Writer：admin Time：2021-09-02 14:15 Browse：
the emergency light in this article just self-contained version for projects. The flash lights / outdoor camping lights are not included.
What should concern before chose emergency light?
● First, Reliable & Useful, no any complains after installed.
● Second, Good appearance.
● Third, Easy installation. The salary of qualified installer always >€30 per hour, if it can save 5 minutes per installation, €2.5 you saved at least.
There are 4 phases of this article, It include:
3. Control Gear (LED load included)
Quoted standard: IEC60598-2-22:2014, EN 60598-1:2015+A1:2018; EN 1838:2013
Part 1. Batteries
1-1: What battery should I chose
According to IEC60598-2-22:2014
Question 1: The Li-ion battery is ECO-Friendly, cheaper, higher energy density. Why do not chose it?
Answer 1: This standard was issued in 2014. The Li-ion battery was not popular in those days, then the EC did not clear whether it is available.
Meanwhile, The Li-ion battery is not reliable in high temperature/Fire.
If the building catches the fire. The Ni-Cd battery, Ni-MH battery will die quietly. How every Li-ion may explode and become the fire source. (Take the Samsung Note 7 as example )
It is a extremely low probability case. However, once it happens, serious events.
Potential trend 1: The new version 3.2V LiFePO4 battery, which may be allowed in next version 60598-2-22. It was proved
1-2: Did the capacity of the battery enough?
If emergency light designed according the request (A.5.2.d), the emergency light should work
● >1.5 hours if 1h emergency light
● Nearly 4 hours at least if 3h emergency light
These request is one of the core factor to ensure that, the emergency light can still work 3 hours after 4 years.
Addr: Western Renmin Road 1906, Shangyu district, Shaoxing City, Zhejiang,China