The lithium batteries we install are IP 65, the cells are sealed in a metal enclosure which must have some form of fire rating, which would suffocate a fire before it could even start. (been trying to get the fire rating from Sunsynk, IP 65 5.1 kwh, let me know if you have any joy)
It has a built in BMS with all the safety features to prevent over charging, overheating and all the safety stuff.
Sunsynk web page has a lithium battery installed under a stairwell in a cupboard, so it cant be that dangerous, so why all the fuss in SA? Educate us, we are all waiting.
https://www.sunsynk.org/
I am yet to hear of a court case where the power that be have tried to challenge people who install batteries in cupboard and occupied areas.
Worse case scenario, the terminals might burn due to loose connections if the installer doesn't crimp the lugs properly, but that would happen if the battery was installed in the garage, house or office.
I would say this whole lithium battery frenzy is a scam, a way for installers to rip a bigger whole in the customer bank account due to all the extra cost involved in running cables all the way to a garage and back, creating another challenge, volt drop. If you look at most inverter installations the installer use cables rated for the inverter, for example a 5 kw with 2.5 mm and maybe a 4 mm wire. If you start looking at the distance from the meter box to the main DB, then all the way out to the garage AC bypass DB and all the way back to the main DB. Start derating the wire in the hot roof space and under the ground in conduits. The engineers (if they know what they are doing) are going to be laughing at the installers when they try register the systems. Who is going to lose a lot of money again, yip you guessed right, the public.
You think there is a problem with shady installer now, wait till the registration process start gaining momentum, you gonna see them dropping like flies, disappearing into never never land. not just the shady ones.
You know what else is coming, summer baby, lets see how these badly installed units handle the 35-40 degree temperatures
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