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#102259 - 12/13/05 07:48 PM Cable under a roadway
Cinner Offline

Registered: 12/01/04
Posts: 77
Loc: Kelowna, B.C., Canada
How deep would you have to bury a 5000 volt acwu cable under a roadway. Does anyone know what section or rule pertains to this in the cec?

2014 / 2011 NEC & Related Books and Study Guides
#102260 - 12/14/05 11:18 AM Re: Cable under a roadway
dougwells Offline


Registered: 05/03/03
Posts: 1226
Loc: kamloops BC Canada
Section 36 deals with HV installations but I can only see where it mentions in a building , not underground distribution at all. But it says it has to be marked every 3 meters

#102261 - 12/14/05 04:50 PM Re: Cable under a roadway
YORKIE Offline

Registered: 11/24/05
Posts: 20
Loc: abbotsford.bc
Section 12
Rule 12-012 Appendix B and table 53.This says 1000mm. If you have any doubts check with your local inspector

#102262 - 12/14/05 05:05 PM Re: Cable under a roadway
renosteinke Offline
Cat Servant

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
I don't know beans about the Canadian code... and I consider 480v to be "high voltage."

However, I suspect my local utility would require such a line to be buried at least 5 ft. deep, especially if there was no other protection (such as pipe).

#102263 - 06/20/06 09:45 AM Re: Cable under a roadway
mikesh Offline

Registered: 06/07/06
Posts: 614
Loc: Victoria, BC, Canada
From Table 53 conductors over 750 volts must be buried a minimum of 1 meter or 39 1/2 inches for the metrically challenged.
High voltage is over 750 volts so the 480 volts is "low" voltage.


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