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5 Things You Should Know Before Buying a Housewire

Electrical wiring is the lifeline of any residential or commercial space. It forms the backbone of every appliance, lighting system, and power outlet, silently working behind walls and ceilings to keep your home functional and secure. But unlike tiles, paint colors, or switches - housewires are often overlooked during construction or renovation, despite playing a critical role in both safety and energy efficiency.

Selecting the right housewire isn’t just about buying a coil off the shelf, it’s a long-term decision that impacts your home appliances’s durability, energy consumption, and even fire resistance. Factors like copper purity, insulation quality, wire gauge, certifications, and environmental suitability all influence how well a wire will perform under real-life conditions.


Unfortunately, many homeowners and builders focus on cost alone, risking substandard quality that could lead to overheating, voltage drops, or electrical failures. That’s why it’s essential to understand what makes a housewire truly reliable.
In this guide, we break down the five most important things you should know before purchasing housewires, so whether you're wiring a new home, upgrading an old one, or simply comparing brands, you'll make a confident, future-ready choice backed by technical insights and industry best practices.

5 Things You Should Know...

1. Copper Purity is Non-Negotiable

The conductivity of a wire begins with its core, the conductor. While copper is widely used, only high-purity, electrolytic-grade copper (99.97%) ensures optimal energy transmission. It reduces resistance, minimizes heat generation, and enhances wire longevity.
Jainson Cables manufactures housewires using superior-grade copper that meets IS 694 standards, delivering both energy efficiency and safety in every roll.

2.Insulation Determines Fire Resistance

Insulation is more than a protective coating - it’s your home’s first defense against electrical hazards. Quality insulation resists heat, moisture, and external damage.
Look for:
Flame-retardant (FR) compounds that slow down fire spread in the event of an electrical fault, making them ideal for residential buildings.
Low smoke, halogen-free materials that emit minimal toxic fumes, ensuring better visibility during emergencies. Low smoke materials are ideal for commercial complexes, while zero halogen materials are perfect for sensitive environments like schools and hospitals.

RoHS-compliant formulations that ensure insulation is free from harmful substances like lead and mercury
Jainson’s housewires use specially formulated PVC insulation that undergoes rigorous thermal and mechanical testing, ensuring long-term safety in all weather conditions.

3. Wire Size Must Match the Load

Every electrical outlet in your home is designed to carry a specific load. Using an incorrectly sized wire can cause excessive heat buildup, damage to appliances, or even pose a serious fire hazard.
Recommended Wire Sizes for HomeApplications:

  • 1.0 sq mm – Best suited for lighting circuits and low-load fixtures such as LED bulbs and tube lights. For earthing, 0.75 sq mm is ideal, while 4 sq mm is recommended for air conditioners and heavy appliances. For the main line, 6 sq mm ensures maximum safety and efficiency
    1.5 sq mm – Commonly used for ceiling fans, wall sockets, and mixed-load circuits, offering balanced performance for medium-duty usage.
    2.5 sq mm – Ideal for high-power appliances like, geysers, refrigerators, and other equipment with substantial load requirements.
    Jainson Cables offers a complete range of wire gauges, clearly rated for current-carrying capacity, so professionals and homeowners can choose precisely.

4. Look for Recognized Certifications

Certifications aren’t just symbols but they’re proof that the product has passed quality and safety benchmarks.

  • Key certifications include:

    • ISI mark (IS 694) – domestic safety
    • CE – international safety and export readiness
    • RoHS – environmental compliance (no lead or hazardous chemicals), with lead-free insulation for added safety and sustainability.

    Jainson’s quality assurance process includes spark testing, insulation breakdown testing, and mechanical strength checks, ensuring that each coil meets or exceeds industry expectations.

5. Match the Wire to Its Environment

Not all housewires are made for the same applications. The layout and environment of your home dictate the necessary insulation type and flexibility for optimal wiring performance.


  • Use Case Examples:

     

Large homes: Wires with minimal voltage drop over long runs

Smart homes/solar installations: Compatible with automation systems and energy-efficient setups

 

Jainson offers environment-specific solutions to ensure your wiring investment supports not just today’s needs, but also tomorrow’s innovations.


Final Thoughts


Electrical wires may be hidden from sight, but their importance is front and center when it comes to safety, performance, and long-term reliability.
Selecting the right housewire isn’t just a product choice but it’s a critical investment in your home’s electrical integrity. From conductor purity and insulation type to correct sizing and third-party certifications, every factor plays a role in how efficiently and safely power flows through your living space.


At Jainson Cables India Pvt. Ltd., we understand that trust is built not just on product claims, but on proven performance. With over 35 years of manufacturing excellence, we have engineered housewires that consistently meet and exceed Indian and global standards - including IS 694, RoHS, and CE certifications.

Our cables are:

Crafted with 99.97% pure electrolytic copper

Insulated with flame-retardant, low-smoke, halogen-free compounds

Tested rigorously in NABL-accredited labs

Designed for optimal current-carrying efficiency and safety

 

With a global footprint spanning over 80 countries, Jainson Cables delivers high-performance wiring solutions engineered for residential, commercial, solar, and industrial environments. Whether you're building a home or powering large-scale infrastructure, our cables are built for lasting reliability even where they remain out of sight.


Ready to choose the right housewire for your home?


Explore Jainson’s certified range of flame-retardant, high-conductivity housewires - built for modern Indian conditions.

Contact our experts to get personalized guidance and specifications tailored to your project.