Medium Voltage Swivel Pipe Poles - Electricity Distribution Companies

 Medium Voltage Swivel Pipe Poles - Electricity Distribution Companies

Columns of graduated tubes (galvanized) for medium voltage electricity transmission

Galvanized pipe suspension poles

Standard Specifications for Medium Voltage Graded Pipes

The Egyptian Electricity Holding Company has developed the technical specifications, engineering drawings, manufacturing, and implementation conditions for these columns and approved them to be a technical guide for suppliers and manufacturers to achieve the conditions, technical specifications, and engineering drawings contained therein when supplying the columns.

This specification covers the least possible needs for designing, manufacturing, testing, and supplying a 6/8/10 inch pole with a length of 12 meters.

This specification follows the Egyptian standard specifications (610/2013) and international codes in the manufacturing and supplying work for these columns.

Column models (suspension poles).

Suspension poles of graded and galvanized pipes of medium voltage are as follows:

- Model (6/8/10) inch suspension pole, length 12 meters.

Technical use of columns.

The poles are used to suspend the air conductors of medium voltage networks.

- These columns are used in an environment with a temperature of 45 degrees Celsius and a humidity of 95%

Pipe manufacturing materials

 - Pipes are made of hot-drawn black iron (Steel 37-2).

Pipe manufacturing and rolling

 - Pipes are manufactured and rolled with dedicated pipe production lines

 - Pipes are welded longitudinally or spirally according to Egyptian Standard No. (610/2013) mentioned in the technical specifications of the Electricity Holding Company.

- Pipes for typical production lines are produced with lengths of 6 meters

- The typical production of pipes leads to an increase in the waste of pipes during the assembly of columns.

Atypical production leads to an increase in the cost of columns and reduces losses in pipes, which is an equation between the typical and atypical production, whichever is lower for the public interest.

Technical requirements for galvanized pipe poles for transmission of electricity to medium voltage

Of the technical requirements in the manufacture and supply of electricity transmission poles of medium voltage and according to the specification approved by the Electricity Authority and the Egyptian Standard Specification (610/2013)

It includes the lengths and outer diameters of the pipes, the thickness of the pipes, the sections and the anatomy of the ores, and the cantilever materials for the columns.

Table (1)

suspension column

The lengths of the pipes, their external diameters, and the thickness of the column (6/8/10) inches, length 12 meters

M Statement Suspension Column Model

The length of the cantilever column is 12 meters

length                  diameter         thickness         length         number

1 Bottom Connector 4m 10"            5.56mm

2 medial connector 4m 8inch                  5.6mm

3 Top Connection 4.5m 6inch                 4.5mm

4 Hungarian beams size 10 cm 160 cm              1

5 angle 50 thickness 5                                       2

6 Kabuli jumpers 2

7 Weight of the column before galvanizing            350 kg

8 The weight of the cantilever before galvanizing is          27 kg

The weight of the column including the cantilever before galvanizing is          377 kg

9 Overlap middle pipe at the bottom               30 cm

10 The overlap of the third pipe per second is         

 30 cm