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BS 5839-1

Fire Alarm Design Certificate App (BS 5839-1)

Fill it in on site, sign on screen, and send a professional FA Design PDF before you leave the job.

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Need a FA Design for your own property? It's issued by the tradesperson who does the work — TradePlanr is the app they use.

BS 5839-1 defines a set of model certificates for a fire detection and alarm system, issued at each stage of its life. The design certificate is the first — it confirms the system has been designed to meet the recommendations of BS 5839-1 for the category of system agreed with the client.

TradePlanr lets you record the design on site or in the office: the control panel, system category and type, the areas and zones covered, the cause and effect, the sources of supply and standby autonomy, and any variations from the standard.

You sign the design declaration on screen and issue a branded PDF that forms part of the documentation handed over with the system.

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What it covers

  • Control panel, system category (L1–L5, P1, P2, M) and system type
  • Areas and zones covered, and any areas excluded with reasons
  • A summary of the cause and effect / output matrix
  • Sources of supply and standby autonomy
  • False-alarm mitigation measures
  • The design standard and any variations from BS 5839-1

When it's required

A design certificate should be issued for every new fire detection and alarm system, and after a significant redesign, to record that the design meets BS 5839-1 for the specified category.

It is one of the four core BS 5839-1 certificates — design, installation, commissioning and acceptance — that together document a compliant system.

How to issue it in TradePlanr

  1. 1

    Record the system

    Add the control panel, category, type of system and the premises it protects.

  2. 2

    Describe the design

    Set the areas and zones covered, the cause and effect, supplies and standby autonomy.

  3. 3

    Note variations

    Record the design standard and any variations from BS 5839-1 agreed with the client.

  4. 4

    Sign and issue

    Sign the design declaration on screen and produce a branded PDF for the documentation pack.

Issue this certificate from your phone or the web

TradePlanr generates this and 79 other gas, electrical, oil, plumbing and renewables certificates as proper PDFs — filled on site, signed on screen and stored against the job. Works even with no signal. Free to start.

Frequently asked questions

What are the BS 5839-1 model certificates?

BS 5839-1 sets out certificates for design, installation, commissioning and acceptance of a fire alarm system, plus certificates for modification and verification. Together they document that the system is compliant.

What does the system category mean?

Categories describe the purpose and coverage of the system — for example L1 to L5 for life protection and P1/P2 for property protection, with M for manual systems. The design certificate records the category the system is designed to.

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