Traffic Control
Member
- Location
- Orlando Florida
Good morning forum,
I work in the traffic signalization industry. My main question today is regarding running low voltage and high voltage through the same conduit for rewire situations (traffic signal intersection rewiring). 725.31 says to classify safety control equipment as class 1 if the failure of the remote-control circuit or equipment introduces a direct fire or Life hazard. I would consider the failure of a traffic light as a life hazard. Am I correct?
Next, after I classify the traffic signal cabinet and other traffic signal parts as class 1, on traffic signal rewire situations, can I run a 24 volts DC low voltage wire in the same conduit as the 120VAC high voltage wire? We actually already do this with special composite cables (that contain many types of cables in one sheath/wrapper). 725.48 (B)(1) indicates that I can.
Thanks so much and I look forward to any replies and/or advice!
I work in the traffic signalization industry. My main question today is regarding running low voltage and high voltage through the same conduit for rewire situations (traffic signal intersection rewiring). 725.31 says to classify safety control equipment as class 1 if the failure of the remote-control circuit or equipment introduces a direct fire or Life hazard. I would consider the failure of a traffic light as a life hazard. Am I correct?
Next, after I classify the traffic signal cabinet and other traffic signal parts as class 1, on traffic signal rewire situations, can I run a 24 volts DC low voltage wire in the same conduit as the 120VAC high voltage wire? We actually already do this with special composite cables (that contain many types of cables in one sheath/wrapper). 725.48 (B)(1) indicates that I can.
Thanks so much and I look forward to any replies and/or advice!