COMPANYNAME SOLAS TRAINING MANUAL PART B – Section 5 Alarms, Fire Drills and Fire Control Plans
M/V “VSLNAME� Page 3 of 7
Do not attempt to fight the fire until others have been informed. When another person appears one should carry on raising the alarm whilst the other, providing it is safe to do so, commences first-aid fire fighting. 5.1.2
Manually Operated Call Points
LE
Alarms can be raised by means of manually operated call points, automatic smoke detectors and a wide range of heat detectors.
M
P
A manually operated device which upon breaking causes a circuit to be made or broken signalling a fire alarm. There are two basic types each containing a breakable front plate of either glass or plastic. The call point for use in open circuit systems contains contacts held open by the pressure of the front plate. Breaking the plate closes the contacts and initiates an alarm. Call points for closed circuit systems operate in the reverse manner, the contacts being held in the closed position and open upon the breaking of the Front plate. Alarm testing facilities are normally provided for open circuit points. Closed circuit points do not necessarily require this facility since the circuits are continuously under test. Flameproof call points are available, also handle operated points for use in areas where broken glass may cause a hazard. In certain instances internal telephone systems may be used.
A
The break glass call point is a device to enable personnel to raise the alarm in the event of a fire, by simply breaking a frangible element and thus activating the alarm system. The following notes give guidance for the correct sitting and positioning of break glass call points:
1.
S
2.
Break glass call points should be located on exit routes and in particular on the floor landings of staircases and at all exits to the open air. Break glass call points should be located so that no person needs travel more than 30 m from any position within the premises in order to raise the alarm. Generally, call points should be fixed at a height of 1.4 m above the floor, at easily accessible, well-illuminated and conspicuous positions free from obstruction. The method of operation of all call points in an installation should be identical unless there is a special reason for differentiation. Manual and automatic devices may be installed on the same system although it may be advisable to install the manual call points on separate zones for speed of identification.
3.
4. 5.
Issue No. 1
Issue Date: DD/MM/YY
Approved by: