Underground Electrical Duct Banks
Cross-references point to the standards that now own the topic after the October electrical rewrites: MV cable to medium-voltage-cables, energy storage to battery-energy-storage-systems, service grounding to grounding-and-bonding, lightning to lightning-protection.
Showing changes from Rev 3
to Rev 4
in Underground Electrical Duct Banks.
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title: Underground Electrical Duct Banks
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description: >
When to use: Concrete-encased and direct-buried conduit duct banks for site electrical and communications distribution between buildings, transformers, substations, switchgear, generators, and exterior equipment, including the raceway configuration, concrete encasement and reinforcement, cover and separation, manhole and handhole interfaces, building entries, and the proving of the installed system.
− Not intended for: Interior raceways and above-grade conduit (see [[sync/raceways-and-conduit]]), direct-buried cable installed without conduit, the conductors and cables pulled through the duct bank (see [[sync/conductors-and-cables]]), grounding and bonding of the duct bank and its structures (see [[sync/grounding-and-bonding]]), medium-voltage cable and termination specification (see [[sync/medium-voltage-switchgear]]), and duct banks in hazardous (classified) locations, which require application-specific seals beyond the scope of this standard.
+ Not intended for: Interior raceways and above-grade conduit (see [[sync/raceways-and-conduit]]); direct-buried cable installed without conduit; the conductors and cables pulled through the duct bank (see [[sync/conductors-and-cables]]); grounding and bonding of the duct bank and its structures (see [[sync/grounding-and-bonding]]); medium-voltage cable and termination specification (see [[sync/medium-voltage-cables]]); and hazardous (classified) locations, whose seals and entries are specified in [[sync/electrical-hazardous-locations]].
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…592 unchanged lines
default: "1 year from substantial completion"
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