These type of cables are installed on the Top Peak of the Power Transmission Line Tower. Further, there are Optical Fibres assembled in the centre of the OPGW which can be used as a medium for Data Transmission. A typical OPGW will have around 24, 48 or as per design required numbers of individual optical fibres. The main function of Optical Fibres is transmission of light signals which are used for Data Transmission. Primary function of the OPGW remains providing grounding to the fault currents being produced due to lightning strikes which is provided by Metallic Conductors made up of Aluminum Clad Steel Wire. The optical fibres are assembled in the centre of the tube so that data connectivity can also be established. OPGW Cables have the dual functions of Ground Wire with Communication Capabilities.
We are leading manufacturer and Supplier of OPGW Cable in India. We are approved vendor of POWERGRID for supply of OPGW Cable. We are fully capable to manufacture different Cable Dia as per requirement of Clients and our Cable dia with 12.00MM, 12.1MM & 11.5MM are approved in POWERGRID & State Electricity Boards.
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The product 24F &48F-OPGW contains outer layer of metallic conductors made up of Aluminum Clad Steel Wires. The tube consists of required numbers of buffer tubes of different unique colours. These buffer tube consists required numbers of individual optical fibres.Each individual optical fibre is coated with a unique/different colour. The individual optical fibers are very thin strands of pure glass and it is designed to transmit light signals from a transmitter to a receiver.
The construction of an individual optical fiber are as follows:
Optical fibers are individually produced and then cladded and coated. Dual acrylate layers are applied to each individual optical fiber. Then a color coating is applied.
The second layer of UV acrylate is a high-modulus, abrasion resistant coating which provides stronger mechanical protection of the glass fiber during handling, cable manufacturing and installation. The color coating is added immediately after the dual UV acrylate layers are applied.
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OPGW or known as Optical Ground Wire is a type of cable or wire that is used in transmission lines construction. It is also known as optical fiber composite overhead ground wire. OPGW have the characteristic that there is no effect of high voltage induction on the data being transmitted through the Fibers. Hence this characteristic of the Fiber is taken into advantage to transmit the data along the high power transmission lines. Optical fibers within the cable can be used for high-speed transmission of data.
Relatively low cost solution to provide Communication and Data backbone trunks.The cable is well protected by a bundle of strong steel or aluminum conductors.Wherever the towers have ground wires the new cable can be laid under live conditions i.e. power need not be switched off.OPGW provides Power Companies an opportunity to use their towers for other purpose than power transmission.IEEE 1138
IEC
TIA/EIA
TG Advait India Pvt. Ltd. (TGA) offers varieties of products and solutions in different industries. For transmission application, we provide entire cable solution including OPGW, ADSS, OFC. We have projects experience in 132kv, 220kv, 400kv & 765kV.
| Cable Type Specification | Name | Number | Material Dia |
|---|---|---|---|
| OPGW - IN (L_AL Tube) - IS 24 (M73 / R93-40) | |||
| Cable Core | FRP Wire | 1 | 5.20MM |
| Loose Tube PBT / Filler | '4/0 | ||
| Alluminium Tube | diameter | 6.80MM | |
| Layer 1 | 20.3% AS Wire | 11 | 2.60MM |
| AA (LHA2) Wire | 0 | ||
| Cable Type Specification | Name | Number | Material Dia |
|---|---|---|---|
| OPGW - IN (L_AL Tube) - IS 24 (M66 / R72-40) | |||
| Cable Core | FRP Wire | 1 | 5.20MM |
| Loose Tube PBT / Filler | 4/0 | ||
| Alluminium Tube | diameter | 6.90MM | |
|
Layer 1 |
20.3% AS Wire | 11 | 2.30MM |
| AA (LHA2) Wire | 1 | ||
| SR. NO. | Item | Unit | Technical Data Value |
|---|---|---|---|
| 1 | Type | / | OPGW - IN (L_AL Tube) - IS 24 (M73 / R93-40) |
| 2 | Optic Fiber | Nos. | 24 |
| 3 | Fiber Type | G.652 | |
| 4 | Diameter | MM | 12 |
| 5 | Cross Section | mm2 | 73.48 |
| 6 | Weight Per km Length | Kg / Km | 455 |
| 7 | UTS | KN | 92.9 |
| 8 | 20° C DC Resistance | Ώ/km | 0.84 Ώ/km |
| 9 | Short - Circuit Current Capacity (20° C ~ 200° C, 1s) | kA2s | 39.9 |
| SR. NO. | Item | Unit | Technical Data Value |
|---|---|---|---|
| 1 | Type | / | OPGW - IN (L_AL Tube) - IS 24 (M66 / R72-40) |
| 2 | Optic Fiber | Nos. | 24 |
| 3 | Fiber Type | G.652 | |
| 4 | Diameter | MM | 11.5 |
| 5 | Cross Section | mm2 | 66.01 |
| 6 | Weight Per km Length | Kg / Km | 372 |
| 7 | UTS | KN | 72 |
| 8 | 20° C DC Resistance | Ώ/km | 0.84 Ώ/km |
| 9 | Short - Circuit Current Capacity (20° C ~ 200° C, 1s) | kA2s | 39.94 |
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