220kV galvanized steel lattice fais fab kab kis tau tus mob ntauwd
220kV galvanized steel lattice fais fab kab kis tau tus mob ntauwd,
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peb cov kev pabcuam tseem ceeb thiab cov khoom muaj xws li:
hluav taws xob ntauwd
telecom pej thuam
hluav taws xob substation qauv
ncej teeb
PV mounting qauv
Fais fab kis ntauwd
Lub tshuab xa hluav taws xob lossis hluav taws xob ntauwd (hluav taws xob pylon lossis hluav taws xob pylon hauv tebchaws United Kingdom, Canada thiab thaj chaw ntawm Tebchaws Europe) yog cov qauv siab, feem ntau yog cov hlau lattice ntauwd, siv los txhawb nqa lub zog hluav taws xob.
Lawv siv nyob rau hauv high-voltage AC thiab DC systems, thiab tuaj nyob rau hauv ntau yam duab thiab ntau thiab tsawg. Qhov siab zoo li ntawm 15 txog 55 m (49 txog 180 ft), txawm tias qhov siab tshaj plaws yog 370 m (1,214 ft) yees ntawm 2,700 m (8,858 ft) ncua ntawm Zhoushan Island Overhead Powerline Tie. Ntxiv nrog rau cov hlau, lwm yam khoom siv yuav siv tau, suav nrog pob zeb thiab ntoo.
Lub kaum sab xis-steel ntauwd, tsis tu ncua quadrangular truss qauv kev sib txuas lus ntauwd, siv Q345B zoo hlau ua lub ntsiab ntauwd lub cev khoom, nruj qauv, me me deformation; lub kaum sab xis steel splicing kev twb kev txuas, lub teeb yuag qhov chaw, ntauwd tuaj yeem nqa tau manually thiab ntsia ntawm tus nqi qis. Qhov siab tshaj plaws 6 txheej ntawm lub platform tuaj yeem nruab, txhua lub platform txhawb 6 tus kav hlau txais xov.
cov ntaub ntawv khoom
| Khoom siv | Nquag Q345B / A572, Yam tsawg kawg nkaus tawm lub zog ≥ 345 N / mm² |
| Q235B / A36, Yam tsawg kawg nkaus tawm lub zog ≥ 235 N / mm² | |
| Zoo li kub dov kauj los ntawm ASTM A572 GR65, GR50, SS400, lossis lwm yam qauv los ntawm cov neeg siv khoom xav tau. | |
| Lub Zog Muaj Peev Xwm | 200 KV TSI |
| Vuam | Vuam ua tau raws li tus qauv AWS D1.1. |
| CO2 vuam lossis submerged arc pib txoj kev | |
| Tsis muaj fissure, caws pliav, sib tshooj, txheej lossis lwm yam tsis xws luag | |
| Sab hauv thiab sab nraud vuam ua rau tus ncej zoo nkauj zoo nkauj | |
| Yog tias cov neeg siv khoom xav tau lwm yam kev xav tau ntawm vuam, peb kuj tuaj yeem hloov kho raws li koj qhov kev thov | |
| Galvanization | Kub dip galvanization raws li Suav tus qauv GB / T 13912-2002 thiab American standard ASTM A123; los yog lwm yam qauv los ntawm cov neeg siv khoom xav tau. |
| Sib koom | Sib koom nrog hom ntxig, flange hom. |
| Kev pleev xim | Raws li cov neeg siv khoom thov |
Kub-dip galvanization
Galvanized txheej txheem: ISO: 1461-2002
| Yam khoom | Thickness ntawm zinc txheej |
| Standard thiab yuav tsum tau | ≧86m |
| Lub zog ntawm adhesion | Corrosion los ntawm CuSo4 |
| Zinc tsho tiv no tsis raug stripped thiab tsa los ntawm hammering | 4x ua |
