Fire detection for industrial sites: specifying the system, not the detector
Detection is a system with a design behind it. Buying detectors by the box is how a site ends up with coverage it cannot prove.
Fire detection is quoted separately from suppression for a good reason: it is a designed system rather than a list of parts. A site buying detectors by quantity usually ends up with a count that satisfies a budget and a layout nobody can defend at inspection.
Start with the building and the risk
What decides a detection specification is the building and what is in it. Ceiling height changes the detector type. A high-bay warehouse is not a factory floor is not an office block. The material stored decides whether smoke, heat or flame detection is appropriate, and in some industrial settings the answer is more than one. Send a layout with ceiling heights and a description of what is stored where, and the system can be specified against it.
The questions that change the quotation
- Conventional or addressable. On a large site addressable costs more and saves its difference the first time a fault has to be found.
- Is it monitored, and by whom? A system that alarms locally and one that signals to a monitoring centre are different installations.
- Does it have to actuate anything? Where detection triggers suppression, shutters or plant shutdown, the interface is part of the design rather than an addition.
- Who commissions it? This is the question most often left unasked, and the one that decides whether the system is usable on handover.
Buying a system from China
For this division the supplier test is whether they will engage with the layout. A supplier who quotes against a device count without asking about ceiling heights has quoted a price, not a system. Ask for:
- A device schedule against your layout, with types and positions.
- Confirmation of what standard the design follows.
- Cable and containment requirements, so the installation can be planned.
- Clarity on what is supplied and what is installed locally.
Usually bought with
Detection is normally procured alongside fire fighting and suppression equipment, and on industrial contracts with site safety equipment. Where the site has its own generation, the detection system's supply arrangements should be settled against it - see power generation.
Send a layout with ceiling heights and what is stored. Request a quotation, or see the fire detection range.