RIYO ELECTRICALS LIMITED
रीयो इलेक्ट्रिकल्स लिमिटेड
RIYO ELECTRICALS LIMITED | रीयो इलेक्ट्रिकल्स लिमिटेड
HT / LT Cables & Covered / Bare Conductors Supply | Riyo Electricals Limited – Engineering Reliable Power Networks
With respect to today's power networks, cables and conductors are ideal for taking electricity from its generation points to the end-users. So, a well-designed and installed cabling system is required, even if there is the most advanced infrastructure in the electric world that is not working properly. These elements are required for industries, utilities and urban infrastructure from high-tension (HT) transmission lines that carry bulk electricity, to low-tension (LT) systems that carry power at the level of their consumers, and from instrumentation cables for automated processes to wiring for industrial control.
At Riyo Electricals Limited, we render services relating to the supply, installation, testing and commissioning of a variety of cables and conductors. We offer solutions for HT and LT power cables, armoured cables, covered and bare conductors as well as overhead and underground transmission lines. Our strong commitment towards safety, reliability and meeting IEC/IS standards helps us deliver end to end cabling solutions to industries, commercial hubs, smart cities, and large-scale infrastructure projects across India.
High Tension (HT) and Low Tension (LT) Cables
What Are HT & LT Cables?
HT Cables are best suited for transmission of high voltage electricity over long distances. They range from 3.3 kV to 33 kV or above. These cables are mandatory for bulk power transmission from power stations to substations, industries and large commercial establishments. HT cables are mainly used in the power grids of utilities, renewable energy projects and industrial complexes.
LT Cables windings of up to 1.1 kV typically are used as power distribution within residential, commercial and industrial buildings. They supply electricity to the end-users from the substations. LT cables are used in homes, offices, hospitals, educational institutions and data centers where compared to high tension transmission networks, the voltage requirements are lower.
Our Expertise
- Supply: We provide HT and LT Cables which are supplied by OEM certified manufacturers with stringent quality standards. All materials are type-tested to guarantee industry-specific standards for reliability and performance.
- Design & Selection: Our expert team of engineers will do a detailed analysis, including load flow analysis, short circuit calculations, and fault current studies, to understand the appropriate size, material (copper or aluminium), and insulation for each installation.
- Installation: We adopt international best practices for installation of cables, whether underground or overhead, such as proper trenching, tray mounting, clamping, jointing, and earthing, for long-lasting and safe installations.
- Testing & Commissioning: We do a comprehensive testing, including insulation resistance, high-voltage withstand tests, continuity checks, and polarity tests to ensure they meet safety standards and function efficiently.
Key Advantages
- Minimal transmission losses: Our excellent HT and LT cables reduce energy losses during transmission and distribution to improve the overall efficiency.
- Fire-safe, flame-retardant, and low-smoke zero-halogen options: We have cables that are compliant with the latest fire safety requirements, ensuring that they produce minimal smoke and operate safely in the event of fire.
- Future-ready systems designed for expansion: Our cabling solutions are designed with scalability in mind, making it easier to expand systems as future demands increase.
- Improved operational safety and reliability: Our cables are engineered to withstand extreme conditions, ensuring uninterrupted power supply and minimal downtime.
Instrumentation, Control & Armoured Cables
Role in Modern Infrastructure
As factories, cities, and industries become increasingly reliant on automation and smart systems, the demand for reliable communication between machines has never been higher. This is where instrumentation and control cables come in. They are the lifelines through which correct signals are sent from sensors, controllers, SCADA systems, and other automated equipment. Unlike regular power cables, these are purpose-built to handle sensitive data without interference, making them vital for precision and reliability. In many ways, they're the invisible backbone behind the smooth operation of modern automation.
Solutions We Provide
- Instrumentation Cables: It is a multi-pair shielded cable. They are ideal for handling the transmission of data for process control systems. They provide protection against electromagnetic interference (EMI), and ensure that signals remain intact.
- Control Cables: They are used in the control of switchgear and automation systems and are used for communication between different devices in an electrical network. They are mainly used in factories, plants, and buildings, where it is needed to have centralized control over several electrical systems.
- Armoured Cables: They are ideal for mechanical protection, armoured cables. They have a layer of steel or aluminium which protects the conductors from physical damage in harsh environments. They are essential in industrial installations, outdoor use, and high traffic or extreme condition locations.
- Special Application Cables: We provide heat resistant, chemical resistant and FRLS (Flame Retardant Low Smoke) cables for industries such as oil & gas, chemical plants, data centres, etc., where cable applications are exposed to harsh chemicals, extreme temperatures or potential fire hazards.
Execution Excellence
- Correct segregation of power and control cabling to prevent electromagnetic interference (EMI) for the smooth operation of sensitive equipment.
- Termination using quality branded cable glands, lugs and ferrules for secure and reliable connections.
- Comprehensive testing like continuity checks, hi-pot tests and IR (insulation resistance) measurements to ensure the cables are performing to industry standards.
- Integration of cables with automation and SCADA systems for smart monitoring - offering real-time control and fault detection.
Overhead & Underground Power Transmission
Overhead Transmission Systems
Overhead lines are a low cost and scalable solution for carrying bulk electricity, especially for long distances. At Riyo Electricals, we have dealt with and bare conductors (like ACSR, AAC and AAAC) for overhead transmission systems.
We handle the following:
- Tower & Pole Erection with necessary hardware like insulators, cross arms, fittings for the safe suspension of conductors.
- Stringing & Sagging: We ensure that conductors are strung to the correct tension to avoid sagging and wear.
- Earthing & Lightning Protection: We ensure proper earthing systems and lightning protection to protect the transmission system and avoid possible damage caused by surges.
Benefits:
- Economical for long-distance transmission, making it suitable for rural, semi-urban, and industrial areas.
- Easy fault detection and repair, minimizing downtime.
- Scalability and flexibility in expanding the network.
Underground Cable Systems
With respect to applications where overhead systems are not necessary, our underground cabling services provide for a safe, aesthetically pleasing, and highly reliable alternative:
- Trenching & Ducting: Excavation and installation of ducts with protective covers to safely house the cables.
- Horizontal Directional Drilling (HDD): This technique is used for crossing roads, railways, rivers, and other obstacles without open excavation.
- Jointing & Termination: We use heat-shrink kits and epoxy resin joints for secure and durable connections, especially in areas with high mechanical stress.
- Post-Installation Testing: This includes tests such as partial discharge measurement, hi-pot testing, and load tests to ensure optimal cable performance.
Benefits:
- No visual clutter and improved urban aesthetics.
- Low maintenance with longer cable lifespan.
- Reduced risk of accidental contact and service interruptions.
Laying, Testing & Commissioning
Laying Expertise
At Riyo Electricals, we provide the following cable laying services:
- Open trench laying, cable tray, and Horizontal Directional Drilling (HDD) techniques to suit specific installation needs.
- Ensuring proper spacing and segregation to prevent overheating and interference.
- Providing mechanical protection through covers, tiles, and backfilling to avoid damage.
- Tagging and route mapping to ensure easy identification and maintenance.
Testing & Validation
- Pre-commissioning tests: Insulation resistance (IR), continuity, and polarity checks to ensure the system is ready to be powered up.
- High-voltage withstand tests (Hi-pot) and partial discharge measurements to assess the cable’s resilience and performance under stress.
- Thermal imaging: Used to detect hotspots and confirm that cables operate safely.
Commissioning & Support
- Gradual energization and performance validation of the system to ensure it works according to design specifications.
- Preventive maintenance services, including annual health checks, to ensure the longevity and safety of your power transmission systems.
- Rapid fault detection and rectification services in the event of emergencies.
Why Riyo Electricals Limited?
- Proven Industry Expertise: With decades of experience, we’ve provided reliable cabling solutions to utilities, industries, and infrastructure projects.
- One-Stop Solution: We offer supply, design, laying, testing, commissioning, and maintenance under one umbrella.
- Certified Quality: All materials are sourced from OEM-certified suppliers with type test and routine test certificates.
- Technology-Driven: We use the latest techniques like HDD, thermal scanning, and precision testing equipment.
- Commitment to Safety: We strictly adhere to IS, IEC, IEEE, and utility norms to ensure the highest safety standards.
Industries We Serve
- Power Generation & Distribution Utilities
- Oil & Gas Refineries & Petrochemicals
- Renewable Energy (Solar & Wind)
- Manufacturing & Heavy Industries
- Smart Cities, SEZs, and Urban Infrastructure
- Hospitals, IT Parks, and Data Centres
At Riyo Electricals Limited, we know that cables and conductors are the lifeblood of modern infrastructure. That's why we're dedicated to offering expert services in HT/LT cabling; overhead and underground systems, and instrumentation and control wiring. Our clients benefit from power distribution systems that are not only safe and efficient but are ready for the future. Whether it's a new industrial substation, extending underground feeder lines or modernizing automation plants, we combine the latest technology, comprehensive expertise and unrivaled reliability to provide solutions that encourage progress and drive growth.
Frequently Asked Questions (FAQs)
1. What are HT and LT cables, and how do they differ?
HT (High Tension) cables carry high voltage power, that usually are between 3.3kV and 33kV, to ensure long distance transmission of power and bulk power supply. LT (Low Tension) cables are for lower voltage applications (up to 1.1kV) and are used in power distribution systems for residential, commercial and industrial.
2. What materials are used in the manufacture of HT and LT cables?
HT and LT cables are typically constructed using copper or aluminium conductors, to ensure good conductivity. The cables are covered with insulation material like PVC, XLPE, or EPR to protect them from electrical faults and environmental factors.
3. What industries can benefit from your HT and LT cable solutions?
- Power generation and distribution utilities
- Oil & gas refineries
- Renewable energy projects (solar, wind)
- Manufacturing & heavy industries
- Smart cities, hospitals, IT parks, and data centers
4. How do you ensure the quality and reliability of the cables you supply?
At Riyo Electricals, we collaborate with OEM-certified manufacturers to provide high-quality HT and LT cables to meet IEC/IS standards. To ensure that the cables are appropriately sized with the best quality standards, we are not just providing the products. We conduct full load flow analysis, short circuit and fault current analysis. Before installation of course we do very thorough tests on insulation resistance, high voltage withstand, and continuity, so that everything is at perfect condition for a reliable and safe installation. Our focus is in providing solutions that you can be confident will perform consistently and efficiently.
5. Can you assist with the installation of HT and LT cables?
We provide installation services for HT and LT cables. We have our experienced engineers and technicians having expertise in taking up international best practices in trenching, tray mounting, clamping, jointing, and earthing to ensure safe and reliable installations. We have safety standards to prevent accidents, thus maintaining integrity in the process.
6. What testing is performed before energizing HT and LT cables?
- Insulation resistance testing to check for any insulation faults.
- High-voltage withstand tests (Hi-pot) to ensure the cables can handle electrical stresses.
- Continuity and polarity tests to ensure correct wiring.
- Thermal imaging to detect hotspots and ensure safe operation.
7. What are the benefits of using armoured cables in industrial settings?
Armoured cables provide additional mechanical protection in harsh environments. The steel or aluminium armouring serves to protect the cables from physical damage, thus being ideal in combination with industries where mechanical stress is high, such as manufacturing plants, oil & gas refineries and power stations. In addition, they provide protection from moisture, chemicals, and temperature variations.
8. What is the difference between covered and bare conductors?
Bare conductors are those uninsulated wires which are used for overhead transmission lines where insulation is not required, considering the environmental factors. On the other hand, Covered conductors, , are made up of an insulating layer that protects the conductor from accidental contact, environmental elements, and electrical faults. They are used in areas with dense population and in places where taking extra safety measures is mandatory.
9. How do you handle underground cabling projects?
- Trenching and ducting to safely house cables.
- Horizontal directional drilling (HDD) for installing cables under roads, railways, or water bodies.
- Jointing and termination using heat-shrink kits and epoxy resin joints to ensure secure, durable connections.
- Post-installation testing including partial discharge, hi-pot, and load tests to validate cable integrity and performance.
10. What maintenance services do you offer for HT and LT cable systems?
- Annual health checks to assess the condition of the cables.
- Preventive maintenance to identify and resolve issues before they cause downtime.
- Fault detection and rapid repair services in case of any cable damage or failure.
- Upgrades to accommodate increased load demands or changing infrastructure need.