Shenyang emergency fire lighting It is set to correctly guide the trapped workers, fire evacuation or fire rescue operations after the switch power supply of all normal lighting lamps is disconnected in case of a fire accident. Sometimes the fire emergency light will sound intermittently, why is this?
If the fire emergency light sounds intermittently, the switching power supply of the emergency light will be cut off, and the cable, power plug, or switching power supply can be checked. If it is a battery emergency light, it should be that the recharged battery power engineering is not enough, and all normal power consumption should use 230V voltage. It may also be that the emergency light has other faults, so we can find someone to repair it.
1. Intermittent sound is also called intermittent sound, which is what you call intermittent sound. Many piezoelectric active (DC) buzzers are;
2. Continuous tone buzzer, also known as long tone buzzer, is a single address buzzer, which is generally electromagnetic active (DC).
The emergency fire lighting is a special tool for this kind of lighting lamp, which is more commonly used in fire safety emergencies. It has a long emergency time, high brightness and automatic emergency function of turning off the power supply. The fire emergency lamps have the characteristics of low power consumption, brighter light and long service life. The design scheme next to them has a main power switch and indicator lights, which are suitable for public places such as processing plants, hotels, restaurants, universities and enterprises. It has the advantages of reliable operation, high stability and long service life. It is applicable to high-rise buildings such as factories, hotels, shopping malls and buildings for emergency lighting in case of power failure. Metal lamp holder or flame retardant plastic lamp holder shall be adopted, with wall mounted, portable and hanging installation modes.
1. Aluminum profiles and metal materials are selected for electrostatic spraying. The slim design scheme has a novel and beautiful appearance.
2. Light LED shall be used for lighting, with surface color ≥ 16cd/㎡, symmetrical, mild and strong penetrability.
3. The emergency switching time is ≤ 0.3S, with sound over discharge and over charge discharge maintenance functions.
4. Select maintenance free nickel cadmium battery pack with emergency time ≥ 90 minutes.
5. To ensure that the emergency time is long enough, please charge it for more than 24 hours before use.
6. Select chip and switching transistor.
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