First, the field test site: Chengdu, Sichuan Province, a large vehicle production company cutting workshop.
Second, the field test time and lighting conditions
Initial illumination Lx value test : October 28, 2006. Illumination Lx value test after light decay : May 10, 2007.
Light decay period: seven days and twelve days, namely: 222 days.
The light decay period actually turns on the light ignition time: during this period, the time to turn on the light every day is: 10-14 hours. Namely: 2220 hours - 3108 hours, average: 2664 hours.
The description of the lighting time, during the winter and spring, during the winter and spring of Sichuan, the day is shorter, the foggy days and rainy days are more, the lights are turned on earlier in the afternoon and the lights are turned off in the morning. Inver, most of the lighting time should be about 14 hours per day, that is, the actual lighting time should be about 3,000 hours .
Third, the field test staff: Qingdao Frank (Frank) Microelectronics Co., Ltd.
EMC Promotion Cooperation Unit in Sichuan Province: Mr. Li
Chengdu, Sichuan, a large vehicle production company: Mr. Wang, electrical management engineer
Fourth, the field test instrument: LX-101 digital illuminance meter.
Five, the test site several light source
( 1) Chengdu, a large-scale vehicle production company's blanking workshop, standard large-span heavy industrial production plant, the vertical height of the light source hanging is about 11 meters.
( 2) Chengdu, a large vehicle production company's blanking workshop, there are three kinds of light sources that are igniting and running:
1, a brand, 8U-135W high-power energy-saving lamps, with its special 17-inch frosted lampshade, vertical hanging.
2, a brand, 6U-85W high-power energy-saving lamps, with its special 17-inch polished lampshade, hanging vertically.
3, Qingdao Franco 6U-50W lighting EMC special high-frequency energy-saving lamps, with Frank special energy-saving lampshade, vertical hanging.
Sixth, the field test method
For the three light sources in the field, one is randomly selected. Immediately below the light source, the illuminance Lx value was measured with a digital illuminometer.
VII. Field test illuminance Lx value, light decay value, light decay rate, luminous flux maintenance rate
Two field test illuminance Lx values, light decay values, light decay rates, luminous flux maintenance rate list
A brand 8U-135W high power energy saving lamp | A brand 6U-85W High-power energy-saving lamp | Qingdao Frank 6U-50W EMC special high frequency energy saving lamp | |
October 28, 2006 Initial illumination Lx value test | 33Lx | 19Lx | 48Lx |
Initial illumination Lx Increase value | 1, Qingdao Frank 6U-50W EMC special high-frequency energy-saving lamps illuminance Lx value, than a certain brand 8U-135W high-power energy-saving lamps increased = 48Lx-33Lx = 15Lx. 2, Qingdao Frank 6U-50W EMC special high-frequency energy-saving lamps illuminance Lx value, than a brand 6U-85W high-power energy-saving lamps increased = 48Lx-19Lx = 29Lx. | ||
Initial illumination Lx Increase rate | 1, Qingdao Frank 6U-50W EMC special high-frequency energy-saving lamps illuminance, than a certain brand 8U-135W high-power energy-saving lamps to improve = (48Lx-33Lx) ÷ 33Lx ×100% = 45.45%. Namely: increase by 0.45 times = 1.45 times. 2, Qingdao Frank 6U-50W EMC special high-frequency energy-saving lamps illuminance, than a brand 6U-85W high-power energy-saving lamps to improve = (48Lx-19Lx) ÷ 19Lx ×100% = 152.6%. That is to increase 1.526 times = 2.526 times. | ||
May 10, 2007 Illumination Lx value test after light decay | 24Lx | The light does not exist | 46Lx |
Light decay interval | From October 28, 2006 to May 10, 2007, 7 months and 12 days, lighting time: 3000 hours or so | ||
Illumination after light decay Lx Increase value | The illuminance Lx value of Qingdao Franco 6U-50W EMC special high-frequency energy-saving lamp is higher than that of a brand 8U-135W high-power energy-saving lamp=48Lx-24Lx=24Lx. | ||
Illumination after light decay Lx Increase rate | Qingdao Franco 6U-50W EMC special high-frequency energy-saving lamps illuminance, than a brand 8U-135W high-power energy-saving lamps to improve = (46Lx-24Lx) ÷ 24Lx ×100% = 91.67%. That is: increase by 0.92 times = 1.92 times. | ||
Light decay interval | From October 28, 2006 to May 10, 2007, 7 months and 12 days, lighting time: 3000 hours or so | ||
Measured light decay value | =33Lx-24Lx=9Lx | =48Lx-46Lx=2Lx | |
Measured light decay rate | =9Lx÷33Lx ×100%=27.27% | =2Lx÷48Lx ×100%=4.17% | |
Luminous flux maintenance rate | =100% - 27.27% =72.73% | =100%-4.17% =95.83% | |
Measured light fading multiple | The light decay value of a brand 8U-135W high-power energy-saving lamp is Qingdao 9F-50W EMC special high-frequency energy-saving lamp = 9Lx ÷ 2Lx = 4.5 times | ||
Measured light decay rate multiple | The light decay rate of a brand 8U-135W high-power energy-saving lamp is Qingdao 27.6U-50W EMC special high-frequency energy-saving lamp = 27.27% ÷ 4.17% = 6.54 times |