Are British Standards worth the paper they are written on? The obvious answer is 'no', because for their cost they should be written on gold leaf!
More seriously, many people use BS5839 part 1 as their 'bible' for everything to do with fire alarm systems, but is their reliance on this document misplaced?
Whilst accepting that BS5839 part 1 is just a set of recommendations, then just how useful are they to anyone?
It seems that there are any number of recommendations, approvals and guidances that have equal weight as BS. If there are so may 'competing' documents, and they offer conflicting recommendations then which recommendation is most correct?
As an example of this problem I offer the following extracts from BS5839-1:2002+A2:2008:
20.2.h) Manual call points should be fixed at a height of 1.4m above finished floor level..........
Note 6 The figure of 1.4m is arbitary........A minor difference (e.g. less than 200mm) in mounting height (e.g. to align with the mounting height of light switches) need not be regarded as significant, nor need it be recorded as a variation.
Note 7 Guidance in support of national building regulations (e.g. in England and wales, Approved Document M [3] under the Building Regulations) recommends that switches and controls be mounted no higher than 1.2m above floor level, so that they are accessible for disabled people.
If the guidance of the national building documents is equally as important as the recommendations of BS then surely 1200mm is the only acceptable mounting height? If so why doesn't BS recognise this and amend it's recommendations?
If the guidance of the national building document is not as important as recommendations of BS then why even mention the 'guidance' within the BS?
If the 1200mm or lower mounting height only comes into play if it is likely that a significant number of disabled persons may need to operate the manual call point, then why not say so?
Obviously, there are those who will say that the DDA says that everything has to be suitable for use by disabled persons. If this is so, why doesn't BS say so? The guidance of the national building document certainly seems to infer this is the case.
The whole thing is a mess.
What we need is just one set of recommendations so that everybody is singing from the same hymnsheet.
Obviously, no-one on any of the various committees want to be the ones to go. But surely it's got to happen so that we get some consistancy to theses recommendations, approvals and guidelines.
Looking at the above example it seems that BS is the one trying to pull in all directions at once, so maybe they should be the first to disappear!