Document Itself, NEW Build Properties, Changes to Grades

THE ESSENTIAL CHANGES TO BS 5839: Pt.6: 2004 – AT A GLANCE

THE DOCUMENT ITSELF

Each clause of the document is now split into 2 parts. Firstly, there is the commentary – in italics – this sets out the reasoning behind what at first sight may appear to be arbitrary recommendations. The recommendations are in normal type, so it is quite possible to simply refer to these alone. The intention is to make the document easier to use; whether it succeeds in this aim is a matter of personal perception.

NEW BUILD PROPERTIES

There are now extended recommendations with regard to new build properties. Essentially these are:

•All properties must have mains powered alarms with a back-up supply – Grade D system

•Smoke alarms should be positioned in escape routes

•Heat alarms should be fitted in the kitchen and possibly the principal habitable room. The definition of a principal habitable room is ‘habitable room that is normally the most frequently used room for daytime living purposes’. This would normally be the living or dining room

CHANGES TO GRADES

There is essentially no change to Grade F, although a five year minimum battery life is recommended in tenanted properties, along with a recommendation that the battery can only be removable by the use of a special tool. A slot headed screwdriver is not considered as meeting this requirement as many articles can be used as an alternative.

Grade C systems now require a central control, rather than a level of control as previously. This implies that some form of

panel is required and security systems are put forward as a possible means of meeting this requirement.

Grades D, E and F now include heat alarms.

FIRE RISK ASSESSMENT

Fire Risk Assessment receives brief coverage at the start, with much greater emphasis given to the subject in Annex A at the back of the document.

It is worth noting the Commentary of Section 4.1: “It is considered that the level of fire risk in dwellings covered by this part of BS 5839 is unlikely ever to be sufficiently low to obviate the need for some form of fire detection and fire alarm system”.

LEVEL OF COVERAGE

LD1, LD2 and LD3 remain unchanged.

However, the terminology has changed. The Code now refers to ‘Category’ of system instead of ‘Type’ of system.

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