Overhead Line Equipments: High-Voltage Transmission & Railway OHE Solutions
As a leading manufacturer of Overhead Line Equipments, we provide precision-engineered hardware designed to support the mechanical and electrical integrity of power grids and railway networks. Our product range is developed to withstand the diverse climatic conditions of India—from high-salinity coastal zones to extreme temperature fluctuations in the northern plains.
We specialize in ISO 9001:2015 certified solutions that comply with IS 2486, IEC 61284, and RDSO (Research Designs and Standards Organisation) technical schedules.
Classified Catalog of Overhead Line Equipments
1. Railway Traction Equipments (25kV OHE)
Designed for the Indian Railways’ mission for 100% electrification.
- Cantilever Assemblies: Forged steel assemblies for supporting contact and catenary wires.
- Steady Arms & Register Arms: Precision-balanced fittings for maintaining wire alignment.
- Traction Mast Fittings: Heavy-duty clamps and base plates for OHE mast support.
2. Transmission Line Equipments (11kV to 765kV)
- Insulator String Hardware: Ball and socket fittings, clevis-tongue sets, and yoke plates.
- Vibration Dampers: Stockbridge dampers with 4-resonance frequency to mitigate Aeolian vibration.
- Arcing Horns & Corona Rings: Used for electrical stress control on EHV lines above 220kV.
3. Protection & Fastening Gear
- Hot-Dip Galvanized Fasteners: Grade 8.8 and 10.9 high-tensile bolts.
- PG Clamps & Connector Fittings: Ensuring high-conductivity electrical connections.
- Stay Wire Sets: Anchoring hardware for pole and mast stability.
Technical Specifications & Performance Standards
| Equipment Type | Material | Standard Compliance |
|---|---|---|
| OHE Fittings | Malleable Iron / Forged Steel | RDSO ETI/OHE/18 |
| OHL Hardware | Aluminium Alloy / Forged Steel | IS 2486 / IS 2121 |
| Galvanization | Hot-Dip Zinc Coating | IS 4759 (Minimum 610 g/m²) |
| Quality Control | Type Tested | CPRI / NABL Accredited |
Frequently Asked Questions (FAQ)
What is the difference between OHL and OHE equipments?
Overhead Line (OHL) generally refers to power transmission systems, while Overhead Equipment (OHE) specifically refers to railway traction electrification systems.
Are your overhead line equipments RDSO approved?
Yes, our railway electrification products are manufactured strictly as per RDSO specifications for 25kV AC traction.
What is the breaking strength of your tension equipments?
Our equipments are designed for Ultimate Tensile Strength (UTS) ranging from 45 kN to 160 kN, depending on voltage level and conductor class.
How do you ensure corrosion resistance in coastal areas?
We use heavy-duty Hot-Dip Galvanization with a minimum coating thickness of 86 microns, ensuring a service life of over 30 years in saline environments.
What materials are used for 400kV and 765kV fittings?
High-strength forged steel is used for mechanical load-bearing components, along with high-grade aluminum alloys to reduce magnetic losses.
Request a Technical Datasheet or Bulk Quote Today
Contact our team to receive detailed technical datasheets or a customized quotation for your overhead line or railway electrification project.