A fused spur is a vital component in electrical installations, providing a safe and controlled way to extend power to appliances or additional circuits. Fitting a fused spur from an existing fused spur can be a practical solution for adding power points in homes or workplaces, but it requires careful planning, adherence to safety standards, and technical know-how. In this comprehensive guide, RCD Electrical, your trusted North London electricians, walk you through the process, safety considerations, and best practices to ensure a secure installation.
What Is a Fused Spur?
A fused spur is an electrical outlet connected to a circuit via a fuse, which protects the wiring and appliances from overloading. It’s commonly used to power fixed appliances like boilers, extractors, or lighting circuits. Extending a fused spur from an existing one allows you to add another power point without directly tapping into the main ring circuit, maintaining safety and compliance with UK wiring regulations (BS 7671).
Before attempting to fit a fused spur, it’s crucial to understand the electrical load, cable ratings, and regulatory requirements. While competent DIY enthusiasts may tackle this task, we strongly recommend consulting a qualified electrician to ensure safety and compliance.
Tools and Materials Needed
To fit a fused spur from an existing fused spur, gather the following:
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Fused connection unit (FCU): Choose a 13A fused spur with the correct fuse rating for your appliance.
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Electrical cable: Use 2.5mm² twin and earth cable for standard 13A loads.
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Screwdrivers: Insulated flathead and Phillips screwdrivers.
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Wire strippers and cutters**: For preparing cables.
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Voltage tester: To ensure the circuit is isolated.
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Mounting box: Surface or flush, depending on your installation.
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Cable clips or conduit: For securing cables.
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PPE: Insulated gloves and safety goggles.
Always ensure your tools are rated for electrical work to prevent accidents.
Step-by-Step Guide to Fitting a Fused Spur
1. Turn Off the Power
Safety is paramount. Switch off the main power at the consumer unit and verify the circuit is dead using a voltage tester. Lock the consumer unit if possible to prevent accidental re-energisation.
2. Assess the Existing Fused Spur
Check the existing fused spur’s fuse rating and load capacity. Ensure it can handle the additional load of the new spur. For example, a 13A fused spur can typically support one additional spur, but calculations are necessary to avoid overloading. If in doubt, consult an electrician.
3. Plan the Cable Route
Map out the path for the new cable from the existing fused spur to the new fused spur location. Ensure the route avoids hazards like water pipes or excessive heat sources. Use cable clips or conduit to secure the cable and comply with regulations.
4. Install the Mounting Box
Fix the mounting box for the new fused spur at the desired location. For flush boxes, cut into the wall and secure with screws. For surface boxes, screw directly onto the wall, ensuring a firm fit.
5. Run the Cable
Run the 2.5mm² twin and earth cable from the existing fused spur to the new mounting box. Strip the cable ends, exposing the live (brown), neutral (blue), and earth (green/yellow) wires. Ensure the cable is long enough to connect without strain.
6. Connect the Existing Fused Spur
Open the existing fused spur’s faceplate. Connect the new cable’s wires to the output terminals (load side) of the existing spur:
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Brown (live) to the L terminal.
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Blue (neutral) to the N terminal.
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Green/yellow (earth) to the E terminal.
Secure the connections tightly and ensure no bare wires are exposed.
7. Wire the New Fused Spur
At the new fused spur, connect the cable to the input terminals (supply side):
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Brown to L.
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Blue to N.
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Green/yellow to E.
Insert the correct fuse (e.g., 3A for lighting, 13A for heavy appliances) into the fused spur unit. Secure the faceplate to the mounting box.
8. Test the Installation
Double-check all connections. Restore power at the consumer unit and use a voltage tester to confirm the new spur is receiving power. Test the connected appliance to ensure functionality : ELECTRICAL TESTING AND INSPECTION IN NORTH LONDON
9. Certify the Work
Under UK regulations, electrical work like adding a fused spur is notifiable under Part P of the Building Regulations. A qualified electrician must certify the installation to ensure compliance. Failure to do so may invalidate insurance or lead to penalties.
Safety Considerations
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Isolation: Always isolate the circuit before working.
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Load Capacity: Verify the existing spur can handle the additional load.
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Cable Protection: Use appropriate cable management to prevent damage.
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Regulations: Adhere to BS 7671 and Part P requirements.
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Professional Help: If unsure, hire a certified electrician to avoid risks.
Why Choose a Professional?
While fitting a fused spur is manageable for those with electrical knowledge, mistakes can lead to fire hazards, shocks, or non-compliance. At RCD Electrical, our NICEIC-registered team ensures every installation meets the highest safety standards. We provide peace of mind, thorough testing, and certification for all electrical work in North London.
Conclusion
Fitting a fused spur from an existing fused spur is a practical way to extend power safely, but it demands precision and adherence to regulations. By following this guide and prioritising safety, you can achieve a reliable installation. For guaranteed results, trust RCD Electrical to handle your electrical needs with expertise and care.
Contact RCD Electrical Today
For safe, compliant, and professional electrical installations in North London, trust RCD Electrical. Our expert team is ready to assist with all your electrical needs, from fused spurs to full rewires. Contact us today for a free quote and experience top-tier service from your local electricians. Visit our website or call us to book an appointment!
Call now for a free consultation: 02034882928
ELECTRICAL INSTALLATION AND MAINTENANCE IN NORTH LONDON