Manholes for electrical cables enetring building?!
Manholes for electrical cables enetring building?!
(OP)
Is there any standard which specifies the requirement of manhole before the underground power cables enters building Main switch board room?Is this is standard industrial practice?In one of the Industrial control room building project i am doing in middle-east, designer/consultant has proposed such man holes.I have seen manholes for underground telephone and fibre optic cables before it enters building.Cables specified as12Nos.4Corex 240 Sq.mm Cu/XLPE/SWA/PVC, 0.6/1kV grade.Distance from trasformer secondary to main switch board room approximately 50mtrs.






RE: Manholes for electrical cables enetring building?!
It also depends on who owns the cable. In some cases, its the utilities practice to provide the underground service to a point outside the building and then splice onto the customer's service entrance conductors. The utility will then specify a manhole for this purpose.
RE: Manholes for electrical cables enetring building?!
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If we learn from our mistakes I'm getting a great education!
RE: Manholes for electrical cables enetring building?!
Care should be taken sealing this tray against water penetration from the manhole.
RE: Manholes for electrical cables enetring building?!
Alan
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"It's always fun to do the impossible." - Walt Disney