• Conventional LED traffic lights System 1
Conventional LED traffic lights

Conventional LED traffic lights

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     Division I professional production of conventional LED traffic lights, 200, 300, 400 sections of the traffic lights, the product features are as follows: meet the People's Republic of China GB14887 standard technical indicators; High brightness: LED assembly wick bright colors; low power consumption: only incandescent quarter, only 15VA; long life: up to 50,000 hours; dimming control: automatically adjusts the brightness according to environmental changes; limiting control: automatic calibration load current; brightness balancing: balancing current offers optical components specially designed circuit plus, light special uniform; strict aging: aging products by long power, more stable performance. Protection rating greater than IP53. 1. Off the optical properties of the light intensity distribution 1.2 1.1 chromaticity coordinates meet the requirements of GB14887 GB14887 compliance with the relevant requirements, including the function of defective color vision to be achieved observer provisions 2. Electrical performance 2.1 operating voltage AC220 ± 15% V 50 ± 2Hz 2.2 rated power single lamp 10M? Reach 50000h 3. Physics 2.4 Dielectric strength 1440VAC 2.5 ignition withstand life under normal conditions of use? Mechanical properties 3.1 of wind pressure in line with GB14887 the relevant requirements of 3.2 anti-vibration requirements in line with GB14887 requirements 3.3 protection class IP53 4. adapt to the environment is greater than 4.1 lights working environment temperature is -40ºСˉ50ºС, resistant to high temperature -40ºС and 4.2 + 80ºС test temperature when 25ºС, air relative humidity less than 95 %

Product Name 203 full screen lights

 Model WDM-JD203

 Product voltage AC 85-265V

 Product Power 22W

 Product size 250 * 850 * 140mm

 Translucent surface diameter 200mm

 Housing material PC

 Horizontal or vertical mounting equipment installed

 Protection class IP53

 Standard GB14887-2006

 2-year warranty

Product wiring brief description:

When you are connected to 220V voltage, the black wire to the zero line, the red line connected FireWire,

When you connect 12V voltage, the black wire to the negative, then positive red,

After power product red yellow and green according to set a good time automatic cycle conversion.


Technical Parameters

Red plateful: 90 LED, single brightness: 4360-5250, wavelength: 620-625nm, and down about perspective: 30 °, Power: ≤8W

Yellow plateful: 90 LED, single brightness: 4620-5545, wavelength: 592-594nm, and down about perspective: 30 °, Power: ≤8W

Green plateful: 90 LED, single brightness: 8667-10400, wavelength: 503-506nm, around and down Angle: 30 °, Power: ≤8W

Ambient temperature: -40 ℃ ~ + 80 ℃ Operating voltage: AC185V-265V 60HZ / 50HZ

Light Box Case Material: PC visual distance ≥300m


Q: Before anyone blindly answers this, I'd like to first request that only people in the power transmission industry answer, as they are the only ones likely to know.I have a customer who is asking to mount several very large pieces of electrical equipment 15 feet in the air, mounted to a large structure. All of these equipment pieces are 5000 or more pounds and pad-mount by design. I am questioning this request on the basis of legality. Basically, I am curious to know, is there anything in the NEC that says mounting pad-mount equipment overhead is illegal? If so, I could really use a hint as to what section of the NEC code.
I don't believe that there is anything in the NEC that addresses this. Obviously, installing anything on a structure presents challenges that require the attention of a qualified structural engineer. And depending on the location, you could be facing some additional concerns. You would need to check on seismic activity in the area, and since 'pad mount' equipment has a broad profile, wind-loading could be more challenging if you have a wind-force specification to meet. The other issue you would need to consider is whether installation on a structure presents any particular safety concerns. Without knowing any more, my inclination would be to think that you might want to provide an enclosure around the structure to prevent civilians (rmeaning 'teenagers and drunk college students) from climbing it. Just out of curiosity - why does your client want this? We know that the client is always right - even when he insists to stupid things. I trust there is a good reason for asking for something that is bound to increase installation cost by probably 100%.
Q: I haven't worked in this field in the UK, although I am able to diagnose problems, service and repair electrical equipment.
Go to the local unemployment office, put a notice up on store bulletin boards one at the postoffice if allowed. Put add in paper. Make sure you aren't breaking the rules and regulations of the country you want to work in but then you can find that out when you go to employment office. Go to schools, see if they need your expertise, go to people building just on the new list and not quit finished yet. Good luck.
Q: I just moved into a house a week ago and for the past couple of days weird things have been happening. The night before last my tv in my bedroom changed channel by itself and also I had a playstation remote sitting on top of my playstation and that fell on its own. Last night I was laying in bed and my door opened by itself and I am 100% sure that it was shut all the way. And again in the middle of the night it changed channel. I'm starting to get scared because all of this happens when my boyfriend is at work and its just me and my two boys. Is my house haunted, and what can I do?Btw my house is probably 100 years old.
Don't pay attention to this, this beings can't harm you nor your children unless you open yourself to him by feeling scared, they feed off the energy we call fear, the more energy you give him the worst it will be. If you just ignore this it will go away, every time you feel scared ask to your spirit guide to protect you. I have had many similar experimces with ghosts and now I can see and sense them.
Q: I might be starting a job doing industrial electric, and I want to make sure I can read the blue prints good. I am recently graduated from high school and have a vo-tech background in electrical, only no blue print reading. I know how to read schematics, ladder diagrams, and residential blue prints, but how different are industrial and residential blueprints? Does anyone know a site where I can look at some industrial electric blueprints? I know when i get there they will be able to teach me how to read it, but I figured I would try to save everyone some time and see what I can figure out before I get there.
No, you shouldn't;t have any trouble reading Electrical Blueprints. Generally these are referred to as schematics unless they are Incorporated into a building or other design, then they are called blueprints. And the other difference is that a blueprint will layout primary feeds, conduit sizes, step down transformer placements and switchgear sites. Contractor locations and lighting loads and layout. So basically its a building block to help layout the actual wiring and equipment along with technical data to aide in installation and proper load capacities.
Q: I am a commercial real estate appraiser and I oftentimes need to be specific about the electrical service available within a building. I can read the service panel(s) and total the various amps volts, but I don't know what is relevant to report. For example, I recently inspected a very large industrial building and all of the service panels combined had a total of 30,000 amp, and I also noted that it had a 3-phase unit. Is that relevant to report that is was 30,000 amp, 3-phase service? Should I also report the voltage? Should it read: 30,000 amp/### volt 3-phase service. In the future, can I just read the service panel(s) and total the numbers? Just because a panel says 4000 amps, does that mean it actually has 4000, or that it can handle that many amps?I know that's allot of questions, but any help that I can get would be helpful. Thanks!
You would be better off to hire an electrician to get this info as there are a lot of variables. The voltages and phases available, the amps available, and the number of circuits in each one. Many panels you have to remove the cover to see the rating, and this is dangerous. A typical building may have thirty 225 amp 3 ph. lighting panels that are fed off of 60 amp circuits for 277 vac lighting. The service may only be 800 amps for the whole building. This is very common and meets NEC requirements. The largest bldg. where I work at the Univ. is 400k sq ft and has a 4000 amp service at the 480 volt level. This is the same as 145 amps at the 13.2 kv level. It all depends on whether or not you own the high voltage service also. An industrial bldg. could be much more.
Q: Can someone tell me more about this MOS or others that relate to this field of work. Also, how will a soldier be utilized under this MOS. thank you
Well you won't be a Soldieryou will be a Marine 1142 is a High Tech JobElectronicsCircuit boards and the like Great Background in Electronics for a Civilian Career Do not waste your Time in the CorpTake every Electronics course you can Go to Night School and stay out of the Bars and Strip Joints I was a Sgt 1141/42 in Vietnam Earned an EE Degreeowned a successful Business now RetiredX2 You will be assigned to a Utilities Platoon (Extremely Few in Numbers) Within an Engineering Battalion Probably the Least numbers of Marines in any Outfit Must Maintain and Repair any and all Electrical Generators and Pumpswithin the Command you are assigned to ie: 7th Engrs was assigned to the 1st MarDiv in Vietnam Maybe assigned to an MEB aboard shipFMF and make Landings and set up your equipment SEMPER FI !!!!
Q: If I decide to choose electrical engineering as my college major what would I be doing on a regular basis for my job?
Electrical engineering is generally deals with the study of electricity, electronics, and electromagnetism.Electrical engineers work in a very wide range of industries and the skills required are likewise variable. These range from basic circuit theory to the management skills required of project manager. The tools and equipment that an individual engineer may need are similarly variable, ranging from a simple voltmeter to a top end analyzer to sophisticated design and manufacturing software.
Q: Hi, I was wondering if anyone had any information on this car (specifically around a 2003 model) because I was planning to purchase one. From searching on google all I could manage to find was that they were sturdy, safe cars that cost a lot to repair, which I figured since it's a mercedes. Thanks!
try okorder
Q: How do I calculate (using mathematical equations) the load of my equipment to support and find the correct alternator and battery for my vehicle? I'm looking for an in-depth equation that explains what I have to find from the equipment specifications to the mathematical part evolved. I want to make the right choice for my vehicle without any word of some salesman to sell me a product with little to knowledge of the product they are selling.
Ideally , you want an alternators output amperage to be equal to the maximum amperage draw of all of your amplifiers plus about 40 amps to run the rest of the electrical equipment in your car. So if your amplifiers draw 150 amps at full power you would want a 190 amp or larger alternator. If you can not get a alt. that large , extra batteries can help fill the gap. The rule of thumb for batteries is one cca of battery power per watt of amplifier power.
Q: If an electrical equipment is designed for 220V at 60Hz, can it be used in a country which uses an electrical system of 240V at 50Hz. I'm not sure how true is this, but I've heard that the voltage would not be a problem but if the frequency is less, electrical equipments with motors will not be able to run at 100% performance which means the efficiency drops. Please enlighten me~Thank you
YES,it did. 50 hz AC motor becomes less torque while running with 60 hz power,because it has too much reactance (more turns of coil). Whereas 60 hz AC motor is running faster with 50 hz power and its life is shorten,because it has not enough turns of coil.

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