New and old national standard of fire emergency lamps and lanterns is what separates
The fire emergency luminaries GB17945 difference between new and old national standard
"New gb" GB17945-2010
On May 1, 2011 formally implemented
"Old" national standard GB17945-2000
The brightness of lamps and lanterns
Identification lamps: minimum surface brightness of the screen not less than 50 CD / ㎡
Identification lamps: minimum surface brightness of the screen is not lower than 15 CD / ㎡
Lamps and lanterns of lighting lamps and lanterns: minimum luminous flux of no less than 50 lm (lumens)
Lighting lamps and lanterns: emergency brightness of less than 70% of the main electric intensity
Enclosure protection class
Accordance with the requirements of the IP30.I.e., does not allow greater than 2.5 mm diameter solid foreign body into the lamps and lanterns is internal
Do not make clear requirements
Acoustic signal alarm
Lamps and lanterns is a failure occurs, should have a sound alarm signal, and the sound pressure level is not lower than 65 db (db)
Old gb only light signal alarm, the rules of the silent alarm signal
Automatic test function
Monthly and yearly lamps and lanterns should be automatically to the internal light source, battery, circuit and so on carries on the inspection, month duration of 30 ~ 180 seconds, yearly check for more than 30 minutes.
No provisions
Manual self-checking function
Lamps and lanterns should have manual simulate the function of the automatic inspection
No provisions
Appearance of fastening structure

Without external tools, lamps and lanterns should not be the tear apart
No provisions
Grounding continuity
Lamps and lanterns is part of the circuit inside the connection must be grounding continuity
No specific provisions, lamps and lanterns is only required to ground
Circuit model
Rules are not allowed to use resistance capacity step-down circuit model.Specific as follows: circuit inside the lamp should not have a cuboid, red or blue or green) of large capacitance
No provisions
The power cord
The power cord conductor cross-sectional area of more than 0.75 square millimeter.Specific as follows: the total cross-sectional area of copper wire in the power cord should be greater than 0.75 square millimeter (available micrometer to measure)
No provisions
other
Rules for the classification of fire emergency lighting and evacuation indicating system, protection grade, requirements, test, inspection rule, mark, instruction manuals, etc
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How to distinguish between new and old national standard
A. Product appearance