Site Utilities: Vaults - Hand holds

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Fordean

Senior Member
Location
New Jersey
Occupation
Electrical Contractor
When Running 6 duct bank, IN concrete. 400 feet. Is their a requirement for a Underground vault or hand holds.

Example: 1 every 200 feet.



Or a 2 conduit without concrete . Hand hold requirements. Is their a code. Or is this up to engineering.

If its only when spec'ed. ?
 

charlie b

Moderator
Staff member
Location
Lockport, IL
Occupation
Retired Electrical Engineer
There is no limit imposed by the code. Many of my clients impose their own limits, and it is generally 500 feet. We are bidding on one project that will require a separation of over 1000 feet between two manholes. The limit that an engineering review might reveal has to do with cable pulling tension.
 
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