Dear K.Mark
I just received the equipment list from K. Suwat today.
I’ve compared the actual total power consumption in server room as detail in table below against with UPS’s capacity.
The UPS, it’s seem to be small one as detail in picture below. Therefore, I and Engineer still recommend to use 2 string for redundancy (1 string = 30 units of battery)
as vendor (Victrons) proposed which will able to provide the power back up to 120 minutes as determined in agreement.
The engineer not recommend to use only 1 string because UPS will not able to supply the power back up if one of all battery out of order and direct affect to
all equipment in server room break down.
Ps. UPS display 29% usage because CWA conducted MA under normal situation (The electric do not shortage)