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Battery size

Leemh99

By Leemh99
in Regulations & Standards

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sparky999 Newbie

sparky999

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Posted

Cmin=1.25(T1xI1+T2xI2x1.75) which is the calculation in BS 5839-6:2019 which is easier in my view as I hate doing division. the T2 is 0.5 which is the same as dividing by 2 .

T1 = 24hours 

l1 = quiescent load 

T2 = 30 minutes in alarm

l2 = alarm load

1.75 = derating factor

Peter Robinson

Freelance

M:07889038650

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