| Customization: | Available |
|---|---|
| Technics: | Welding |
| Standard: | GB |
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Hebei High quality cross arm for overhead transmission line
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Type |
galvanized steel cross arm |
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Suit for |
Electricity distribution
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Shape |
Conoid ,Multi-pyramidal,Columniform,polygonal or conical
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|
Material |
Usually Q345B/A572,minimum yield strength>=345n/mm2 Q235B/A36,minimum yield strength>=235n/mm2
As well as Hot rolled coil from Q460 ,ASTM573 GR65, GR50 ,SS400, SS490, to ST52- |
|
Torlance of dimenstion |
+- 2% |
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Power |
10 KV ~550 KV |
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Safety Factor |
Safety factor for conducting wine : 8 Safety factor for grounding wine : 8 |
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Design Load in Kg |
300~ 1000 Kg appliced to 50cm from the to pole |
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Marks |
Nane palte through rivert or glue ,engrave ,emboss as per customer requirement |
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Surface treatment |
Hot dip galvanized Following ASTM A 123, color polyester power or any other standard by client required.
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|
Joint of Poles |
Insert mode,innerflange mode,face to face joint mode .
|
|
Design of pole |
Against earthquake of 8 grade |
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Wind Speed |
160 Km/Hour . 30 m /s |
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Minimum yield strength |
355 mpa |
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Minimum ultimate tensile strength |
490 mpa |
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Max ultimate tensile strength |
620 mpa |
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Standard |
ISO 9001 |
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Length of per section |
Within 14m once forming without slip joint |
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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
|
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Thickness |
1 mm to 30 mm |
|
Production Process |
Rew material test → Cuttingj →Molding or bending →Welidng (longitudinal )→Dimension verify→Flange welding →Hole drilling →Calibration → Deburr→Galvanization or powder coating ,painting →Recalibration →Thread →Packages |
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Packages |
Our poles as normal cover by Mat or straw bale at the top and bottom ,anyway also can following by client required , each 40HC or OT can loading how many pcs will calculation base on the client actually specification and data. |
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