
66kv Steel Electrical Power Pole For Transmission Pole Design
Pole’s height | ≥5m |
Type | Low ,Middle and higher Voltage |
Shape of pole | Conical, Round, Polygonal (Octagonal, Dodecagonal, etc). |
Crossarm | Designas per customers’ requirement |
Material | Steel materials conform to ASTM A36, ASTM A572. |
Wall thickness | 2.5mm , 2.75mm, 3.0mm, 3.5mm, 3.75mm, 4.0mm, 4.5mm, 4.75mm, 5.0mm,etc |
Sections | ≤11900mm can be with one section and loaded into 40HQ container. |
Welding | Welding complies with CSA and AWS D1.1 standard. |
Joint | Joint with Slip Joint or flange mode. |
Installation | 1. Burial Type. |
Galvanizing | Hot dip galvanization in accordance with Chinese standard GB/T 13912-2002 or American standard ASTM A123. |
Min Yield Stress | 345 Mpa |
Min Tensile Strength | 470 Mpa ~ 630 Mpa |
Voltage | 10KV~550KV |
Limited Weight | 26 Ton/Container |
Certificates | ISO 9001-2008 , AAA credit rating, etc |
Protection | Anti-corrosion and rust free – suitable for coastal area, desert, oil field and industrial area |
Installation
The designing weight of the steel poles are usually relatively
light and is good for the operation, transportation,
assemble and installation.
Steel
The material is in accordance with NF EN 10025 standard and NF EN
10149 standard, it has the following
property.
- Yield Strength=355 N/mm2
- Thoughness remains the same under 20 degrees below zero
- Galvanization is in accordance with NFA35503 standard class I
Maintenance
The hot dip galvanization treatment can increase the service life
of the steel pole without the environmental
pollution and no need for other daily maintenance. The following described types are specially designed for
Africa Market which can meet the regulated height and load standard
of France electricity power company.
Production
Our steel pole is bent to form to the polygonal (conical) section
firstly. Then it is welded by the automatic
submerged-arc. Then it is welded by the automatic submerged-arc
welding machine.
Thirdly the top cap, strip and base plate will be welded to the
pole. And finally other accessories
(support brackets, ladder support, etc.) will be welded to the pole
shaft.
Manufacturer Tolerance
- Component Length: -25mm to 75mm
- Straightness: 2mm/m
- Twisting degree: 1̊ per 3 meters length
- Ovalisation : Maximum is 3%
- The average diameter : +/-0.5%
- Slip length: +/-150mm
Mechanical Property
The metal supports are designed to withstand the nominal force F
and the pressure of the wind V applied at
0.25m from the top. Under these loads, the safety factor with respect to the elastic limit of the steel is larger
than 1.8. The post also resists a torque equal to (F+V) ×1m. Tests shows the load intervened when breaking
is around 2 times of design load.
Jiangsu milky way steel poles co.,ltd
Estbilsed in 1989,Jiangsu Milky Way Steel Poles is located in Wuxi,East of China ,near one of the largest sea port of China ,Shanghai,Port .
Our Products have been widely used in the power transmsion ,signal transmission and ligting for street ,road ,square ,palaestra.and so on
We have plenty of export experience . Since our first overseas order from Pakstan in 1991 of 132 KV transmission poels ,our products have been deliveried to more than 70 contries and areas ,including America,Australia ,Russia ,Genmery ,Span,Philippines ,Malaysia and so on
To assure our products qualified ,we take steps as follows :
1. Management team : We have employ the foreign export to take chaege of the overall managemnt ,especailly the technical managemnt and quality management .
2. Introducing ISO management ,We are awared ISO 9001:2008 certificate . .
3. Lofting and design software :We have transmisson power pole design software which can help us design all kinds of steel pole ,at the same time ,the TMA and LMA are adopted by us to provide the design the drawing accuratly .
4. QC Inpection:It is our company policy that all the finish product should be inspected by our specialzed QC in every manufacure steps and beofore every shipment .
We are always persisting in horzontal cooperation with domestic senior project institute and technical colleges .The enterprise also has an highly qualified team working at R&D ,manufacure ,QC ,aftersales service and other important positions .