The audible warnings are activated whenever a train pulls into or out of a station, or crosses a street or pedestrian crossing on the METRO Blue and Green lines. With 86 light-rail vehicles, and headlights on each end, electronic technicians have been tasked with building hundreds of modules and harnesses — the wiring that ties them into the power supply. Building the hardware is just step one. Because the wig-wag lights are a modification from the original design, Electro Mechanic-Technicians Doug Robinson and Brooks Letourneau were tasked with coming up with a way to fit them into both the newer Siemens and older Bombardier trains.
Wig-wag headlights have been installed on two trains and the entire fleet will eventually be outfitted. In addition to providing greater visibility, the project will improve reliability. That being said, as it comes to lights I dont really know much, so I'm hoping that someone can enlighten me. My question is what is the difference between having a strobe system and a wig wag set up. I know that with wig wags you are just utilizing your stock lights in the front and rear.
How do strobes fit in with all of this? They go in the same place, correct? Anyways, thanks for any help and stay safe. Tags: None. If my basic HazMat training has taught me nothing else, it's that if you see a glowing green monkey running away from something, follow that monkey!
Comment Post Cancel. Then so my next question would be why get a set of strobes? Are they brighter or more effective than simply utilizing wig wags?
Sorry, if these are dumb questions. They are far superior than the strobes. If you choose to go with strobes your headlights will drown them out if you have both on at same time. In my opinion the headlights flashers are the most effective attention getting warning light you can have. Just remember to turn them of as well as your headlights after getting on scene. This goes for pov's and emergency vehichles. I used to have wig-wags and switched to a strobe headlight system.
If you just want to put strobes in your headlights, you can find some less expensive systems that have just a two outlet power supply. Wrong again. Just wire the wigs up normal as if the fog-lamps were headlights. No difference. With the wigs off and power applied to the fog lights - they will work. Also, a mention was made about the flashing speed being slow because the load is less than headlights. This should not be the case if you are using a wig-wag made by either AMI or Whelen. These are the most common ones.
Galls are actually made by Whelen. These all use independent relays inside that don't care about load. Any wig-wag that uses a vehicle directional flasher may have speed problems or may not work at all because of load differences. Now, with this aside, here is how you can rig up a wig-wag to work for rear flashing. This will allow the 3rd brake light to still work, while flashing, on vehicles that have one. This is fairly difficult to explain in words, but easy to do.
It probably needs to be diagrammed out, so try and build one off of this. I don't have the time to write out an ascii diagram, sorry.
This will feed the wig-wag unit, the relays and lights. Logically break down the relays. There are a total of 4 poles. On one pole you will have nothing wired to it - this will be wasted as you only truly need 3 poles.
On another pole do the same for the right taillight. All of the above is pre-work for setting up the wig-wags. Everything should still work normal after this is done, so test it. The current is low enough that we can share the same power line for this. Final step This works. This can look like a small bird's nest when you are done, but it works great.
Works best on older American cars. If you can buy a kit. If anyone is interested Email me and I can Fax you a diagram for the one I made. I use it to alternate my brake and reverse lights on scene. I know its illegal in PA but I have been lucky so far. I dont use them enroute, and if I can I try not to use any lights enroute. At least til I can use a red one!
Too many people dont know how to react to a blue light. I had a call tonite where the family of a not too serious diabetic followed the ambulance about ten feet back. With his four ways blinking he ran lights , almost got in an accident and elbowed out my medic unit. At the hospital he tried to park in the amb bay. He couldnt figure out why the medic driver was screaming at him. Lets try to help educate these poor bastards before we are picking them up.
Jeff Did you happen to instruct this individual to meet you at the hospital rather than follow you as you were leaving the scene. When ever a family member says "I'll follow you", I give them those instructions.
Even more, I've stopped and RE-instructed family members. Last thing I need is another patient. Ken A. This device alternately flashes the red brake lights and white reverse lights. Now, this is a device "designed for this function" but I did have a problem! As I criused on down the road with my Traffic Backer on, it applied the brakes, ever so slightly, each time the red lights cycled!
I sensed a minor lurching as a went down the road. I believe we did confuse HAL. I stopped using it enroute, and just used it on scene. Thank Master MedControl that it didn't cycle me into reverse in sync with the white lights! Oh, for the days of my dad's '68 Chevy Impala. No computers, a carburator, and countless hours standing in freezing cold handing may dad tools as he worked on it every weekend! This is because in the early 90's, Nissan did something stupid with integrating the lights and the braking system.
After several complaints, and shorts, and whatnot, they decided two years later to stop doing that. Ford used to have the brake lights wired into the automatic transmission on their vehicles in the mid 80's, and stopped that practice as well they would kick down out of overdrive The best thing to do with a POV and such lighting systems is to mount additional lights on you deck or bumper, and NOT use the lights that are on the vehicle.
Unless you do it the right way and use a system that does not just 'attach' to the existing wires, but rather requires complete cuts of the original wires. If the wires are cut during 'wig-wag' mode, the computer won't get the wrong signals and won't mess things up. This will work if you do it this way with any vehicle. The worst that could happen is you would get an alert that says your taillights are not working if your vehicle is equipped with such a warning option.
Sunday June 01 , hots I actually use a different set-up to flash back-up and fog lights together. No diodes needed. When circuit is operating, lamp lights when rear flashers are off.
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