Electrical Fire Monitoring System

The electrical fire monitoring system accurately monitors the faults and abnormal states of the distribution lines by monitoring the leakage (residual current) and temperature of the lines or connection points. It can effectively prevent common building electrical fire accidents caused by grounding arcs due to leakage and high temperature of the lines or connection points. It is of great significance for energy conservation and personal safety protection.
The electrical fire monitoring system and the fire alarm system are complementary and will serve as a subsystem of the fire alarm system (fire warning system). The JK series electrical fire monitoring system developed by our company can be self-contained and used independently.

JK-DQ751 1

The JK-DQ751 electrical fire monitoring equipment integrates multiple functions such as monitoring alarm and alarm output, meeting the requirements of the national standard GB14287.1-2014 "Electrical Fire Monitoring System Part 1: Electrical Fire Monitoring Equipment". It can be widely used in various fire alarm projects to monitor electrical fires. Adopting wall mounted/modular structure, high-performance microprocessor and switch power supply, two bus transmission, LCD Chinese character display, low system power consumption, strong anti-interference and anti vibration capabilities, reliable operation, stable performance, easy operation and use.

Usage environment:	Temperature: 0℃~40℃; Humidity:＜95% RH (40℃, non condensing)
AC input voltage:	220V士10/15%，50Hz士1%
Communication input power:	≤300W
DC backup power:	DC24V/7Ah, Fully sealed maintenance free battery
Loop capacity:	≤200 addressing points; Total capacity: ≤800 addressing points
Line system:	Two buses
Bus length:	≤1000 meters (cross-sectional area 1.0mm² copper twisted pair RVS)
LCD specifications:	7-hour 800*480 dot matrix
External dimensions:	Length 410mm x Width 130mm x Height 600mm

JK-DQ750 2

The JK-DQ750 electrical fire monitoring equipment integrates multiple functions such as monitoring alarm and alarm output, meeting the requirements of the national standard GB14287.1-2014 "Electrical Fire Monitoring System Part 1: Electrical Fire Monitoring Equipment". It can be widely used in various fire alarm projects to monitor electrical fires. Adopting wall mounted/modular structure, high-performance microprocessor and switch power supply, two bus transmission, LCD Chinese character display, low system power consumption, strong anti-interference and anti vibration capabilities, reliable operation, stable performance, easy operation and use.

Usage environment:	Temperature: 0℃~40℃; Humidity: ≤ 95% RH (40℃, non condensing)
AC input voltage:	220V士10/15%, 50Hz士1%
Communication input power:	≤100W
DC backup power:	DC24V/2.2Ah, Fully sealed maintenance free battery
Loop capacity:	≤50 addressing points
Line system:	Two buses
Bus length:	≤1000 meters (cross-sectional area 1.0mm² copper twisted pair RVS)
LCD specifications:	3.3 English Time 160*160 Dot Matrix
External dimensions:	Length 290mm x Width 100mm x Height 348mm

JK-DQ752 3

The JK-DQ752 combined electrical fire monitoring detector has electronic coding and a unique 1D address, which can be set online through the JK series electrical fire monitoring equipment or through an encoder.
Having one residual current detection channel and one temperature detection channel, occupying only one address point, the alarm threshold of the channel can be set by the monitoring device; The CTZ series residual current transformers and temperature sensors adopt an external connection method to increase installation flexibility, and also have the function of detecting disconnection or short circuit faults in external transformers and temperature sensors.

Usage environment:	Temperature:- 10℃~+40°C； Usage environment humidity: ≤ 95% RH (40℃, non condensing)
Working voltage:	24V pulsating voltage (powered by the bus of electrical fire monitoring equipment)
Working current:	≤0.6mA
Line system:	Two bus (non-polar)
Bus length:	≤1000 meters (cross-sectional area 1.0mm² copper twisted pair) (when equipped with JK-DQ751)
Remaining current alarm set value:	300mA~800mA (adjustment accuracy of 100mA, monitoring equipment settings); Alarm time: ≤30s； Connect residual current transformers CTZ6 and CTZH61F series, 10mA~1000mA, input/output ratio of 2000:1
Matching temperature sensor:	EIDT100 temperature sensor, measuring range 65℃~100℃ (adjustment accuracy 5℃, monitoring equipment setting), alarm time: ≤ 40S
Shell protection level:	IP30
Shell material and color:	ABS, white
External dimensions:	Length 80mm x Width 40mm x Height 80mm (excluding base)

JK-DQ753 4

The JK-DQ753 series residual current electrical fire monitoring detector has electronic coding and a unique 1D address, which can be set online through the JK series electrical fire monitoring equipment or through an encoder. Having one residual current detection channel, the alarm threshold of the channel can be set by the monitoring device; The detector and residual current transformer are integrated, simplifying installation; Only using the bus can work, making wiring convenient.

Usage environment:	Temperature:- 10℃~+40°C； Usage environment humidity: ≤ 95% RH (40℃, non condensing)
Bus operating voltage:	24V pulsating voltage; Working current: ≤0.6mA
Line system:	Two bus (non-polar)
Bus length:	≤1000 meters (cross-sectional area 1.0mm² copper twisted pair RVS) (when equipped with JK-DQ751)
Alarm setting value:	300mA~800mA(Adjustment accuracy of 100mA, monitoring equipment settings)
Alarm time:	≤30s
indicator light:	Alarm indicator light: red, always on when an alarm is triggered; Inspection indicator light: green, flashing when communication with monitoring equipment is normal
Shell material and color:	ABS, black
Supporting residual current transformer type:	Measurement range of 10mA~1000mA, input/output ratio of 2000:1

model	Wire hole size （mm）	Installation method		Maximum rated current of phase line(A)	long （mm）	wide （mm）	tall （mm）
model	Wire hole size （mm）	rail	rail(mm)	Maximum rated current of phase line(A)	long （mm）	wide （mm）	tall （mm）
JK-DQ753-Y160	Φ49	√	60	160	88	45	120
JK-DQ753-Y250	Φ73		82	250	118	45	152
JK-DQ753-F160	122x30		145.5	160	170	45	110
JK-DQ753-F250	150x38	√	173	250	192	45	124
JK-DQ753-Y400	Φ93		110	400	145	45	180
JK-DQ753-Y630	Φ105	√	126	630	159	45	195
JK-DQ753-Y800	Φ125	√	149	800	188	45	226
JK-DQ753-Y1000	Φ150	√	185	1000	219	45	256
JK-DQ753-F400	210x45	√	240	400	274	45	153
JK-DQ753-F630	220x50		261	630	288	45	150
JK-DQ753-F1000	325x60		390	1000	426	45	203

Products and Applications

Electrical Fire Monitoring System