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Thread: Streetcar Overhead Wire Clearance

  1. #1
    Join Date
    Nov 2011
    Location
    North Little Rock, AR, USA
    Posts
    11

    Streetcar Overhead Wire Clearance

    Does anyone know the distance ABOVE a streetcar overhead wire (catenary) that must be clear? We want to build a bridge over an existing line.

  2. #2
    Join Date
    Jul 2006
    Location
    Roughly 5346 miles from Earls Court
    Posts
    2,661
    I don't know, but they're only 600-700V DC, so there's very little needed for electrical clearance. Bigger question is what does any right-of-way agreement or municipal code say and how the building would affect use of the line; you can't be lifting girders over an active line, for one.

    (It's common for road bridges to be as low as 15' with the wire attached to the underside and separated from it by wood planks. Unfortunately, I don't have any photos handy.)

  3. #3
    Join Date
    Jul 2007
    Location
    Clark County, NV
    Posts
    1,198
    I would GUESS that the owners of the lines would have more restrictive clearances than the electrical voltage requires. Maintenance issues may be more important than insulation issues.

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