SABS updates national standard on fire detection and alarm systems

Issue 3 2021 Editor's Choice

The standards division of the South African Bureau of Standards (SABS) maintains and develops several national standards aimed at ensuring the protection of life and property from fire and fire-related damage.

As part of this legislated mandate, the SABS has recently published a revised version of ‘SANS 10139, Code of Practice for Design, Installation, Commissioning and Maintenance of Fire Detection and Alarm Systems in Non-Domestic Premises’, which brings South Africa in line with fire safety standards similar to those in the United Kingdom and Europe.

Scope of SANS 10139

The standard provides recommendations for the planning, design, installation, commissioning and maintenance of fire detection and fire alarm systems in and around buildings, other than dwellings.

SANS 10139 is based on the British standard ‘BS5839-1, Fire Detection and Fire Alarm Systems for Buildings. Code of Practice for Design, Installation, Commissioning and Maintenance of Systems in Non-Domestic Premises’. BS5839-1 was updated several years ago after fatalities occurred at an old age home in Lancashire that killed 14 elderly people.

This revised South African National Standard (SANS) comes at a time when the country has witnessed two devastating fires: the wildfire that swept the slopes of Cape Town's Table Mountain and spread to the University of Cape Town, burning the historic campus library and forcing the evacuation of students; and the incident where 700 patients were evacuated from Johannesburg’s Charlotte Maxeke Hospital, after a fire blazed through parts of the medical facility in South Africa’s largest city.

The seriousness of fire is often overlooked, and its impact is often underestimated. It is crucial that a national set of guidelines and rules for the designers and installers of fire protection systems is provided for them to follow and uphold. The costs of fires within this country run into the billions of Rands and this needs to be prevented.

What has been revised in the national standard?

• Updated recommendations about the need for a fire detection system, variations from the standard, system components, detection zones, communication with the fire services, staged fire alarms and manual call points.

• Updated requirements for smoke detectors.

• Updated requirements for spacing and placing of automatic fire detectors.

• A commentary has been added with regards to control, and references the appropriate equipment.

• Updated measures to limit false alarms.

• A commentary on inspection and servicing has been added.

Benefits of the revision

Laura Swart, chairperson and member of the SABS technical committee, said, “The revision of SANS 10139 will benefit the fire protection industry as it clarifies all requirements and will ultimately eliminate the confusion experienced by the protection industry. This, in turn, will result in a more effective use of the national standard, thus improving firefighting and improving the job of saving lives and preventing the loss of property. The standard also aims to mitigate the risk of failure of fire detection and fire alarm systems in and around buildings.”

The official title of the SABS technical committee is ‘SABS/TC021/SC01, Fire Safety – Fixed Fire Extinguishing Systems’.

Swart went on to say that the revision of the national standards was made possible by valuable collaboration with the Fire System Inspection Bureau (FSIB), the Fire Detection Installers Association (FDIA) and the South African insurance industry.

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