DSC PC1550 475ma Aux Max Load - Smoke Detector Question

[Stuart]

Hi -

I have a DSC PC1550 installed in a building. We would like to add
additional smoke detectors to the panel. Each detector uses about 80ua
(microamps) in a non-alarmed condition. Each detector uses 45ma when in
an alarm state. There is a 475ma limit on the Aux output which powers
these detectors. I'm currently drawing about 140ma on this circuit,
which includes three detectors.

I would like to add 4 more detectors. Tripping one, two (even three)
detectors would not exceed the current specs. However, if all of the
detectors tripped at once due to an act of God or some major event (i.e.
a major earthquake, the building blowing up, etc.) it would exceed the
current specs. Another possibility would be someone running around and
tripping all of the detectors in the loop.

Is it considered bad form to add more detectors than current limits
would allow for in a totally alarmed state, or am I over-analyzing this
situation?

Thank you in advance for all responses and suggestions!

- Stu

 

[Stuart]

Sorry - I was speaking of the residence in which I reside. I have a
habit of being vague on USENET.

- Stu

 

[G. Morgan]

alt.security.alarms

Another possibility would be someone running around and
tripping all of the detectors in the loop.

In your own house?

 

[Stuart]

I'm talking theoretical. If all the detectors trip, I don't want the
panel fuse to blow. I know it sounds crazy, but I believe in doing
things properly so that the system will operate properly under full
load. A stupid scenario, yes. Is it possible that all detectors could
trip - yes.