Jargon Buster

Fall Arrest Harness Buckles

Quick Connect:

Quick connect buckles come in two parts and one part passes through the other to create the connection.

Quick Release:

Quick release buckles work by one part of the buckle being inserted into the other to make the connection and is released by pressing both sides of the buckle simultaneously.

Fire Extinguishers Safe for Use on Live Electrical Equipment

Fire Extinguishers displaying this symbol (left) have been di-electrically tested and are suitable for use on live electrical equipment

To verify the safety of extinguishers on live electrical equipment, the di-electric test in BS EN 3-7 Clause 9 uses a very high voltage of 35,000 Volts at a distance of 1 metre from the user and measures the flow of electricity back to the extinguisher. As an added precaution, the extinguishers that pass the test are then limited to use on 1000 V of live electricity.

For more information, please see [createSectionLinkWithAnchorTargetBlank=2134]our article on the use of water-based extinguishers on live electrical equipment[/createSectionLinkWithAnchorTargetBlank].

Fault Output

This is a relay with normally open and normally closed contacts which are triggered when a fault condition occurs.

Fire and Smoke Seal

Fire and smoke seals are fitted to either a fire door or its frame and help to prevent the passage of fire and smoke. In the event of a fire the intumescent material expands sealing the gaps around the door and maintaining the door's fire integrity.

The seals are available with 30 or 60 minutes protection and can be either surface mounted or rebated into the door or frame.

Fireco

Fire Door

A fire door is a complete installed assembly, also known as a fire doorset, which is constructed of fire resisting components including doorframe, door leaf/leaves with any glazing panels required, ironmongery (locks, latches, hinges, etc), intumescent seals and an automatic closing device.

It is an internal door, whose function when closed is to resist the smoke and flames of a fire for a minimum period of time, typically 30 minutes (FD30). As such, a fire door acts to create/protect an escape route through a building or compartmentalise a fire in a section of the building, to facilitate the swift and safe evacuation of people from the premises.

Fire Door Retainer

Fire Escape Hoods

Fire escape hoods are designed to prevent inhalation of toxic smoke and gases in the event of a fire. They are designed to fit over the head, face or nose and mouth of a person escaping a fire and can provide up to 15 minutes protection against toxic smoke and fumes.

Fire Exit

A fire exit is the final exit on a fire escape route through a building. The fire exit door must open easily, immediately and wherever practicable in the direction of travel, i.e. outwards, into a place of safety outside the building. A fire exit must remain unobstructed at all times and bear the appropriate signage: e.g. ‘Fire Exit – Keep Clear’.

Fire Extinguisher rating

Fire Hose Reel

Fireproof Hinges

Fire Risk Assessment

First Fix Concept

The transmitter and receiver are supplied in two parts: one is the head of the unit, and the other part is similar to a large connector called the first fix. The first fix can be easily wired in and mounted, and then the transmitter or receiver simply twists on. On the controller, the first fix allows the installer to complete the wiring before the transmitter and receiver heads are fitted.

Fixed Temperauture Heat Detector

Fresnel Diffuser

Fire Door Closer Mounting Configurations

Door closers can be mounted in different ways depending upon the application for which they are being used. The three most common mounting types are detailed below.

Fig 1 Mounting
Also known as regular or projecting arm, this is the standard fixing position for a universal door closer. This is where the door closer is fitted to the opening face of the door on the hinge side. When a door closer is fitted in a "figure 1" configuration the arms of the closer will project outwards from the door at around 90°. Please Note: Fig 1 is suitable for all fire doors.
Fig 61 Mounting
The second fixing position for a universal door closer is commonly referred to as "figure 61" or transom. This is where the door closer is inverted and the body of it fitted to the head of the door frame opposite the hinge side of the door. This application allows a door closer to be fitted on external doors without the closer having to be exposed to the elements. When a door closer is fitted in a "figure 61" configuration the arms of the closer will project outwards from the door at around 90°. Please Note: The Certifire certificate must explicitly state approval for a door closer to be compliant in this configuration.
Fig 66 Mounting
The third fixing position for a universal door closer is commonly referred to as "figure 66" or parallel arm. This is where the door closer is fitted to the closing face of the door opposite the hinge side of the door. The arm of the closer is then fitted to a bracket supplied with the door closer. This application allows a door closer to be fitted on external doors without the closer having to be exposed to the elements. When a door closer is fitted in a "figure 66" configuration the arms of the closer will run parallel to the door and frame. Please Note: The Certifire certificate must explicitly state approval for a door closer to be compliant in this configuration.