Mistake in 2020 master prep?(Not Mike holt)

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Dsg319

Senior Member
Location
West Virginia
Occupation
Wv Master “lectrician”
Question is this.
Solar photovoltaic system dc circuits on or in one and two family dwellings shall be permitted to have a maximum voltage of no greater than (blank).

There answer was 1000volts.

My answer is 600volts. Reference is 690.7

Which is right?
 
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