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Weekly bell test, two systems
#1
Two adjoining office blocks within one building complex, each has its own Pt1 fire alarm system. Two of the upper floors have been knocked though and the systems have been linked together, so effectively both sound on activation of any device on either system.

Regarding the weekly bell test, which has been undertaken to date on each system, whilst the panels are interlinked are we required to test only one callpoint (as they now both operate) or continue to regard them as separate systems (which they are?) and test each individually in their own right?

Presumably as they (should) have been certificated individually on installation, they are clearly separate systems, and unless a modification certificate is issued which states they are now one, then should the weekly testing continue under the assumption that they are two fire alarm systems?

Interested in how BS 5839 regards this, as wish to test in accordance with the recommendations (naturally).
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#2
I still treat them as seperate systems, so seperate service reports and a weekly test on each system.
Nothing is foolproof to a sufficiently talented fool...   24

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#3
They are definitely separate systems and test one call point per block
Peter Robinson




07889 038650

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#4
Hard to say without seeing the site.

Is it one building? Wouldn’t it be one system with two panels? No need to do it for both however I would recommend an MCP On both panels bi weekly so one week panel one and week two panel two if that makes sense.

If it is two different buildings with a link corridor built to connect them together then I’d go for both panels each week.
*Hits call point*... "we are on test aren't we?"... Whoops 
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#5
I've always said one test per panel, but then technically the 8 loop advanced is two panels, but I never tell clients to make sure they're testing an mcp off each panel.

Where's Will when you need him?
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#6
(20-11-2019, 09:23 PM)Harrysu Wrote: Hard to say without seeing the site.

Is it one building? Wouldn’t it be one system with two panels? No need to do it for both however I would recommend an MCP On both panels bi weekly so one week panel one and week two panel two if that makes sense.

If it is two different buildings with a link corridor built to connect them together then I’d go for both panels each week.

Imagine a four storey building, cut it in half vertically so you half a left block and a right block. Each has its own entrance, they are completely separate. Each has its own fire alarm. Now the third and fourth floors have been knocked through so these now straddle the complete width of left block and right block. The two fire alarm systems have been linked together (might be one triggering a zone of the other and vice versa, not sure). 
I'd still see them as two separate systems so an MCP on each every week?
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#7
Imagine those two buildings, and two addressable systems, that have been linked together with a network.... Still two systems, or now one ??

I dont know, but an interesting question.
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#8
(21-11-2019, 12:05 AM)Tilly Wrote: Imagine those two buildings, and  two addressable systems, that have been linked together with a network....  Still two systems, or now one ??

I dont know, but an interesting question.

I'd consider 2 separate panels networked as 2 separate systems so needing a call point per control panel per week tested.
I'd say off the original question that they are a class change type of linkage, so a call point on each panel to confirm each signal each way weekly, as usual, just my thought for the day.
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#9
(20-11-2019, 10:27 PM)Monkeh Wrote: Where's Will when you need him?

Working (yes I do do some work now and then)

but anyway

whats the point of the weekly test?
To make sure that system is still works and is capable of giving a signal and that everyone knows what the fire alarm sounds like.

so if you have more than one panel linked either networked or linked and the complete building hear the sound fine one mcp does it I would do what Harrysu said

(20-11-2019, 09:23 PM)Harrysu Wrote: I would recommend an MCP On both panels bi weekly so one week panel one and week two panel two if that makes sense.

so what if you have a network system which has alarm zones and the mcp only makes sound in a local area? well than you should do more than one mcp
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All comments and views are mine own and may not reflect the views of FIA
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#10
(21-11-2019, 12:19 PM)Will Lloyd Wrote:
(20-11-2019, 10:27 PM)Monkeh Wrote: Where's Will when you need him?

Working (yes I do do some work now and then)

but anyway

whats the point of the weekly test?
To make sure that system is still works and is capable of giving a signal and that  everyone knows what the fire alarm sounds like.

so if you have more than one panel linked either networked or linked and the complete building hear the sound fine one mcp does it I would do what Harrysu said

(20-11-2019, 09:23 PM)Harrysu Wrote: I would recommend an MCP On both panels bi weekly so one week panel one and week two panel two if that makes sense.

so what if you have a network system which has alarm zones and the mcp only makes sound in a local area? well than you should do more than one mcp
Exactly my point test one mcp per panel. Had a hospital with 100 nodes and told them the weekly test was 1 mcp per panel but the Trust Fire Officer would only allow the Estates Dept a srlection of zones per week
Peter Robinson




07889 038650

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