A recent EAC Fire & Security project involved upgrading the door-entry intercom for a block of converted flats in Salisbury. The low-voltage wiring had already been run by another contractor, so our certified engineers focused on completing the system setup. We installed a dedicated fused spur (an isolated, fused power feed) to supply the door-entry panel safely. All intercom cables were neatly dressed into a lockable junction box, then terminated and clearly labelled at each end. The main control panel was mounted inside a secure steel cabinet to prevent tampering – as recommended by industry guidelines – and four indoor handsets (one per flat) were fitted and commissioned. This comprehensive work ensured the entire system is tidy, reliable and ready to use.
Key Installation Tasks:
- Fused spur installation: Provided a dedicated, fused power feed for the door-entry system.
- Cable management: Dressed and fixed all wiring in the junction box to keep cables organised and safe.
- Cable termination & labelling: Terminated every cable correctly and labelled each connection for easy identification and maintenance.
- Control panel setup: Mounted the entry control panel inside a lockable steel enclosure (per security best practices) and connected all system components.
- Handset installation: Fitted and configured four apartment handsets (audio intercom units), giving each flat its own internal phone to communicate with the entrance panel.
Each of these steps – though they may sound small – is critical. For example, the fused spur lets the system be safely isolated and complies with UK wiring regulations. Neat cable dressing and labelling prevent loose wires and confusion, so the system runs reliably and any future work is simple. Housing the control equipment in a lockable cabinet protects the electronics and helps to meet insurance and safety requirements.
Compliance with Standards and Safety Guidelines
Proper wiring and installation are vital for both safety and performance. All door-entry systems must comply with UK electrical standards (BS 7671) and related security-system codes. For instance, the door-entry manufacturer’s manual explicitly states that “all connections to mains voltages must be made to the current national standards (I.E.E., wiring regulations for the UK)” and that an isolating fused spur should be fitted. By following these regulations, our work ensures safe, code-compliant power distribution and earthing. This also helps avoid faults or nuisance trips: poorly wired intercoms can fail to operate or even become safety hazards.
Beyond electrical safety, there are guidelines on how many entry units a multi-occupancy building should have. The UK Police’s Secured by Design guidance, for example, recommends that any block of 4–10 flats be equipped with an intercom handset for each flat. In other words, Electronic access control with an entry phone to each flat is required for four to ten units. By installing four handsets in the Salisbury block, we fully meet this recommendation. Each resident can now verify visitors and unlock the door remotely, which greatly enhances security and convenience. (For larger blocks, even video entryphones are advised.)
Why Professional Installation Matters
Clients upgrading or installing door-entry systems should know that DIY or sloppy installations often cause problems down the line. An amateur job can lead to intermittent faults, phone interference, or failure of the system altogether. In contrast, our trained technicians ensure every connection is solid, every cable the right type, and every component correctly rated. We strictly follow manufacturer guidelines and British Standards, such as BS 7671 (wiring regulations) and BS EN 50133 (access control standards). This not only guarantees reliability today but also preserves warranties on the equipment.
A professional setup also means peace of mind. For example, our fused spur installation protects against overload and makes maintenance safe. Clear labelling of cables means that if future upgrades or servicing are needed, our engineers (or yours) can work quickly without guessing which wire does what. In short, a well-executed install avoids hidden faults, reduces electrical noise in the intercom audio, and ensures the system can be easily expanded or modified. When life safety or security is concerned, cutting corners is not an option – adherence to recognised standards and using qualified electricians is essential.
Trusted Security Specialists
EAC Fire & Security are specialists in residential and commercial security systems across the Salisbury area and beyond. We install and maintain everything from fire alarms and intruder alarms to access control and door-entry systems Customers choose us because of our expertise and attention to detail. In this latest project, our access-control team demonstrated precisely why: the end result was a reliable, fully commissioned intercom system that meets all current guidelines.
If you’re a homeowner or property manager considering a door-entry upgrade, or you simply want to check that your system complies with current safety standards, get in touch with EAC Fire & Security. Our specialists will ensure your installation is professional and your building is secure. Learn more about our access control and intercom services or contact us for a free consultation.
