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Jargon Buster

Letter I

IIP - Investors in People

Integral Laser Alignment

The FireRay 3000 has a built in laser which acts as a guide during installation. This ensures that the transmitter and the receiver are roughly aligned before continuing with the main alignment procedure.

Interconnected Smoke Alarms

Intumescent Seal

An intumescent seal is an integral part of a fire doorset. It remains dormant under normal conditions but swells to many times its original size when exposed to the heat of a fire, thus closing the gap between a fire door and its frame. Intumescent seals are frequently combined with cold smoke seals, which latter prevent the ingress of smoke around fire door edges in the early stages of a fire.

Investigation Delay Period Function

Programmable for length of time, which zone(s) it applies to and whether or not it operates in day/night mode. When there is an alarm in a zone programmed to operate in 'investigate' mode, the full alarm condition will occur after a delay. It is possible to manually impose a further delay, to allow the source of the alarm to be investigated. If the second delay expires, or there is another alarm in the same zone, then a full alarm condition is established. During either delay period, the panel may be reset in the case of a false alarm.

Ionisation Smoke Alarm

IP Rating

IP # First Number - Protection against solids Second Number - Protection against liquids Third Number - Protection against mechanical impacts (often omitted)
0 No Protection No Protection No Protection
1 Protected against solid objects over 50mm Protected against vertically falling drops of water Protected against impact of 0.225 joules
2 Protected against solid objects over 12mm Protected against direct sprays up to 15 deg. from vertical Protected against impact of 0.375 joules
3 Protected against solid objects over 2.5mm Protected against direct sprays up to 60 deg. from vertical Protected against impact of 0.5 joules
4 Protected against solid objects over 1mm Protected against direct sprays from all directions - limited ingress permitted Protected against impact of 2.0 joules
5 Protected against dust - limited ingress permitted Protected against low pressure jets from all directions - limited ingress permitted Protected against impact of 6.0 joules
6 Totally protected against dust Protected against strong jets from all directions - limited ingress permitted Protected against impact of 20.0 joules
7   Protected against effects of immersion from 15cm - 1m  
8   Protected against long periods of immersion under pressure  
9k Protected against close-range, high pressure, high temperature spray downs

For example IP65 would be interpreted for protection as follows: 6 (being the first number of the code, the number relates to the second column in the table) - Totally protected against dust, and 5 (being the second number of the code, the number relates to the third column in the table) - Protected against low pressure jets of liquids from all directions - limited ingress permitted.

This system is designed for IP ratings of up to three digits.

ISO 9001 Certified


ISO 9001: 2008 certifies that Safelincs operates a compliant Quality Managment System with regards to the provisions of fire safety equipment to the retail and wholesale markets. View the Certificate »