High Sensitivity Smoke Detection – HSSD
HSSD (Aspirating Systems) are superb for protecting high risk, high value environments where early detection is essential. It's perfect for a range of complex environments, including server rooms, clean areas, and cold stores.
High Sensitivity Smoke Detection – (HSSD)
High Sensitivity Smoke Detection (HSSD) is the most sensitive form of smoke detection on the market. It is designed to give very early indication of an emerging fire condition. This pre-emptive warning provides the time necessary to take corrective action and avoid the danger that a fire can cause. HSSD may sometimes be referred to as an ‘Aspirating System’,
Benefits of HSSD:
- The incident can be dealt with through local corrective measures. For example, powering down equipment or use of portable fire extinguishers.
- This helps to avoid the expense of automatic suppressant release, or downtime due to fire damage or evacuation.
- Blazequel HSSD systems can be integrated into the main fire protection system, with subsequent levels of alarm being set for suppressant release or evacuation.
How HSSD Works
HSSD systems comprise an Air Sampling Unit (ASU) from which air sampling pipework is routed throughout the protected area. This area can be as large as 2000 square metres.
Air is continuously drawn via apertures in the pipework to the ASU which uses laser technology to analyse the air quality. At commissioning stage, the programmable threshold levels are set giving the facility for a pre-alarm warning at a first threshold and full alarm at a second threshold.
Applications for HSSD include very high bay warehousing, environments which are subject to extremes of temperature, e.g. cold stores, and areas with rapid air movement such as air conditioning plenum chambers.
■ HSSD is a fantastic solution for many areas where early detection of the fire is essential.
■ If pipework drop-downs are installed, all maintenance can be done from ground level – minimising hassle and the overall cost of ownership. This makes it ideal for high level applications.
■ HSSD can detect fires long before any other types of detector would be triggered, ensuring speedy detection in high risk environments.
■ HSSD can be used up to a maximum height of 43m.
■ HSSD systems can struggle with high dust levels. As the system is constantly sucking air from the risk area, if there is any dust in the air sample it can swiftly accumulate in the sampling pipework and filters – resulting in a loss of suction pressure which means the system can’t function properly.
■ The use of heavy duty filters and an air-purging system may be able to overcome this issue based on the environment the system is operating in.
In summary, HSSD is a robust, versatile and cost-effective solution that has many applications in the waste recycling industry. However, in dusty applications it is essential that you protect the system properly with specialist dust filters and air-purging systems, otherwise it probably won’t be long before your system has been rendered dysfunctional!
If you are working in a particularly dirty environment HSSD is probably not the best option for you. Contact us today to speak to our experienced team for advice and to and discuss how best to protect your business!
Stages of Fire
Most fires start with some form of overheating. At this stage fine particles are release as the combustion process begins.
At this stage these particles are so small that they may not be detected by point type detectors, and smouldering can continue for minutes, hours or even days before activating point type detectors! This incipient stage of smouldering fires provides the widest window of opportunity to detect and control the spread of fire
HSSD units can be programmed to be up to 1000 times more sensitive than point type smoke detectors, and will go through various alarm thresholds in these early stages, long before point type smoke detectors will respond to the fire.
This gives the huge benefit of being able to detect and deal with an emerging fire situation, before the fire becomes an established and potentially very destructive incident.
HSSD Fire Safety System
Call us on 01234 357357 or email us on the form below to find out more!
Call Us : +44 (0)1234 357357
The many guises of HSSD....
There are many names attributed to the humble HSSD system, including:
> Aspirating System
> Sniffing System
> VESDA (actually just an HSSD system brand)
> HSSD (High Sensitivity Smoke Detection)
They are all exactly the same solution, and at Blazequel we’re happy to call them whatever you like!
Give us a call today to discuss your requirements!
