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Thread: Manhole choices

  1. #1
    Join Date
    Oct 2009
    Posts
    5

    Manhole choices

    Hello all,

    Just a general opinion request on manhole selection. I generally dislike using a large manhole for small ductbanks, and would prfer to use a 3x3 or 4x4 pullbox with a (30" and 36" respectively) manhole cover. Would it be sensible to use cable racks in such a small box? How difficult would it be for the electrician to organize the cables given limited room (especially in the 3x3).

    Bulk of my projects involves sharing space with underground piping, so it's beneficial to limit the size of undergorund boxes.

    Also, anyone got any good pics showing cable training on the cable racks in a manhole (600V or less).

  2. #2
    Join Date
    Oct 2009
    Posts
    5
    Quote Originally Posted by JMLewis View Post
    Hello all,

    Just a general opinion request on manhole selection. I generally dislike using a large manhole for small ductbanks, and would prfer to use a 3x3 or 4x4 pullbox with a (30" and 36" respectively) manhole cover. Would it be sensible to use cable racks in such a small box? How difficult would it be for the electrician to organize the cables given limited room (especially in the 3x3).

    Bulk of my projects involves sharing space with underground piping, so it's beneficial to limit the size of undergorund boxes.

    Also, anyone got any good pics showing cable training on the cable racks in a manhole (600V or less).
    Also, would it be useful to specify custom (smaller size) octagonal/4-way vaults to aid cable management?

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