Fire Alarm Maintenance 2017-11-21T20:47:19+00:00

Fire Alarm Maintenance

With the enforcement of the Fire Safety Order 2005, the person responsible for the building has a legal obligation to ensure the fire alarm is serviced and maintained using the correct procedures in accordance with the Fire Alarm Regulations with is the BS 5839-1:2013 Fire detection and fire alarm systems for buildings.

Code of practice for design, installation, commissioning, and maintenance of systems in non-domestic premises.

But putting this legal requirement to one side, making sure the fire alarm is operational and is in good working order is a benefit to all those using the building.

Below is a list of useful tips when it comes to testing, servicing and keeping the system fault free.

QUARTERLY INSPECTION AND SERVICE
TO FIRE DETECTION AND ALARM SYSTEMS

Only a competent person shall carry out these works.

Service works shall encompass the following:-

System logbook shall be examined. Any faults recorded shall have the necessary action taken to rectify.
Defects found during the service shall also be recorded in the logbook with the actions taken and carried out.

All false alarm records shall be checked at the time of each service. Where false alarms occur these will be preliminary investigated and action in accordance with Section 3 of BS 5839.

Check all the isolators, switches or protective devices affecting the fire system are labelled, correct rates and site to avoid a unauthorised operation.
Meter output voltages of power supply unit shall be recorded.
Batteries and their connections shall be examined and tested with the mains disconnected to ensure they are in good serviceable conditions and not likely to fail before next service. The housing of the batteries shall be checked for soundness, security and correct ventilation requirements and serviced as necessary.
Secondary batteries shall be examined to ensure that specific gravity of electrolyte in each cell is correct and any necessary remedial action taken.

Battery charge rate shall be tested and adjusted as necessary for correct operation.

Dual supply chargers shall be checked for changeover to batteries on mains failure, status of all indicator lamps, fault signalling to control panel and checks and test as recommended by the manufacturer.

A partial discharge test will be carried out on the batteries by means of a “dummy load” on annual basis or as per the recommendation of the manufacturer’s, if greater.

Where batteries are to be renewed the battery size shall be calculated for standby time and taking into account the current consumption of all devices.

Renewed batteries shall be clearly labelled with the installation date.

CONTROL AND INDICATING EQUIPMENT

  • Control switches and visual indicators shall be checked for correct operation.
  • Test operation of the fire alarm devices shall be checked.
  • Fault indicators and their circuits shall be tested by the simulation of a fault condition.
  • All ancillary functions shall be tested.
  • Detector line voltage shall be tested with a test meter and adjust where necessary.
  • Test for alarm by operation of trigger devices, on operation it shall result in the correct zone indicated and correct text details displayed on indicating equipment.

(Trigger devices used to carry out these tests shall be recorded in the logbook at each service).

  • Test operation of plant shutdown relays and outputs to adjacent systems (where applicable)
  • Check outputs to repeater panels (where applicable).
  • Check operation of facilities for the automatic transmission of the alarm to call centre. The correct transmission of each signal shall be confirmed and recorded (where applicable).
  • Clean and check the tightness of all connections, soundness of panel fixings renew as necessary.
  • Visually inspect for sign of moisture ingress and other deterioration.
  • All checks and tests as recommended by the manufacturer of the control and indicating equipment and other components of the system.
  • Printers are to be tested to ensure that they are in full operation.
  • The name and telephone number of the system shall be prominently displayed at the indicating panel

CALL POINTS

  • Switch mechanism of all manual call points shall be tested for alarm initiation. (This shall be carried out over the course of the four number service of a twelve month period, the number of call points tests divided evenly over this period).
  • Examine of call points for obstruction and advise where necessary.
  • Visual inspection for structural or building change which may have affect the compliance of system to BS5389 section 6.
  • Replace damaged call point glasses where necessary.
  • Examine and test connections, polarity, operation.
  • Loading/wiring diagrams/ID code, these shall be replaced where missing and costs included within the service.
  • Where call points are damaged these shall be renewed as necessary.
  • Identification codes shall be replaced where missing (all costs for label replacement shall be included within the service cost).

AUDIBLE AND VISUAL ALARMS

  • Check for correct operation of alarms.

Carry out a visual inspection to ensure that points are not obstructed and advise where necessary.

  • Audible sound pressure test levels shall be carried out in all areas and the levels recorded. (This shall be carried out over the course of the four number services over a twelve month period; number of audible and visual alarms tested divided evenly over this period). An Acceptable level of intelligibility Sound levels shall be achieved as in accordance with BS 5839 throughout all areas of the building. Where sound levels fail to comply with recommendation these shall be reported to the CA, advising him on recommendations to overcome this situation including all additional costs.
  • Bells and Sounders are not to be mixed and be of a similar sound.
  • Visual inspection for mechanical damage or other influence that may cause adverse effect on the operation of equipment. Where damaged or beyond repair these shall be replaced.

All lenses shall be cleaned and adjusted where necessary.

  • Identification codes shall be replaced where missing (all costs for label replacement shall be included within the service cost).
  • Visual alarms shall comply with Clause 17 of BS 5839.

HEAT DETECTORS

  • Visual inspection for mechanical damage or other influence that may cause adverse effect on the operation of equipment, (Where damaged or beyond repair these shall be replaced).

Confirm suitability and location of heat detectors to satisfy the objectives of the fire alarm system and the recommendations of BS 5839.

  • Each heat detector shall comply with BS EN 54-5 and be functionally tests for alarm by means of a suitable heat source and produce a fire signal. Check for operation of indicator led’s where fitted.
  • Clean detectors as per manufacturers recommendations.
  • Following the functional test, detectors shall be tested on a test set. Where results do not fall within the manufacturer’s recommendations these shall be returned to manufacturer for cleaning and recalibration.
  • Identification codes shall be replaced where missing (all costs for label replacement shall be included within the service costs).

PHOTOELECTRIC SMOKE DETECTORS (Optical)

  • Visual inspection for mechanical damage or other influence that may cause adverse effect on the operation of equipment. (Where damaged or beyond repair these units shall be replaced).
  • Check detectors for alarm initiation with simulated smoke source, and produce a fire signal. Check the operation of indicator led’s where fitted. (This shall be carried out over the course of the four number services over a twelve month period; number of detectors tested divided evenly over this period).
  • Clean detectors as per manufacturers recommendations
  • Following the function test, detectors shall be tested on a test set. Where results do not fall within the manufacturers recommendations these shall be returned to the manufacturer for cleaning and recalibration.
  • Identification codes shall be replaced where missing (all costs for label replacement shall be included within the service costs).
    Note: Simulated smoke to be of a type that does not cause damage or affect the performance of the detectors; the manufacturer’s guidance on suitable materials should be follows).

IONISATION SMOKE DETECTORS

  • Make a visual inspection of mechanical damage to either detector or base.
  • Check detectors for alarm initiations with smoke source and produce a fire signal. Check the operation indicator led’s where fitted. (This shall be carried out over the course of the four number services over a twelve month period; number of detectors tested divided evenly over this period).
  • Clean detectors as per manufacturers recommendations
  • Following the function test, detectors shall be tested on a test set. Where results do not fall within the manufacturer’s recommendations these shall be returned to the manufacturer for cleaning and recalibration.
  • Identification codes shall be replaced where missing (all costs for label replacement shall be included within the service costs).
    Note: Simulated smoke to be of a type that does not cause damage or affect the performance of the detectors; the manufacturer’s guidance on suitable materials should be follows).

OTHER TYPES OF DETECTORS (where applicable)

Service to other types of detectors will be carried out as above items, in accordance with the BS5839 Part 1:2002 and the manufacturer’s recommendations.

Where battery operated smoke detector are part of the service requirements within the properties, the batteries within each unit shall be replaced on an annual basis. The cost of battery replacement shall be included within the schedule of charges, section 3 of Specification.

REMOTE INDICATORS

  • Make a visual inspection of mechanical damage to either indicator unit.
  • Check for correct operation by simulation of fault condition.
  • Clean indicator unit as per manufacturers recommendations.
  • Identification codes shall be replaced where missing (all costs for label replacement shall be included within the service costs).

Wireless Fire Alarms Systems Maintenance

It is important to note when maintaining wireless fire alarms there are additional testing requirements.