DC voltage minimum spacings

[berzerk]

Hello, my question is...

Is there a minimum spacings (clearance) chart for DC voltages? I know there is for AC voltage in the NEC book, but looking for one for DC voltage. I have a 1200VDC application and need to know the clearance i need to ground.

 

[mwm1752]

Hello, my question is...

Is there a minimum spacings (clearance) chart for DC voltages? I know there is for AC voltage in the NEC book, but looking for one for DC voltage. I have a 1200VDC application and need to know the clearance i need to ground.

I see nothing that designates AC from DC -- are your referring to earth or a grounded conductor
Voltage, Nominal. A nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class (e.g., 120/240 volts, 480Y/277 volts, 600 volts).

225.60 Clearances over Roadways, Walkways, Rail, Water, and Open Land
225.61 Clearances over Buildings and Other Structures
Services Exceeding 1000 Volts, Nominal

 

[berzerk]

I'm talking about what the clearance i'd need to a steel bracket (ground). For say, 600VAC through air it is 1", but what is it for 1200VDC?