PSCC POLES
MPIIPL´s key product portfolio includes mainly utility poles for the power market segment. Utility poles are a common feature of our everyday landscape. They support the wires that bring electricity from the power company to our homes and enable our growing network of telephones, televisions, and computers. They are manufactured in various forms as PSCC poles, RCC (Reinforced Cement Concrete) poles and Spun poles. They are usually manufactured as per the standard specifications of the customer. The company supplies both categories of poles.
PSCC VS RCC
The basic comparison between PSCC and RCC poles is as follows.
| COMPARISON BETWEEN RCC & PRESTRESS CONCRETE | ||
| TOPIC | PRE-STRESSED CONCRETE | REINFORCED CONCRETE |
| Load bearing capacity | High | Comparatively low |
| Deflection | Less | More |
| Economy | Economic than RCC | Expensive |
| Shock resisting ability | High | Low |
| For long span | Applicable | Not Applicable |
| Self weight | Much less than RCC | Greater than Pre-stressed concrete |
Rectangular Poles
MPIIPL´s main business focus lies in manufacturing of PSCC poles. They are basically cement concrete poles which are pre-stressed using steel wires to provide more structural strength. They are manufactured as per standard REC specifications followed by various customer organizations implementing Rural Electrification programs launched by various state government-controlled electricity boards.
The PSCC poles are manufactured in different lengths varying from 8.0 M to 11.0 M and pole strengths varying from 140 Kgs to 400 Kgs. The length and strength of the pole selected depends on the height and strength requirements at the field level where poles are erected. The poles are solid structures, rectangular in shape at the cross-section and tapering along length.
Pole Specifications and Drawings
Hyderabad Plant
Sholapur Plant
Bhopal Plant
Chopan Plant
Tirupati Plant
Standards and Manufacturing Process:
The manufacturing process for Prestressed Cement Concrete (PSCC) and Reinforced Concrete Cement (RCC) Poles follows several steps, as outlined in REC Specification 15/1979, Indian Standards IS 1678:1998 [PSCC Poles], and IS 785:1998 [RCC Poles].
- Concrete Mixture Preparation: High-quality concrete is prepared by mixing cement, sand, aggregates, and water. The concrete mix adheres to the requirements specified in IS 1343:1980 and IS 456:1973.
- Prestressing: Steel wires or strands are embedded in the concrete before it sets. These wires are then tensioned to induce compressive stress in the concrete. The maximum compressive stress during prestressing should not exceed 8 times the maximum cube strength at 20 days, which should not exceed 420 kg/mm².
- Molding and Casting: The concrete mixture is poured into molds with the appropriate dimensions. The molds are designed to create the desired shape and size of the pole. The poles are then cast and allowed to cure.
- Curing: The freshly cast poles are kept in a controlled environment for curing. Proper curing ensures the development of strength and durability.
- Quality Control: The poles undergo rigorous quality checks. These checks include testing for dimensions, strength, and other relevant parameters according to IS 2905:1989 (Methods of test for concrete poles for overhead power and telecommunication lines).
- Transport and Installation: Once cured, the poles are tested as per IS 2905:1989 and then transported to the installation site. For proper handling and erection, customers should follow IS 7321:1974 (Code of practice for selection, handling and erection of concrete poles for overhead power and telecommunication lines). The poles are then erected and secured in place to support power lines.
These PSCC poles play a vital role in maintaining reliable power distribution networks.
Spun Poles and Piles
Manchukonda Prakasham Industries India Private Limited, a market leader in pre-stressed cement concrete flat poles in India, is planning to diversify into pre-stressed cement concrete spun pole/pile business by setting up a most advanced and state-of-the-art spun pole/pile manufacturing unit near Hyderabad, India. The project will be commissioned on fast track basis and is expected to be operational during the coming years.
Unlike the pre-stressed cement concrete flat poles and wooden poles, the spun poles have superior strength and appearance. The increase in strength is achieved through centrifugal spinning with those of pre-stressing and high-strength concrete in the manufacturing process. The advanced centrifugal spinning ensures the concrete is compacted into a hard and dense material exhibiting superior strength and excellent finish.
Applications
The company will be focusing primarily on the following few application segments to market spun poles:
- Transmission & Distribution Infrastructure (Power transmission & distribution poles)
- Township Lighting (Street/High-mast lighting & Sports/Yard lighting poles)
- Traction Infrastructure (Electric train traction poles)
- Telecom Tower (Telecom poles)
And for spun piles, the following are some of the application segments for immediate business focus:
- Foundation Pile (Building/Port/River Structures, Bridges, Retaining Walls)
- Columns (Building Structures, Bridge Piers)
Our Clients
