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At present, the state recognizes the new NATIONAL standard, and the old national standard products are gradually replaced by the new national standard products. The old national standard is mainly used in the maintenance of the fire protection system of old buildings, and the state imposes mandatory requirements on the use of the new national standard products for new projects.

1. The new standard emergency lights have added self-check function and fault alarm

The emergency lamp will work continuously for 30 days /-2 days, and then automatically emergency for about 35 seconds, and then restore the main power;

After working continuously for one year, the lamp will automatically emergency until the battery runs out of power and then automatically restore to the charging state.

The emergency light must be supplied for more than 90 minutes.

When the emergency time of monthly self-test is less than 30 seconds, or the emergency lighting time of annual self-test is less than 30 minutes, the lamp will automatically alarm;There will be an automatic prompt whenever the power is connected to the mains.Battery failure will automatically alarm.

When the light source fails to turn on, the yellow indicator light on the panel will light up and give an alarm.

Alarm frequency: at least once per minute, each time lasting 1-3 seconds, alarm sound between 65-85 db.

2. the new national emergency lights to meet the minimum brightness, illumination brightness several times higher

The new national standard has clear requirements on the surface brightness and luminous flux of emergency lamps: the surface brightness of fire emergency sign lamps should not be less than 50CD /㎡, and the luminous flux of emergency lighting lamps should not be less than 50Lm;

In the past, the old national standard fire emergency lamps used in the market lacked brightness requirements, which led to most of the lighting brightness of emergency lamps could not meet the requirements of fire;

The brightness of the new national standard fire emergency lamps is 10-50 times higher than that of the old national standard lamps. The brightness of the new national standard lamps is the promotion of the development of the whole fire cause.

3. the new standard requirements can not adopt the resistance capacitance step-down mode

The power factor of resistive and capacitive-step-down is too low, which wastes too much electricity. The experiment proves that an emergency lamp using resistive and capacitive-step-down consumes nearly one degree of electricity a day.

The phase of the normal circuit will be changed, so that a lot of current will be generated and hot in the middle line of the three-phase four-wire, which will damage the power grid if used in large quantities.

4. The new national standard increases the requirements on the level of protection

Protection level: it is to prevent people or animals from contacting with live parts of fire emergency lamps. The protection level is IP30 in the new national standard lamps to effectively prevent the death of people or animals.

At the same time, the protection grade of underground lamps is IP65, and the power supply with safety voltage is changed from the previous power supply with municipal voltage, which further guarantees the safety performance of emergency lamps.

5. The new national standard fire emergency lamps increase the requirements on creepage distance and electrical clearance

Creepage distance: according to the new NATIONAL standard, the creepage distance of grounded lamps is greater than 2.5mm;

Electrical clearance: The electrical clearance of fire emergency lamps shall be greater than 1.7mm in the new standard. The air and objects have the requirements of electrical conductivity, creepage distance and electrical clearance, which will reduce the electrical short circuit caused by this factor, reduce safety hazards, and protect the power grid.

6. The new national standard has added the requirement of connection between fire emergency lamps and emergency lighting distribution boxes

Emergency lighting distribution box is directly linked with fire equipment to avoid the occurrence of fire, the municipal power can work normally, but the emergency lamps cannot enter the emergency state, the emergency lighting distribution box will automatically put all fire emergency lamps into the emergency working state according to the fire linkage information;

7. The new NATIONAL standard has modified the requirements for the design of fire emergency signs and lamps

The new standard makes a new specification for the pattern of fire evacuation indicating lamps, and all the patterns are mainly graphics

One, it can make the information easier to recognize than the text;

Function two, can be in line with international norms.