Common Mistakes in Electrical Installation

Powerlineer — Professional electrical installation and maintenance solutions in Sakarya Serdivan

Electrical installation is one of the most critical technical systems of a building. However, many malfunctions are caused by minor errors made during assembly or maintenance. As Powerlineer, we have adopted the principle of detecting installation errors in advance and establishing safe systems.

⚡ 1. Lack of Grounding or Improper Application

It is one of the most serious security errors. If grounding is not done, leakage current occurs in the devices and the risk of shock increases. Sensitive electronic devices may also be damaged.

The truth: There should be a grounding line in all sockets and panels, and measurements should be made regularly.

🔌 2. Wrong Cable Cross Section Selection

If the cross-section of the cable used does not meet the current load, there is a risk of heating, insulation melting and fire. This error is especially common in high current devices (air conditioners, ovens, motors).

The truth is: Amperage appropriate for the circuit should be calculated and the cable should be selected according to TSE standards.

💡 3. Phase-Neutral Confusion

Phase-neutral error may occur in incorrectly connected sockets. This causes device malfunctions and short circuits.

The truth: After installation, the direction of each socket must be checked with a control pen or test device.

🧯 4. Incorrect Selection of Insurance Values

A fuse with a very low value blows frequently, and a fuse with a high value does not do its job of protection. This increases the risk of fire.

Socket circuits: 16A
Lighting circuits: 10A
Air conditioning / engine circuits: 20–25A

🧰 5. Leaving Cable Splices Without Insulation

It is one of the most dangerous mistakes in electrical installation. Exposed joints will cause a short circuit when they come into contact with moisture.

Correct: Joint points should be insulated with insulation tape or heat shrink tubing.

📦 6. Irregular Wiring in the Panel

Messy panel layout creates maintenance difficulties and makes it difficult to detect errors. Additionally, loose connections can cause overheating.

The truth: Cables should pass over the DIN rail, each line should be labeled and cable channels should be used.

🚫 7. Lack of Residual Current Relay (RCD)

Some installations still do not have a leakage current relay. This device prevents both collisions and fires. Its deficiency creates a serious security vulnerability.

Fact: All new installations must have an RCD with at least 30mA sensitivity.

📋 8. Error in Project Planning

If proper planning is not made before application, device additions and load increases in the future will strain the system.

The truth: Every installation should be calculated and documented by expert engineers like Powerlineer.

📍 Safe Installations with Powerlineer

Powerlineer, installation inspection throughout Serdivan and Sakarya, It offers arrangement of panels and new system planning services. All checks are made with thermal cameras and insulation test devices.