MEAGTRO 1000KV 10GB2-SZ3 tangent transmission tower
This photo refers to our 1000KV 10GB2-SZ3 tangent 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 | -15 | 0 | 0 |
Ice thickness | -5 | 10 | 10 |
Basic wind speed | -5 | 30 | 0 |
Installation condition | -5 | 10 | 0 |
Annual temperature | 15 | 0 | 0 |
Lightning overvoltage | 15 | 15 | 0 |
Operation overvoltage | 15 | 18 | 0 |
2 Technical specification of conductor and OPGW
Item | Conductor | OPGW | |
JL/G1A-630/45 | JLB20A-240 | ||
construction | AL | 45×4.22 | --- |
Steel(Al wrap steel ) | 7×2.81 | 19×4.0 | |
Cross-section (mm2) | Al | 630.00 | 59.69 |
Steel | 43.39 | 179.07 | |
Total | 674.00 | 238.76 | |
Diameter | 33.80 | 20.01 | |
Length mass (kg/km) | 2079.20 | 1595.5 | |
Elastic module (MPa) | 63000 | 147200 | |
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 (mm) | Horizontal span (m) | Vertical Span (m) | Angle º | Nominal height tower weight Kg |
10GB2-SZ3 | 60 | 550 | 650 | 0 | 140342 |
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 | 550 | 650 | 400 | 0 | 60 | 0.8 |
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) | -5/30/0 | -5/10/10 | -40/0/0 | -5/0/10 | -5/0/10 | -15/10/0 | -5/10/10 | ||
Horizontal loading | conductor | 128401 | 27892 | ------ | ---- | ---- | 13387 | 27892 | |
Insulator Power fitting | 8880 | 1440 | ----- | ------ | ------ | 1440 | 1440 | ||
OPGW | 12588 | 3134 | 1197 | 3134 | |||||
Vertical loading | conductor | 106028 | 169208 | 106028 | 169028 | 169208 | 106208 | 169208 | |
Insulator Power fitting | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ||
OPGW | 10173 | 15581 | 10173 | 15581 | 15581 | 10173 | 15581 | ||
Stress force | conductor | One side | ----- | ----- | ----- | 91474 | 91474 | ----- | ----- |
The other side | ----- | ----- | ----- | 91474 | 0 | ----- | ----- | ||
Stress differences | ----- | ----- | ----- | 0 | 91474 | ----- | ----- | ||
Stress force | OPGW
OPGW | One side | ----- | ----- | ----- | 68424 | 68424 | ----- | ----- |
The other side | ----- | ----- | ----- | 0 | 68424 | ----- | ----- | ||
Stress differences | ----- | ----- | ----- | 68424 | 0 | ----- | ----- | ||
7 Foundation distance size
Nominal Height (m) | Foundation distance (mm) | Anchor bolt | |||
Front distance | Side distance | Type and quantity | Distance /radius (mm) | Material | |
48 | 17520 | 17520 | 12×M52 | 420.5 |
Chinese type 45 steel |
51 | 18240 | 18240 | |||
54 | 18960 | 18960 | 435.5 | ||
57 | 19680 | 19680 | |||
60 | 20400 | 20400 | |||
63 | 21120 | 21120 | |||
66 | 21840 | 21840 | |||
8 Foundation force
Nominal Height (m) | Tx | Ty | T | Nx | Ny | N |
48 | 428 | 384 | 3211 | 563 | 499 | 4251 |
51 | 433 | 391 | 3236 | 570 | 510 | 4264 |
54 | 438 | 396 | 3261 | 577 | 518 | 4316 |
57 | 440 | 409 | 3279 | 592 | 572 | 4396 |
60 | 454 | 424 | 3297 | 594 | 565 | 4474 |
63 | 462 | 432 | 3353 | 604 | 575 | 4545 |
66 | 469 | 449 | 3391 | 625 | 607 | 4616 |