Intrinsically safe power supplyOne, overview
DXH-3.5/7.4 intrinsically safe power supply equipment for intrinsic safety mine.
1 product features
The product has the capacity to be big, long, continuous characteristics of portability, with electric quantity indication, convenient application etc..
2 the main purpose and scope
The product can be used to provide DC power for the other equipment or instruments or other underground coal mine gas, coal dust explosion hazard environment.
3 types of composition and its significance
4 explosion-proof type and mark
Explosion proof type: Mining intrinsic safety type
Explosion-proof symbol: Exib 1
5 the use of environmental conditions
Working temperature: 0 ℃ ~40 ℃
Relative humidity: 95%
Atmospheric pressure: 80kPa~110kPa
Containing coal mine methane and coal dust explosion hazard
In no significant vibration.
No environmental damage in gas insulated metal
In the absence of water.
Two, the working principle and structure characteristics
The 1 Principle
The power supply is composed of two ICP7S type lithium manganate battery series battery power supply component, single cell battery capacity is 1.75Ah, the battery is connected in series with the 3.3 Ω /20W current limiting resistor and fuse into the battery box, just after sealed by epoxy resin as a whole, form the intrinsically safe battery assembly. Ue=7.4V, Uo=8.4V, Io=2.5A
DXH-3.5/7.4 intrinsically safe power supply used in the underground, charging with special charger on the ground, underground charging is strictly prohibited.
Three, the main technical parameters
1 of rated voltage Ue:7.4V
2 of the rated current Ie:1.2A
3 power source for charging 8 battery indicator light
4 current indicator goes out one by one in the use process
5 of the battery capacity: 3.5Ah
------line----------------------------
- Link
-