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low voltage

  1. General Electrical Discussion
    Hi Guys, Need a bit of help here. Troubleshooting a failing snow melt system on a parking garage ramp. A portion of the ramp is no longer melting A transformer is used, Primary is 600V 3 phase, Secondary is 20V 3 phase. All 3 secondary leads go out of the transformer to attach to (3) separate...
  2. New Member Introductions
    I thought I would drop a note in here and let everybody know that a Ethernet cable manufacturer has signed up for Forum access. My primary goal is to help educate folks (everything from DIY to professional level) on Ethernet cable types, shielding/grounding, accessories, terminations, best...
  3. General Electrical Discussion
    Assuming that I'm considering motor power factor, efficiency, altitude correction and all those fancy but critical factors... which current should I consider as input to cable sizing by voltage regulation: 600V or 575V? FLA is defined as the current at full capacity drawn by the motor at rated...
  4. General Electrical Discussion
    I have a customer with this... We want to connect the hot tub where it is if possible without moving the existing telephone and TV service points. I know this is not ideal, but is it a code violation? I'm not sure. Thanks in advance. :glasses:
  5. New Member Introductions
    Hi everyone! I am an 06 limited energy electrical trainee in Seattle, WA. I work as an audio visual technician, so if there are any threads concerning that topic, I will make an effort to help or assist with. I have around 3200 hours of the 4000 required hours, and I am looking to begin my prep...
  6. General Electrical Discussion
    Well, I've been waiting about 3 weeks for my letter from the IBEW about my interview for an apprenticeship. I called a week after the interview, as instructed, and the guy wasn't too helpful. "I don't have the list, all I know is one guys place high is an already put to work, and one guy placed...
  7. General Electrical Discussion
    I have a customer who wants three pool pump safety switches wired to one buzzer. - I told him I am not sure I will be able to do this. I want to try and keep this simple. Each safety switch has one set of 24 volt contacts for a remote alarm, (buzzer). Let's say the buzzer has one set of...
  8. General Electrical Discussion
    Hi everyone; it's been awhile. :) I hope everyone is having a nice New Year! Got a service call because a main breaker was tripping instead of the branch circuit when a tenant was using a space heater. I overloaded the circuit to confirm and sure enough, the main breaker tripped, but NOT the...
  9. Residential Electrical Forum
    Hi, I am a newbie to this forum so please pardon my newbie inexperience here. :eek: I would really appreciate your input on this one. A client bought this outdoor chandelier for his patio...
  10. New Member Introductions
    Hello everyone I'm from Houston and I want to learn everything there is to know to be a good electrician. I like to learn about residential, commercial and industrial installations. I just graduated from San Jacinto Community College with an Electrical Occupational Certificate. Right now I have...
  11. Commercial Electrical Forum
    I am doing an audio install and getting lots of interference from the unshielded alarm wiring that is installed in the ceiling. It is not an option to put the wires elsewhere because of the design of the building and the places we need connections. So right now I was going to use belden...
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