self supporting tower usually is 3leg of 4leg tower, and its material is steel pipe or angle steel. As for the connection, tubular tower is connected by flange, and angle steel tower is connected by nuts and bolts.
Telecommunication Tower&Transmission line tower&accessories- Goods description and major parameters
||Detailed Specification and Major design Parameters
||ANSI/TIA222G, European Standard and others
||1. Antenna load area as per specified by Clients worldwide.
2. Wind speed as per requested by the clients.
3. Deflection & Twist Angle, Exposure category, Topographic category as per specified by clients.
||ISO 1461 2009, ASTM A123
||1. High strength low alloy structural steel: Q420B which is equivalent with ASTM Gr60
2. High strength low alloy structural steels: Q345B which is equivalent with ASTM Gr50 or S355JR
3. Carbon Structural Steel: Q235B which is equivalent with ASTM A36 or S235JR
||Bolts and Nuts
||Mainly ISO 898 grade 6.8 and 8.8 bolts
||50KPa, 100KPa, 150KPa soil bearing capacity mainly.
||1. 3 Leg Self supported Angular Towers
2. 3 Leg Self supported Tubular Towers
3. 4 Leg Self supported Angular Towers
4. 4 Leg Self supported Tubular Towers
5. Guyed Mast
6. Monopole Tower
7. Camouflaged Tower: Palm Tree, Pine Tree, Coconut and others tree
8. RDS Tower: Rapid Deploy Site/Tower
9. Rooftop Towers
10. Smart Poles
||1. Tower structures: 10 years
2. Camouflaged towers
a. Barks: 10 years
b. Branches and leaves: 3 years
||1. Paint kits (ICAO standards): Water Based Acrylic Anticorrosive Paint which include Primer, International Orange/Red and Ivory White
2. Aviation Light: 48V/220V Double Light and Single Light & Solar Light
3. Lightning System: Lightning rod with 70mm2 G/Y copper cable down conductor or 25x3mm copper flat tape with clamps, and copper coated steel busbars or as per specified by clients.
4. Earthing System: Earthing Rod with copper clad steel strand cable and lugs etc. or as per specified by Clients.
5. ACDB as per specified by clients
6. Fencing: Palisade fence and wire mesh fence with razor wires and gate.
7. Fall arrest system: GB and CE certificate fall arrest system.
8. Optical Fiber Cable: as per specified by client
9. Generator: as per specified by client
10. Canopy and Generator Cage: as per specified by clients