power transmission line tower

Electric Power Transmission Line Tower : 1. Category: O TRANSMISSION ANGLE TOWERS O STEEL PIPE COMBINATION TOWERS O STEEL TUBE POLES O SUBSTATION STRUCTURES O ALL KINDS OF CUSTOMIZED STEEL TOWERS 2.Certificate :ISO 9001,ISO14001, OHSAS 18001 3. Production equipments Type Straight Pole ,Tensile Pole ,Turn Pole Suit for Electricity distribution Shape Conoid ,Multi-pyramidal,Columniform,polygonal or conical Material Usually Q345B/A572,minimum yield strength>=345n/mm2 as main material Q235B/A36,minimum yield strength>=235n/mm2- as auxiliary material.Q420B Tolerance of dimension +- 2% Power Voltage 10 KV ~550 KV Design Load in Kg 300~ 1000 Kg appliced to 50cm from the to pole Marking Name plate through rivert or glue ,engrave ,emboss as per customer requirement Surface treatment Hot dip galvanized Following ASTM A 123, color polyester power ,painting or any other standard by client required. Joint of Poles Slip joint connection or flange connection Design of pole We can design free of charge if Qty is numerous, client should supply the design parameter. Standard ISO 9001:2008 Length of per section Within 14m once forming without slip joint Welding Submerged arc welding , internal and external double welding makes the welding seam beautiful in shape Welding Standard :AWS ( American Welding Society ) D 1.1 Thickness 1 mm to 30 mm Production Process Raw material test → Cutting→Molding or bending →Welding (longitudinal )→Dimension verify →Flange welding →Hole drilling →Calibration → Deburr→Galvanization or powder coating ,painting →Recalibration →Thread →Packaging 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.