How to Wire a CCU for Power and Cooker Circuits

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 Wiring a Consumer Control Unit (CCU) is one of the most crucial steps in any domestic or commercial electrical installation. A well-wired CCU ensures that all loads are safely protected and separated for easy management and fault detection. In this guide, we’ll walk through how to wire a CCU to support both power sockets and a dedicated cooker circuit. Materials and Tools Required - Consumer Control Unit (double pole) - Miniature Circuit Breakers (MCBs):   - 1 × 32A for cooker   - 1 × 20A for power sockets   - 1 × 63A DP Main Switch - 6mm² cable for cooker - 2.5mm² cable for socket circuit - 10mm² Earth wire (if TT system) - Screwdriver set - Wire stripper - Test meter - PVC conduit or trunking - Proper earthing and bonding conductors Step-by-Step Wiring Process Isolate the Supply Before doing anything, isolate the mains supply to ensure safety. Confirm using a voltage tester that the CCU is not live. Mount the CCU Secure the CCU on a plywood board or wall surface u...
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How to Replace a Fluorescent Tube – Step-by-Step Guide

 Safety First!

Before replacing a fluorescent tube:

- Turn off the power at the light switch and the main breaker if accessible.

- Allow the tube and fixture to cool down if recently in use.

- Use a stable ladder or step stool to reach the fixture safely.

🛠️ Tools and Materials Needed:

- Replacement fluorescent tube (correct length, diameter, and wattage)

- Safety gloves and eyewear

- Ladder or step stool

- Cloth or paper towel (optional for cleaning)

🔧 Step-by-Step Fluorescent Tube Replacement Procedure

1. Turn Off Power

Switch off the light at the wall and, if possible, turn off the circuit breaker for the fixture.

2. Remove the Protective Cover (if applicable)

Some fixtures have a plastic or glass diffuser. Carefully remove it by sliding or unclipping, and set it aside.

3. Rotate the Tube to Release

Hold the tube gently with both hands. Rotate it a quarter turn (approximately 90 degrees) until the end caps align with the fixture slots.

4. Remove the Old Tube

Gently pull the tube straight out of the sockets and set it aside safely. If the tube is broken, wear gloves and handle with care to avoid glass shards.

5. Check the Sockets and Starters

Inspect the fixture’s sockets (also called tombstones) for damage or wear. Replace if necessary. If your fixture uses a starter, consider replacing it as well to ensure proper operation.

6. Install the New Tube

Align the pins on the new tube with the slots. Insert the tube into the sockets and rotate it a quarter turn until it locks into place.

7. Reattach the Protective Cover

Replace the diffuser or cover by clipping or sliding it back onto the fixture.

8. Restore Power and Test

Turn on the circuit breaker and the light switch. The new tube should light up immediately or after a brief flicker if using a starter. If the tube does not light, check the starter and ballast.

✅ Final Tips

- Always use the correct tube size (e.g., T8, T12) and wattage for your fixture.

- If you notice flickering, buzzing, or delayed starting, the ballast may need replacement.

- Dispose of old tubes properly at a recycling facility—fluorescent tubes contain small amounts of mercury.


Need Assistance with Lighting Fixtures?

📞 Contact: PrecisionElectrical Services for expert fluorescent tube replacement and maintenance.

Call/WhatsApp: 0708651559


Welcome to PrecisionElectrics, your go-to source for everything electrical and electronics! Whether you’re a homeowner looking to understand basic electrical safety, a tech enthusiast eager to explore the latest innovations, or a professional seeking expert tips, you’ve come to the right place. Our mission is to simplify complex electrical concepts, share practical solutions, and keep you updated with cutting-edge trends that power our modern world. Join us as we dive into circuits, systems, and technologies that illuminate our lives and drive progress every day.

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