REQUIREMENTS/GUIDELINES FOR PRODUCTION OF ELECTRICAL CONCRETE POLE
THE REQUIREMENTS/GUIDELINES FOR PRODUCTION OF ELECTRICAL CONCRETE POLE:
A sizable parcel of land easily accessible
Sufficient number of adequate gauge steel molds in line with the classes of pole respectively
The design specification for reinforced or pre-stressed concrete poles with relevant drawings
Well prepared concrete casting/molding bay (concrete floor area)
Minimum of two (2) number of industrial concrete mixer
Minimum of two (2) number industrial vibrators
Supply the following for the company’s manufactured reinforced or pre-stressed electric concrete poles;
Concrete mix ratio
Comprehensive Strength Test
Slump Test Result
Deflection Test
Factor of Safety for type of Pole Produced
Detail structural drawing of the Poles to be produced
Number of Steel rods for LT, HT and SP poles; 8.54, 10.36 and 12.20m respectively.
Adequate water supply to the facilities preferably borehole
Qualified supervising Engineer (Civil or Structural Engineer)
Experience Welder/Iron bender in additional to other production personnel
Adequate mechanical working tools
A well testing rig with associated pull winch and a good dial gauge of at least 2500KN/kg range
For circular/spun and pre-stressed types, the right equipment and facilities must be available on factory or production sites
Curing ponds of appropriate size capable of handling 10 & 15 No. poles at a time
Means of lifting poles to and out of curing ponds
All manufactured electric concrete poles shall have engraved on them: planting depth mark, date of manufacturing and initials of the manufacturing company
All manufactured poles concrete poles should have provision for concealing earthing wire and that will prevent pilferage by vandals
All materials use for the manufacture of electric concrete poles must be in conformity with the Nigerian Industrial Standards.