300 poles / day

PCC Poles

Prestressed concrete poles cast at 300 a day, designed and tested to IS 1678:1998 with dimensions to your utility's standard drawing. This is where the business started in 2006.

Lengths9 m and 11 m

Output300 a day

StandardIS 1678:1998

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Pole casting beds under the gantry

The line we were founded on.

Everything else on this campus was added around the pole yard. Twenty years on it still runs at 300 poles a day, and it remains the product most closely tied to the rural electrification work that built our field record.

One point of accuracy that matters: neither IS 1678 nor IS 785 contains a table of pole dimensions. They are performance standards — they fix the concrete grade, the load factor, the cover, the planting depth and the test method, and leave the section geometry to the standard drawing. A pole dimension table captioned “as per IS 1678” is therefore wrong, and a knowledgeable buyer will notice. We build to IS 1678 and to your drawing, and we say which is which.

General

Parameter	Specification
Product	Precast prestressed concrete (PSC/PCC) poles
Lengths	9 m and 11 m standard; other lengths as per client request
Working load classes	Typically 140, 200, 280 and 300 kg — to your standard drawing
Section	Rectangular tapered, constant width with tapering depth
Design standard	IS 1678:1998
Dimensions	To utility or REC standard drawing — not defined by IS 1678
Daily capacity	300 poles

Construction

Parameter	Specification
Concrete grade	Not less than M40 per IS 1678
Prestressing steel	High tensile wire, tensioned and untensioned as per drawing
Cover to reinforcement	Per drawing, minimum per IS 1678
Curing	Steam or water cured
Load factor on transverse strength	Not less than 2.5
Design load applied	600 mm below the top
Marking	Manufacturer identification, month and year, serial number, and centre of gravity marked C.G.

Reference data — what the standards requireTables from the Indian Standard, for checking any quotation against it

What the standards actually fix

Prestressed against reinforced concrete pole requirements

Requirement	IS 1678:1998 — prestressed	IS 785:1998 — reinforced
Minimum overall length	6 m, thereafter in steps of 0.5 m	6 m to 9 m, steps of 0.5 m
Concrete grade	Not less than M40	Not less than M25
Load factor on transverse strength	Not less than 2.5	Not less than 2
Design load applied	600 mm below the top	600 mm below the top
Transverse strength test	IS 2905	IS 2905
Crack criterion	No crack wider than 0.1 mm before design load	As IS 785
Planting depth	1.20 m for 6–7 m, up to 2.40 m for 17 m	1.20 m for 6–7 m; 1.50 m for 7.5–9 m

Neither standard contains a dimension table. Both are performance standards. Section geometry comes from the utility or REC standard drawing, and that is how it should be described on any specification sheet.

Standard and optional fittingsWhat is supplied as standard, and what is available to order

Scope

What we supply

9 m and 11 m PSC poles as standard; other lengths as per client request
Working load classes to purchaser specification
Cast, cured and stacked on site
Bulk supply against utility rate contracts
Loading and dispatch from our own yard
Supplied alongside conductor, cable and transformers as a package

Process

How a pole is cast

Mould preparation and release agent
Prestressing wire tensioned in the mould
Cage and spacer placement
Concrete placement and vibration
Steam or water curing
De-tensioning and demoulding
Stacking, marking and yard storage

Standards we manufacture and test to

Standard	Scope
IS 1678:1998	Prestressed concrete poles for overhead power, traction and telecommunication lines
IS 785:1998	Prestressed concrete poles for overhead power and telecommunication lines — reinforced type
IS 2905	Methods of test for concrete poles
IS 516	Methods of test for strength of concrete
IS 1343	Code of practice for prestressed concrete

Routine and type testsPerformed on every unit, and available on request

Routine tests

Performed on every unit

Dimensional check against drawing
Concrete compressive strength — IS 516
Transverse strength test — IS 2905
Crack width observation up to design load
Uprightness and straightness

Third-party inspection

Purchaser and third-party pre-dispatch inspection is accommodated on request, including for export consignments. Type-test certificates are issued from CPRI, ERDA or NABL-accredited laboratories — copies available on request.

Inside the works

The casting yard.

Moulds, curing beds and stacking all sit within the campus boundary.

Walk the whole works

Applications

Where it goes to work.

Utility

LT and 11 kV distribution

Standard distribution pole for rural and urban networks.

Rural

Village electrification

Bulk supply under national electrification schemes.

Lighting

Street lighting

Pole supply for municipal lighting installations.

Industry

Private networks

Estate and plant distribution lines.

What pole lengths and load classes do you make?

9 m and 11 m are the standard lengths, in working load classes typically from 140 kg to 300 kg. Other lengths are made as per the client's request. Send us your utility's standard drawing and we will quote against it.

Are your pole dimensions “as per IS 1678”?

The pole is designed and tested to IS 1678, but the dimensions are not — IS 1678 contains no dimension table. It fixes concrete grade, load factor, cover, planting depth and the test method. Dimensions come from the utility or REC standard drawing. Any supplier telling you their dimensions are per IS 1678 has not read the standard.

How is the pole tested?

By transverse strength test to IS 2905, with the design load applied 600 mm below the top. The pole fails if any crack wider than 0.1 mm appears before the design load is reached. The load factor is not less than 2.5 for prestressed poles.

Often supplied together