Author: Mao Yu Hai
Recently, LED fluorescent lamps have become one of the earliest indoor LED lamps because they have many advantages over fluorescent lamps.
First, the advantages
Compared to fluorescent lamps, LED fluorescent lamps have 10 major advantages:
1. High luminous efficiency
The luminous efficiency of fluorescent lamps is about 55-80 lm/W (Philips T8 fluorescent lamps have a luminous efficiency of 72 lm/W), while the luminous efficiency of LEDs is above 100 lm/W. Recently, the luminous efficiency of Cree's XLampXP-G has reached 130 lumens / W, and will continue to improve in the future. The difference between the two is now nearly doubled, and it is likely to reach more than three times in the future.
2. High efficiency of lamps
The efficiency of a luminaire mainly refers to effective light efficiency, because a fluorescent lamp emits light 360 degrees, and light emitted in the opposite direction is of no use. Therefore, fluorescent lamps usually use a white lampshade to reflect a considerable portion of the reverse light. In general, fluorescent lamps have an efficiency of only about 70%. The LED fluorescent lamp is 120 degrees, so all the light is effective light. Although sometimes the 120 degree illumination angle is narrower, it is still sufficient in most cases. And this angle of illumination can also be adjusted as needed.
3. LED light effect is high
As mentioned earlier, the luminous efficiency of Philips' T8 fluorescent lamp is 72lm/W, and the 36W fluorescent lamp emits 2592 lumens, but the luminous efficiency is only 70%, so the effective lumens are 1814.4 lumens, and the luminous efficiency of LED has exceeded 130lm/W. Assuming 100 lm/W, as long as 18W, it can reach 1800 lumens, that is, as long as half the power of the fluorescent lamp can have the same brightness. Moreover, the luminous efficiency of LEDs is increasing year by year.
4. Power efficiency is high
Because all luminaires require a dedicated power supply in addition to incandescent lamps, the efficiency of the power supply affects the efficiency of the entire luminaire.
Take Philips' 36WT8 fluorescent lamp as an example. Its rated output power is 36W, but due to the access of the magnetic ballast, the measured input power is 42.4W, that is, the core inductance loss is 6.4W, the efficiency is reduced to 85%, most domestic iron core inductor power consumption Above 10W, the power factor is below 0.512. The power efficiency of LEDs is usually as high as 90%, and an 18W LED fluorescent lamp requires only 20W of input power. The power factor can also reach 0.9 or more.
It saves more than half of the electricity compared to fluorescent lamps, which means that an 18-watt LED fluorescent lamp can replace a 36-watt fluorescent lamp.
Not only that, LED fluorescent lamps have many other advantages.
5. Long life
A carefully designed LED fluorescent lamp can last up to 50,000 hours. The life of a fluorescent lamp is usually only 5,000 hours (some domestic fluorescent lamps have a lifetime of only 300 hours). The difference between the two is nearly 10 times. The best long-life fluorescent lamps are also only 10,000 hours, and the difference between the two is also five times.
Strain Insulator are used in guy cables supporting utility poles, to prevent any high voltage on the cable due to leakage currents or an electrical fault on the pole from reaching the lower part of the cable which is accessible by the public. Strain Insulators For Lines are also used in guys supporting radio antenna masts. Strain Type Insulator will normally installed in the middle of stay wire. Strain Post Insulator give protection in the event of accidentally broken live wire that can accidentally energizing a stay wire and remaining in contact with line which doesn`t trip.
Features
1.The ceramic is under compression rather than tension, which takes advantage of ceramic's greater compressional strength2.If the ceramic breaks the two wire loops are still linked and will not fall to the ground
3.Very long life, made of inorganic materials and do not age
4.Very reliable, with a proven track record. Over 80 years of experience
5.Easier to maintain, can be coated and washed
6.Strong in compression
The following strain insulators comply with the ANSI standard, the glaze colour of the insulators are brown etc..
| MAIN DIMENSIONS AND STANDARD PARTICULARS | |||||
| Type | 54-1 | 54-2 | 54-3 | 54-4 | |
| Creepage Distance,mm | 41 | 48 | 57 | 76 | |
| Main Dimensions | H | 89 | 108 | 140 | 171 |
| h | 44 | 57 | 79 | 67 | |
| h1 | 64 | 76 | 103 | 114 | |
| D | 64 | 73 | 86 | 89 | |
| d | 44 | 54 | 60 | 60 | |
| d1 | 16 | 22 | 25 | 25 | |
| Mechanical Failing Load,KN | 44 | 53 | 89 | 89 | |
| Low Frequence Flashover Voltage | Dry,KV | 25 | 30 | 35 | 40 |
| Wet,KV | 12 | 15 | 18 | 23 | |
| Net Weight, Each Approx., kg | 0.5 | 0.65 | 1.2 | 2.2 | |
We warmly welcome friends both domestic and abroad to visit our company, if you have any questions, please contact with us directly.
Strain Insulator
Strain Insulator,Strain Insulators For Lines,Strain Type Insulator,Strain Post Insulator
FUZHOU SINGREE IMP.& EXP.CO.,LTD. , http://www.cninsulators.com