30 Ft 3mm NEA เสาไฟฟ้าเหล็กชุบสังกะสีสำหรับโครงการ Overhead Line
เสาไฟฟ้าเหล็กอาบสังกะสี เสาไฟฟ้าเหล็กอาบสังกะสี 3 มม. เสาไฟฟ้าเหล็กอาบสังกะสี 30 ฟุต
,3MM galvanized steel power pole
,30 ft galvanized steel power pole
30ft 3mm NEA galvanized electrical power pole for overheadline project
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.
Galvanization
Standard: NFA91121
Average thickness of the galvanization: Not less than 70
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
Standard Accessory
- Top plate
- Base plate
- Bottom Strip
- Standard Hole
- Climbing Rung
- Anchor bolt
- Bitumen Protection
- Painted Marking
- Removable Ladder
The information to inquiry or purchase
- Steel pole height and force
- Cross arm type and length, the position to install in the steel pole
- The method to fix the cross arm (use Bolt to connect or use one or two template to weld in the steel pole to install the cross arm)
- Safety factor of the steel pole
- Wind speed
- Type of climbing rung
- Destination port
- Others
