#GRIDDED SPRINKLER SYSTEM FULL#

At the start of a zone (before the first sprinkler head) there must be: What makes a Sprinkler Zone?Ī zone, in terms of a sprinkler system is an area of sprinkler heads and pipework that is fed via a common main. However, in a high rise apartment block, the location of a sprinkler activation is unlikely to be obvious without an electronic signal being generated.

Open plan warehouses would be unlikely to benefit from this as an activation could be easily seen (and probably heard). Secondly, zoning means that a fire signal is generated from each zone to give a more specific location of a sprinkler activation. There are many other methods and equipment specified in Annex F of BSEN 12845 and TB233 to ensure that the sprinkler system remains 'on' at all times. Members of the public should not be allowed inside the non-sprinklered areas during works. Zoning means that service and maintenance works can be performed whilst maintaining sprinkler protection to the majority of the building.

#GRIDDED SPRINKLER SYSTEM FULL#

This means that if the sprinkler installation is closed off then the stock is at risk and therefore the insurance company will have to be informed and may require additional precautions to be put in-place during this time.įor Life Safety buildings, every effort must be made to keep the sprinkler system in full working order whilst people are inside. Warehouse sprinkler systems are typically un-zoned for convenience. A warehouse will typically have sprinkler protection to protect the business by protecting the stock from damage or destruction from fire. Firstly, it allows part of the sprinkler installation to be shut off to allow for servicing and maintenance without affecting fire protection in other areas of the building. There are two main reasons for zoning a sprinkler system. Some typical examples of zoned buildings are therefore: a shopping centre, office block, airport or multi-use development.

Zoning only applies to OH (ordinary hazard) type occupancies with a wet sprinkler installation(s). Where the sprinkler system is installed for an insured risk, zoning is optional and is usually present at the request of the insurer. The first basic rule for zoning a sprinkler system is that zoning is a requirement when Life Safety (or the not quite so catchy 'Additional measure to improve system reliability and availability') has been specified. This article is based on automatic fire sprinkler systems designed to BSEN 12845 and the LPC Rules for Automatic Sprinkler Installations (2015).

Gridded sprinkler system