1) The emergency lights installed in the living room and evacuation passage (stairs, EV hall, underground) shall be automatically lighted not only during the power failure but also when fire is broken out even under the commercial power supply service so that smooth evacuation activity can be carried out.
2) The circumstances where automatic lighting of emergency light is required at the early stage of fire are as follows.
Firstly, when the fire is occurred at night
Secondly, when emergency lights are installed at the underground emergency stairs, emergency passage, etc.
Thirdly, when securing the visibility is difficult due to smoke
3) Securing constructability and economic feasibility by installing the emergency lights with 3 wire 1 unit system
4) Fire alarm for each household in case of fire under the maintaining state of regular power supply
5) When regular power is supplied, emergency light is turned on by sensor.
6) When emergency power is supplied during power failure, emergency light is automatically turned on.
7) Perform sequential and delayed control in order to prevent the damage of switching contact due to the influence of L load.
8) When regular power is returned during the use of emergency power, the emergency power is maintained for 7 seconds before being cut off in order to carry out sequential and delayed control
9) Fire safety standards for emergency light (NFSC 304: National Security Agency Announcement No. 2015-37)
“Emergency light is the light which is automatically lighted as it is installed in the living room and evacuation passage so as to have safe and smooth evacuation activity during the power failure in accordance with fire occurrence”
10) Protecting electric/electronic devices from overvoltage due to neutral line open phase and erroneous wiring generated by aging of equipment and carelessness
11) Protect electric/electronic devices by cutting off the power supply at the instant when overvoltage is flown in.
12) Causes of overvoltage
- Neutral line disconnection of supplier side
- Poor quality of transformer suppy voltage
- Neutral point shifting due to the neutral line disconnection
- Erroneous wiring during the self maintenance work
13) Increase the surge protection effect by using protection device integrated SPD
Address : 505ho, 33 Omokcheon-ro 132beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do, Republic of Korea
Website : http://www.hjie.co.kr