Fire Risks Associated with Modifying Vehicle Electrical Wiring

time
3 mins read
feature image

Did you know? A vehicle's wiring is like the human nervous system. A small mistake here can cause the entire vehicle to turn into ash in seconds. Nowadays, most vehicle fires are not caused by manufacturing defects, but due to improper wiring modifications we make. Please remember the following advice well.

Haphazard Installation of Accessories

We all love installing new LED lights, big Subwoofers, or a new Android player in our vehicles. However, every device needs to be powered by a wire suitable for it. If you connect a device that draws a higher current (Amperage) than the original wire can handle, that wire will heat up and start melting from the inside. That excessive heat is what triggers a fire in the vehicle.

Improper Wire Cutting and Splicing

Improper wire splicing

Some mechanics cut or strip the vehicle's original wires to add new wires when installing accessories. This is very dangerous. "Loose Connections" are highly likely to occur in such places. When a connection is loose, small sparks occur (Sparking). Also, the ordinary black insulation tape used to cover that wire peels off over time due to heat. Then, as soon as the exposed wire touches the vehicle body (Ground), the entire wiring system catches fire.

Neglecting the Fuse System

Burnt car fuse

A Fuse is the guardian protecting the vehicle's wiring. If a wire shorts, the relevant fuse must blow first to disconnect the power. However, some people, instead of replacing a blown fuse with one of the correct size, put a piece of copper wire and bridge it ("Direct"). This is a fatal mistake. Then, even if a short circuit occurs, the electricity does not disconnect, the wire continues to heat up, turns red, and the plastic covers start burning.

Wire Quality and Gauge

Wire gauge differences

When adding a new wire, you must pay attention to its thickness (Gauge). For example, to carry electricity to the vehicle's headlights, a thick wire is needed. If a thin wire is used instead, it will melt as it cannot withstand that voltage and current. Also, the wire used must be "Heat resistant." Ordinary wires cannot withstand the heat near the engine.

Safety Advice: If you are installing any new electrical equipment in the vehicle, make sure to do it through a Relay and a separate Fuse. Never allow the original wiring wires to be cut; use "Socket to Socket" compatible devices instead. Do not turn a vehicle worth millions into ash just to save a thousand or two rupees.

Do you feel wires heating up or smell something burning due to a newly installed device? If there is such a sign, it should be checked immediately.

Nisaga Sandaru

Written by

Nisaga Sandaru

A versatile and highly experienced professional, currently an Automobile undergraduate at the University of Jaffna, with strong technical expertise grounded in hands-on work as a technician with SriLankan Airlines Ground Support Equipment (GSE). Holding an Automobile NVQ Level 3 qualification, along with specialized certifications in Vehicle ECU Programming and Diagnosis, and extensive experience in arc welding and vehicle body painting, and well equipped to handle complex automotive, diagnostic, and fabrication-related tasks with a high level of competence.

Similar News

  • ⁠Customization & Modifications

    The Legendary RAYS Engineering TE37 Wheel

    time
    3 mins read
  • ⁠Customization & Modifications

    Exploring Japan's Famous 'Liberty Walk' (LB Performance)

    time
    4 mins read
  • ⁠Customization & Modifications

    How Changing Motorcycle Sprocket Size Affects Top Speed and Pickup

    time
    3 mins read
  • ⁠Customization & Modifications

    The Impact of Changing a Bike Silencer on Engine Life and Fuel Efficiency

    time
    3 mins read
  • ⁠Customization & Modifications

    Fire Risks Associated with Modifying Vehicle Electrical Wiring

    time
    3 mins read
  • ⁠Customization & Modifications

    Things About Car Light Modifications

    time
    4 mins read
  • ⁠Customization & Modifications

    Easy car modifications

    time
    3 mins read
  • ⁠Customization & Modifications

    Most Expensive Car Modifications

    time
    3 mins read
  • ⁠Customization & Modifications

    Easy Car Modifications You Can Do at Home

    time
    4 mins read
  • ⁠Customization & Modifications

    Aftermarket Modifications to Improve Your Car's Safety

    time
    3 mins read

Latest Car Reviews

  • Mazda 3 Sedan 1.5L 2025

    Sedan

    Rs 19.5M - 21.5M

  • Toyota Alphard Hybrid 2025

    MPV

    Rs 65M - 80M

  • Honda City RS 1.0 VTEC Turbo CVT 2025

    Sedan

    Rs 14.7M - 15.3M

  • Hyundai Exter SX Smart AMT 2025

    SUV

    Rs 10M - 11.5M

  • Kia Sportage Hybrid 1.6T HEV 2026

    SUV

    Rs 26.5M - 36.5M

  • Kia EV5 Standard Range 2026

    SUV

    Rs 26M - 32M

  • BYD Racco 300Premium 2026

    Kei

    Rs 11.5M - 11.5M

  • Toyota RAV4 2.0L Petrol 2026

    SUV

    Rs 37M - 44M

  • Toyota RAV4 2.5L Petrol 2026

    SUV

    Rs 48M - 50M

  • Toyota RAV4 2.5 Hybrid AWD 2026

    Compact SUV

    Rs 420M - 50M

  • Hyundai i20 Sportz (O) IVT 2025

    Hatchback

    Rs 10.2M - 12.9M

  • Toyota Glanza V AMT 2025

    Hatchback

    Rs 10.5M - 12.1M

Latest Bike Reviews

  • Yamaha FZ-S V4 2026

    Motorcycles

    Rs 1.2M - 1.5M

  • TVS NTorq 150 TFT 2026

    Scooters

    Rs 1.1M - 1.2M

  • Suzuki Burgman Street 125 Ride Connect TFT Edition 2026

    Scooters

    Rs 1.2M - 1.3M

  • Honda PCX160 ABS 2026

    Scooters

    Rs 1.7M - 1.9M

  • Yamaha XSR155 2026

    Motorcycles

    Rs 1.5M - 1.8M

  • Honda CB350 DLX Pro 2025

    Motorcycles

    Rs 2.5M - 2.8M

  • Royal Enfield Classic 350 2025

    Motorcycles

    Rs 2.4M - 2.8M

  • Kapla ZL9 2026

    eBikes

    Rs 387K - 389K

  • Yamaha Ray ZR 125 Fi Hybrid 2025

    Scooters

    Rs 700K - 830K

  • Honda SP 125 2025

    Motorcycles

    Rs 650K - 780K

  • Hero Splendor Plus 2025

    Motorcycles

    Rs 600K - 730K

  • Bajaj Platina 100 2025

    Motorcycles

    Rs 600K - 800K

hero

Post your car or bike ad on ikman in 2 mins!