25FT 2.5mm Thickenss Hot Dip Galvanized Steel Pole Philippines NEA Standard
Description
1.Top diameter:120mm
2.Bottom diameter:152mm
3.Thickness:2.50mm
4.Material:Low alloy steel,yield strength not less than 345mpa(GB/T1591-2008standard)
C≤0.20,Mn≤1.70,Si≤0.50,P≤0.50,S≤0.0345
5.Marks:Nane plate through rivert or glue ,engrave ,emboss as per customer requirement
6.Welding :We has past flaw testing.Internal and external double welding makes the welding beautiful in shape
Welding Standard :AWS ( American Welding Society ) D 1.1
Penetration :100%
Specification of NEA poles
| Distributionh Steel Pole Of National Electrification Administration Philippines |
| Height(FT) | Thickness(mm) | Butt Dia(mm) | Top Dia(mm) | Yield Stress(mpa) | Zinc coating(microns) | Design Load(Kg) |
| 25 | 2.5 | 152 | 120 | 345 | 85 | 300 |
| 30 | 3.0 | 226 | 127 | 345 | 85 | 500 |
| 35 | 3.0 | 248 | 127 | 345 | 85 | 500 |
| 40 | 3.0 | 317 | 127 | 345 | 85 | 500 |
| 45 | 3.0 | 317 | 127 | 345 | 85 | 500 |
Our procession
Raw Material
When purchasing the raw material (steel plate), on sheet of mill certificate from mill factory must be enclosed. When the raw material arrives at the warehouse, the quality department must take the elongation test and the chemical composition analysis to make sure the raw material have meet all the standard that the needed before production.
Plasma Cutting
Cutting the raw material that have meet all the standard required into different length and width. CNC laser cutting is used to direct the material or the laser beam generated. A typical commercial laser for cutting materials would involve a motion control system to follow a CNC or G-code of the pattern to be cut onto the material. The focused laser beam is directed at the material, which then either melts, burns, vaporizes away, or is blown away by a jet of gas, leaving an edge with a high-quality surface finish.
Molding
Forming the cut steel plate into the shape (circular or polygonal or other shape ) that as per specified in the drawing. This invention relates to forming devices and more particularly to devices or machines for bending longitudinally rolled sections or strips of metal stock to desired curvilinear shapes.
Welding
After molding, weld the steel plate together. Usually it is longitudinal welds. It adopts A.C.inverter control, with functions of stable running and fast traveling speed; The seam-tracking arc-guide mechanism is three-spindle system to guarantee the alignment without aberrancy; The main frame and welding machine are intergrated control, with flux auto-recovering system and it is easy to operate with high efficiency.
Galvanization
All poles internally and externally are to be hot-dip galvanized in accordance with requirement mentioned in the relevant drawing or specification
Galvanization standard:IS2629-1985 ,BS729-1971
Installation
1.Remove all the equipment on the pole during Assembly.
2.Circle a sling around th epole shaft of each section.
3.Fix the sling on top section to one pulley block.
4.The sling on the bottom section is tightly fixed and fixed at the center of gravity.
5.Make the steel pole vertical by tighten the sling of the top section.
6Fix the steel pole.
7.Remove the sling.
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25FT 2.5mm Thickenss Hot Dip Galvanized Steel Pole Philippines NEA Standard Images
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