Fire Shutters Exmouth

Fire Shutter installer in Exmouth

Fire Rated Shutters are an increasingly popular option and offer fire protection at up to four hours greater than would be the case for a standard non-fire rated door or shutter. They can be used to section off and protect a particular part of a building, the whole building, or even provide protection between floors (horizontal fire shutters).

Fire Shutters help many businesses to ensure that they protect their goods, buildings and employees from the threat of fire by offering potentially significant delays to the spread of fire. If you are a business owner and take the security and safety of your business, premises and staff seriously, you may be surprised to know that every year many businesses are forced to close as insurance companies can refuse to meet claims on the grounds that building regulations and Loss Prevention Council requirements have not been met in relation to fire spread. Fire Shutters from A&A are the perfect way to ensure compliance.

Fire Rated Roller Shutters

All our fire shutters are manufactured and produced in accordance with the parameters and technical respects indicated within the specification, which was submitted to the Warrington Fire Research Establishment. The shutters are constructed to Warrington Fire Research Centre WARRES No 192095, the test is in accordance with of BSEN 1634-1 : 2008.

Self Coiling Operation

All manual fire shutters are designed that they should be left in the open position and close only under fire conditions.

The self coiling manual fire shutter is under sprung so that closes quickly in the event of a fire.

The self coiling shutters have secondary guide channels to govern a drop bar; this falls under its own weight once the fusible link has been activated.

Chain Operation

All manual fire shutters are designed that they should be left in the open and close only under fire conditions.

The chain operated fire shutter is opened and closed through the JM500 manual unit, which incorporates a controlled descent facility.

The unit has the facility to simulate a fire test via a pull and reset cord.

Electrical Operation

There are three main methods of automatic operation. Firstly, fusible links involving the use of solder wire as connection in the activation circuit. With its relatively low melting point the heat radiated from a nearby fire will cause it to melt and this activates the door.

Secondly, a fire relay means that the fire shutter or door is connected to the fire alarm system. When the alarm is sounded, the fire shutter activates. Finally, there is an audio/visual warning that is used in connection with the fire shutter that is connected to the alarm system. It usually operates with a time delay in conjunction with the fire relay. During this delay an additional alarm is sounded, warning those in close proximity to the door that is about to close, thus allowing them to exit the affected area.

Building regulations require that openings in fire resisting walls or partitions must have a door with an equivalent fire rating to that of the wall or partition. Otherwise the integrity of the wall is undermined.

All electric fire shutters are available in 3 phase, 415volts, 50hz or 1 phase, 240 volts, 50hz.

The shutters are driven by a geared electric motor, which has an integral controlled descent mechanism, emergency hand chain facility and push button starter.

The shutters rate of descent is controlled through the gears being constantly engaged, the closure speed is approximately 100mm per second. The clutch can be reset and the door can be raised and lowered in a normal manner. Each motor incorporates a relay inhibitor to prevent the solenoid œburning out if the signal is still coming from the fire alarm.

For information on solenoids and fusible links see modes of activation.

Modes of Activation

Fire Relay

Principally the commonly used means of release, the characteristics mimic the use of the solenoid on the conventional fire shutter, again linked to the fire alarm, the shutter rather than closing manually through the gearbox will of course be powered down.

The unit will require a maintained supply; if this is not possible a separate battery back up unit can be provided. 200mm long x 130mm wide x 70mm deep. A volt free signal is required from the fire alarm.

Fusible Link Release

On activation the link which is a soldered link separates and releases at 68 degrees centigrade, on the manual shutter this will release the drop bar and the shutter will close under its own weight, on the electric shutters the manual brake release is activated and the shutter will close under a controlled manner.

Manual Solenoid Release

All solenoid release mechanisms are designed to be linked into the fire alarm, the signal required from the fire alarm is 24 volt D.C. 0.5amps on activation.

The signal from the fire alarm will trigger the manual brake release and allow the door to close under a controlled descent.

Auto Solenoid Release

Again this is linked to the fire alarm and the ampage requirements are as above, this is the most commonly used activation allowing for frequent testing and re-setting, when the door is returned to the open position (after removal of the fire signal), the solenoid can be automatically reset.

Audio Visual Warning (FDI)

Principally this unit is designed to delay the closing of the fire shutter, generally the fire alarm is linked to the audio visual unit and from the audio visual unit into the solenoid.

On activation from the fire alarm the unit starts to œflash & sound, this unit contains a programmable timer which effectively delays the signal to the solenoid to close the door.

Battery Back-up Unit

Principally thetube motor fire shutter requires a maintained supply, if this cannot be achieved then effectively the shutter will require a battery back up unit.

Fundamentally if under fire conditions there is a power failure the shutter must have a means of ensuring closure, the unit provided will give the facility for at least one operation under fire conditions.

The unit must remain plugged into the mains at all times, or alternatively you can wire this into a fused spur.

In effect the shutter should always receive a signal from the fire alarm, under British Standards the fire alarm must have a battery back up, in the unlikely event of a power failure under fire conditions i.e. alarm has been triggered and the door is closing, if there is a power failure at that particular time the battery pack provided will continue to close the door.

When using the shutter under normal conditions, if there is a power failure the unit can be used again for at least one operation to open or close the shutter manually via the key switch, please bear in mind the unit will require a recharging period of up to 8 hours.