BS5839-6:2019 and Design Requirements

BS 5839-6 Fire detection and fire alarm systems for buildings

Author -
Angus Stone
A chartered electronics engineer with over 40 years experience in Emergency Lighting and Fire Detection and Alarm systems.

Angus has been involved in developing and writing British and International Fire & Safety standards since the mid-1980s. The list of standards that he has participated in is impressive and includes BS5839-1, BS8629, EN54-18 and ISO7240-2.  Angus utilises his extensive experience to provide an authoritative perspective on the key issues that affect the Fire & Security Industry today.

Angus has been involved in developing and writing British and International Fire & Safety standards since the mid-1980s. The list of standards that he has participated in is impressive and includes BS5839-1, BS8629, EN54-18 and ISO7240-2.  Angus utilises his extensive experience to provide an authoritative perspective on the key issues that affect the Fire & Security Industry today.

For the purpose of specifying fire detection and alarm systems and the associated engineering design parameters, there are six grades. In this guidance, grade A and grade D are most relevant, but all six grades are described below.

Grades of Automatic Fire Detection warning systems as specified in the BS 5839-6: 2019

Grade A: a fire detection and alarm system that is designed and installed in accordance with the recommendations of BS 5839-1:2017 except clauses relating to alarm audibility, alarm warnings for the hearing-impaired, standby supplies, manual call points and radio-linked systems, which are replaced by part 6.

This comprises a system of electrically operated smoke and/or heat detectors which are linked to a control panel complying with EN 54-2. In general, the system must incorporate manual call points which should be located next to final exits, and, in larger multi-storey properties, on each landing. The alarm signal must achieve sound levels of not less than 65dB (A) in all accessible parts of the building and not less than 75dB (A) at all bed-heads when all doors are shut, to arouse sleeping persons.

Grade C: a system of fire detectors and sounders (which may be combined in the form of smoke or heat alarms) connected to a common power supply with both mains and a standby supply, with an element of central control—for example, a small dedicated fire control panel.

Grade D1: a system of one or more mains-powered smoke (or heat) alarms each with an integral tamper-proof battery standby supply. These are designed to operate in the event of mains failure and therefore could be connected to the local lighting circuit rather than an independent circuit at the dwelling’s main distribution board. There is no control panel.

Grade D2: a system of one or more mains-powered smoke (or heat) alarms each with an integral standby supply consisting of a user-replaceable battery or batteries. These are designed to operate in the event of mains failure and therefore could be connected to the local lighting circuit rather than an independent circuit at the dwelling’s main distribution board. There is no control panel.

Grade F1: a system of one or more battery-powered smoke alarms powered by a tamper-proof primary battery or batteries. These are not recommended in HMOs. In grade D and F, where more than one alarm is installed they must be interlinked.

Grade F2: a system of one or more battery-powered smoke alarms powered by a user-replaceable primary battery or batteries. These are not recommended in HMOs. In grade D and F, where more than one alarm is installed they must be interlinked.

Got a question about Fire Alarms? Need a Fire Safety Risk Assessment? Get in touch today.

For over 45 years, Fixfire® has been providing quality products, systems, and services for Life & Property Protection. Whatever your requirement, please call our Compliance Team for expert advice and a refreshingly different approach.

Freephone: 08000 891 999
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Following the recommendations of BS5839 Part 1 2017 (Fire Alarm British Standard), it is a mandatory requirement to have an up to date, clear and accurate Fire Alarm Zone Chart adjacent to your Fire Alarm Control Panel and any repeater panels you have in your premises.

The purpose of the Zone Chart is to assist persons responding to an alarm to quickly identify the specific location in the building and to help the Fire Brigade understand the building layout before they enter.

When the Fire Alarm System is installed, the building is divided into Fire Zones. Any Manual Call Point (Red Box) or Fire Detector that is fitted will trigger a particular zone when activated.

The Zone Chart shows the division of each zone area with a ‘You are Here’ arrow to identify the position of the Fire Alarm Panel. The view of the building should be orientated in relation to the Fire Alarm Panel position to minimise confusion.

What is involved in producing a Zone Chart?

STEP 1:
STEP 2:
You provide a suitable up to date drawing of your building in either:
  • Hard copy
  • PDF
  • Or preferably AutoCAD (dwg) format
Depending on the availability of installation records and the complexity of the building, we arrange a visit to identify the zone number associated with each Fire Alarm Manual Call Point and Fire Detector (for practicality this may involve two engineers).
STEP 3:
STEP 4:
Fire Alarm Zone Chart is created.
Fire Alarm Zone Chart is supplied in A4 or A3 glazed frame for installation adjacent to your Fire Alarm Panel.
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You have a legal duty of care to dispose of waste legitimately and safely via a licensed waste carrier. Failure to do so can result in prosecution, even if you have outsourced the disposal to a third party.

The Fixfire® Extinguisher Recycling Process is your reassurance that any Fire Extinguishers we remove from your premises have been disposed of in a safe and legal manner. 97% of each processed Fire Extinguisher is recycled.

Our contracted Extinguisher Recycling Unit (ERU) is a dedicated facility offering a service for the safe processing and recycling/disposal of fire extinguishers. The facility operates closely with the local Water Authority and the Environment Agency to develop safe, efficient and environmentally friendly processes, ensuring that ISO14001 certification is upheld.

Got a question about Fire Extinguisher Disposal?  Need Fire Safety Compliance advice? Get in touch today!

For over 45 years, Fixfire® has been providing quality products, systems and services for Life & Property Protection. Whatever your requirement, please call our Compliance Team for expert advice and a refreshingly different approach.

Freephone 08000 891999

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False Fire Alarms remain a huge concern within the education sector- interrupting already carefully scheduled, planned and well-prepared lessons or even causing major disruption and distress to exams.  

Clearly, these false alarms cause significant inconvenience and disruption to students, staff, and visitors. They compromise everyone’s safety in the school and present a significant risk to the local community since the Fire Brigade will prioritise the school over other emergency callouts.

Solutions you should consider:

Anti-tamper products

The first and most straightforward way is to use anti-tamper products.

Fixfire® supplies a wide range of solutions designed to protect Fire Alarm Devices from inadvertent damage or deliberate misuse/vandalism.

Products include:

  • Local plastic cover flaps which attach directly to manual call points.
  • The stopper consists of a clear, tamperproof, tough polycarbonate cover, frame and spacer that retrofits over a break glass call point. When lifted to operate the break glass unit, its optional battery powered integral sounder emits a piercing 96dB (at 1m). Immediate attention is drawn to the area and a prankster will either run or be caught!
  • A range of steel web stoppers designed to protect fire detectors and warning devices. They are constructed from heavy-duty galvanised steel rod which is plastic-coated for durability and external use.
  • A range of polycarbonate enclosures are available for the protection of devices such as fire alarm control panels and associated control equipment. The enclosures combine tough rugged construction with stylish design and offer excellent protection with a key lock for authorised access.

We also provide anti-tamper devices for fire extinguishers and associated products.

KeyCall® Call Point

KeyCall® is a patented anti-ligature Fire Alarm and Access Control call point. It is designed to use the same key as the doors, providing simple operation for staff whilst eliminating nuisance activations by service-users.

KeyCall® has been developed by Fixfire® specifically for approved applications where standard versions would be vulnerable to abuse.

It is one of the best solutions for SEN schools and it is also compatible with a wide range of Conventional and Addressable Fire Alarm Systems.

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Got a question about False Fire Alarms? Need Fire Safety Compliance advice?  Get in touch today!

For over 45 years, Fixfire® has been providing quality products, systems and services for Life & Property Protection. Whatever your requirement, please call our Compliance Team for expert advice and a refreshingly different approach.

Freephone 08000 891999

BS5839-6:2019 and Design Requirements
BS5839-6:2019 and Design Requirements
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BS5839-6:2019 and Design Requirements
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