Retters, retters if you would only materialise the visit to Retty Towers, I could explain so much to you. Weekly testing is more or less nothing to do with the condition of MCPs, it is primarily to make sure the system has not completely died.
Ah Sir Col even I know that - I didn't explain my point very well, and I partly misread NT's question too .
Nevertheless the point of mentioning a larger building vs small demonstrates that it is not solely about testing the functionality of a call point, because clearly there is a huge disparity between the examples I gave (In my example: one call point tested once every 100 weeks in the large building vs 1 call point tested once every 13 weeks in the small building)
But even so the test does also serve to determine if a call point works or not. Bear with me on this.
I also mentioned that the type (or use) of building, category of system, and sophisitication of the system etc would all have an obvious bearing (on whether the RP could consider a relaxation of weekly testing) .
If I have CIE which can indicate battery fault, mains fault, sounder fault as well as general fault, and I visually check it for faults daily does that not achieve the same thing as an MCP test?.
If I have category of fire alarm system which includes detection can I relax my weekly testing regime on the theory that I can tolerate the failure of an MCP and assume that a detector will activate instead ? And in the knowledge that in a bigger building down the road their hundred plus call points are not tested on such a regular basis as mine? In otherwords it we can assume its rare for a MCP to fail, otherwise why would the standard allow such disparity?
I'm thinking especially about our hapless landlords of HMOs and flats where daily / weekly checks in their properties simply don't get done. I was just considering the practicalities.
I'd argue so long as I have a system with a decent panel which can indicate all of the faults above, and someone (a trusted tenant for example) looks at that panel daily,and acts on any faults does it matter if I dont test my call points weekly? Don't know perhaps I'm way of mark here.