conductor |
145558 |
213113 |
145558 |
213113 |
213113 |
234319 |
213113 |
||||
|
Vertical loading
|
Insulator Power fitting |
9806 |
11768 |
9806 |
9806 |
9806 |
9806 |
11768 |
|||
Jump & string |
15415 |
25197 |
15415 |
25197 |
25197 |
37206 |
25197 |
||||
OPGW |
388944 |
454712 |
334768 |
-- |
-- |
321976 |
-- |
||||
Stress force |
conduct |
One side |
388944 |
454712 |
334768 |
-- |
-- |
321976 |
-- |
||
The other side |
388944 |
454712 |
334768 |
-- |
-- |
321976 |
-- |
||||
Stress differences |
0 |
0 |
0 |
91470 |
0 |
45735 |
|||||
|
OPGW OPGW |
One side |
58117 |
65002 |
56692 |
-- |
-- |
54173 |
-- |
|||
The other side |
58117 |
65002 |
56692 |
-- |
-- |
54173 |
--- |
||||
Stress differences |
0 |
0 |
0 |
65002 |
0 |
13000 |
|||||
7 Foundation distance size
|
Nominal Height (m) |
Foundation distance (mm) |
Anchor bolt |
|||
|
Front distance |
Side distance |
Type and quantity |
Distance /radius (mm) |
Material |
|
51 |
17854 |
17854 |
12×M56
|
379.5 |
Chinese type 35 steel |
54 |
18574 |
18574 |
|||
57 |
19294 |
19294 |
|||
60 |
20014 |
20014 |
|||
63 |
20734 |
20734 |
|||
66 |
21454 |
21454 |
|||
69 |
22174 |
22174 |
|||
72 |
22894 |
22894 |
|||
75 |
23614 |
23614 |
|||
78 |
24334 |
24334 |
|||
81 |
25054 |
25054 |
|||
8 Foundation force
|
Nominal Height (m) |
Tx |
Ty |
T |
Nx |
Ny |
N |
51 |
418 |
395 |
3101 |
538 |
515 |
4100 |
54 |
419 |
397 |
3123 |
539 |
517 |
4122 |
57 |
423 |
406 |
3125 |
357 |
541 |
4176 |
60 |
425 |
408 |
3148 |
558 |
542 |
4199 |
63 |
426 |
410 |
3169 |
558 |
543 |
4220 |
66 |
433 |
407 |
3154 |
572 |
545 |
4307 |
69 |
434 |
409 |
3176 |
573 |
547 |
4329 |
72 |
435 |
411 |
3198 |
573 |
549 |
4350 |
75 |
440 |
416 |
3191 |
593 |
568 |
4425 |
78 |
442 |
418 |
3213 |
594 |
569 |
4447 |
81 |
443 |
420 |
3234 |
595 |
571 |
4468 |
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