9 Meters Tubular Steel Pole For Low Voltage Overhead Electrical Networks

1. Climate Conditions:

The following is applicable unless otherwise is mentioned:

a. Maximum Ambient Temperature 50 Co

b. Minimum Ambient Temperature -10 Co

c. Design temperature 45 Co

d. Maximum daily range of air temperature 20 Co

e. Maximum Wind Pressure 420 n/m2

f. Ice Thickness 10 mm.

g. Snow Falls 1-4 days – 30 cm.

h. Site altitude 0-1400m ASL

i. Average annual rainfall 40cm during November–April

j. Relative humidity in the range 30 to 60%.

k. Average number of thunder storms 15 days / year

l. Prevailing wind winter average daily approximately 5-8 m/s, with gust up to 30 m/s.

m. Summer wind average afternoon 10-13 m/s, during morning generally light and variable, gust speed up to 30 m/s.

2. General Contract Description: Tubular steel poles being supplied under this contract shall be used by the purchaser as supports for carrying Low Voltage, Overhead electric network conductors.

3. Applicable Standards that shall be followed as minimum requirements accordance to BS EN 10255/2004 medium and astma53/ a53m-2012 for 9met , 9 met poles

4. Free from defects : Poles shall be well finished, clean and free from harmful

• Surface defects, ends of the poles shall be cut square. Poles shall be straight
• Smooth and cylindrical.

5. packing and shipment :

The packing and shipping requirements shall be fulfilled as follows:

1. Low Voltage, 4.5" 9m length tubular steel Poles shall be delivered in bundles of 6 poles with the arrangement of 2 layers, with 3 poles per layer, and strapped at four (4) locations of equal distances with the use of steel straps size 30 mm x 0.8 mm (min.) and necessary wood separators underneath the steel straps.

2. Low Voltage, 5.5" 9m length tubular steel Poles shall be delivered in bundles of 6 poles with the arrangement of 2 layers, with 3 poles per layer, and strapped at four (4) locations of equal distances with the use of steel straps size 30 mm x 0.8 mm (min.) and necessary wood separators underneath the steel straps.

• a- Low Voltage tubular Steel Poles Description(4.5 ,5.5)

The poles shall be manufactured from galvanized steel tube, at which the galvanized steel tube shall be manufactured from weldable structural steel plates according to BS EN 10255/2004 medium, that shows an analysis not more than 0.030% of sulfur and not more than 0 .035% phosphorous hot dip is required to EN ISO 1461/2009, 505 gm/m2 or micron equivalent thick on one face.

The dimensions of all galvanized steel tubes shall consider during fabrication shown in the table below:

Materials Nominal Size pole 4.5:

a) Minimum grade of steel LV poles ST having a tensile strength for tubs not less than 400

n/mm2.

b) Structural steel for top cap shall be hot galvanized minimum thickness 2 mm, welded around and painted silver color.

c) Fully galvanized before fabrication and painted silver color two coats EPOXY after fabrication at all jointing and welding.

d) Fully galvanized after fabrication for poles (as an option).

e) Each pole shall be provided with circular red color marking consisting of 20 mm wide Band located at 2 m from the bottom of the pole.

f) All poles (galvanization layer) after the production shall be free of any defects during SWAGED.

g) The pole shall be bear minimum tensile strength 450 (Kgf).

Materials Nominal Size pole 5.5:

a) Minimum grade of steel LV poles ST having a tensile strength for tubs not less than 450 n/mm2.

b) Structural steel for top cap shall be hot galvanized minimum thickness 2 mm, welded around and painted silver color.

c) Fully galvanized before fabrication and painted silver color two coats EPOXY after fabrication at all jointing and welding.

d) Fully galvanized after fabrication for poles (as an option).

e) Each pole shall be provided with circular red color marking consisting of 20 mm wide Band located at 2 m from the bottom of the pole.

f) All poles (galvanization layer) after the production shall be free of any defects during SWAGED.

g) The pole shall be bear minimum tensile strength 500 (Kgf).

Materials :

a) Minimum grade of steel Low voltage poles ST having a tensile strength for tubs not less than 500 N/mm2.

b) Structural steel for top and bottom cap shall be hot galvanized minimum thickness 2 mm, welded around and painted silver color.

c) Fully galvanized before fabrication and painted silver color two coats EPOXY after fabrication at all jointing and welding.