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Most domestic jobs need a 20A four-terminal junction box; heavier circuits need 30A. The rating comes from the circuit, not the cable count — and a box you cannot reach...
Jujhar Bhambra |
An access control system controls who opens which door, when. The lock choice is the easy part — getting people back out in a fire is what separates a compliant...
Jujhar Bhambra |
A dusk to dawn light works on a photocell: it senses daylight and stays on all night. A PIR light senses movement and stays on for a few minutes. They...
Jujhar Bhambra |
A patch panel is the fixed termination point for your structured cabling. Get the port count and rack space right and a cabinet stays workable for a decade. Get it...
Jujhar Bhambra |
A heat detector responds to temperature, not smoke — which is why it belongs in kitchens, plant rooms and anywhere steam or fumes are normal. The choice is between rate-of-rise...
Jujhar Bhambra |
A commercial fire alarm system is designed to BS 5839-1, built from EN54-certified parts and specified by category. Here is how the parts fit together — and the one compatibility...
Jujhar Bhambra |
A video intercom lets you see and speak to whoever is at the door before you open it. Modern systems are IP and PoE — one cable for power and...
Jujhar Bhambra |
A comms cabinet houses your patch panels, switches and recorders in a standard 19-inch rack. Height in U is the easy decision. Depth is the one that catches people out...
Jujhar Bhambra |
An ANPR camera reads number plates and turns them into text your system can act on. It is not a normal CCTV camera with clever software bolted on — and...
Jujhar Bhambra |