How We Uncovered Hidden Electrical Hazards in Petaling Jaya

The Background

Mr. Lim contacted us about his 25-year-old double-storey terrace house in Petaling Jaya. He had been living there for over two decades, but recently started noticing something worrying - the circuit breakers were tripping randomly, sometimes in the middle of the night.

With two young children at home, Mr. Lim was concerned about electrical safety. He had already called two other electricians who simply reset the breaker and left. But the problem kept coming back. That's when he decided to call Prime Electrician for a proper inspection.

The Problem

During our initial phone conversation, Mr. Lim described the symptoms:

• Circuit breakers tripping 2-3 times per week
• A slight burning smell near one of the power outlets
• Some lights flickering occasionally
• The main switch felt warm to the touch

Our Investigation

We arrived at Mr. Lim's house the next morning. Our senior electrician, Ahmad, began a systematic inspection of the entire electrical system.

DB Board Inspection: The first thing we noticed was the condition of the distribution board (DB). It was the original installation from 25 years ago. The wiring inside was cluttered, some connections had turned dark (a sign of overheating), and the breakers were outdated fuse-type units rather than modern MCBs.

Wiring Check: Using a thermal imaging camera, we scanned the walls near power outlets. We found one hotspot behind the wall in the living room - exactly where Mr. Lim had smelled burning. This indicated a loose or damaged connection inside the wall.

Load Analysis: We measured the electrical load on each circuit. The kitchen circuit was severely overloaded - the family had added a large refrigerator, microwave, and rice cooker over the years, all on one circuit designed for much lighter loads.

What We Found

Our comprehensive inspection revealed multiple issues:

1. Overloaded kitchen circuit - Running at 150% of safe capacity
2. Loose wire connection - Behind living room wall, causing arcing and heat
3. Corroded DB board connections - 25 years of humidity had taken its toll
4. Outdated fuse box - No RCCB protection for the family
5. Deteriorating rubber insulation - On several older wires

The Solution

We presented Mr. Lim with a detailed report and our recommendations. Given the age of the house and the multiple issues found, we recommended a phased approach:

Immediate Actions:

• Replaced the damaged wiring section behind the living room wall
• Upgraded the DB board to a modern unit with proper MCBs and RCCB
• Added a dedicated circuit for the kitchen high-power appliances
• Tightened all connections and replaced corroded terminals

For Future Consideration:

• Complete rewiring of the ground floor (recommended within 2-3 years)
• Installation of surge protection
• Upgrade of the main incoming cable

The Outcome

The work was completed over two days. We made sure to minimize disruption to the family's daily routine, working room by room and ensuring power was restored each evening.

After the upgrade, Mr. Lim reported that the circuit breakers stopped tripping completely. The new RCCB provides protection against electric shock - essential with young children in the house. The kitchen can now handle all appliances without any issues.