Running AC & DC Power Cables in the same cable tray
- Thread starter nayyar
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petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- engineer
Re: Running AC & DC Power Cables in the same cable tray
Since you are talking 50 Hz I would guess you are asking about something in a foreign land.
In the US, there is no seperation required by code as long as the insulation on all cables exceeds the highest voltage UNLESS the 24V circuits are power limited. Than there are some special rules. But since you used the word "power" to describe the DC cables, presumably the DC wiring is not power limted.
If separation is required, they have to be in seperate raceways, or in the same raceway with a metal barrier down the center of the raceway.
<edited to correct spelling and grammer errors>
[ March 15, 2005, 07:43 AM: Message edited by: petersonra ]
Since you are talking 50 Hz I would guess you are asking about something in a foreign land.
In the US, there is no seperation required by code as long as the insulation on all cables exceeds the highest voltage UNLESS the 24V circuits are power limited. Than there are some special rules. But since you used the word "power" to describe the DC cables, presumably the DC wiring is not power limted.
If separation is required, they have to be in seperate raceways, or in the same raceway with a metal barrier down the center of the raceway.
<edited to correct spelling and grammer errors>
[ March 15, 2005, 07:43 AM: Message edited by: petersonra ]
charlie tuna
Senior Member
- Location
- Florida
Re: Running AC & DC Power Cables in the same cable tray
uses permitted:
services
feeders
branch circuits
signal circuits
control circuits
cables rated over 600 volts.
1)over 600 volys must be type mc.
2)over 600 volts are separated from the cables rated 600 volts or less by a solid fixed barrier of material comparable with the cable tray.
uses permitted:
services
feeders
branch circuits
signal circuits
control circuits
cables rated over 600 volts.
1)over 600 volys must be type mc.
2)over 600 volts are separated from the cables rated 600 volts or less by a solid fixed barrier of material comparable with the cable tray.
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