Wire?
Options
Brianinsocal
Registered Users Posts: 13 ✭
What is the difference between 600v dc and 1000v/2000v? I am going to run 20' 12 awg wire from my 100 watt solar panel to small my solar set up.
Thanks so much
Thanks so much
Comments
-
Brianinsocal wrote: »What is the difference between 600v dc and 1000v/2000v? I am going to run 20' 12 awg wire from my 100 watt solar panel to small my solar set up.
Thanks so much
In the US, the maximum allowed residential PV system DC voltage is 600V, so any higher insulation value gets you better mechanical strength (thicker insulation) but no usable improvement in performance.
Commercial systems can go up to 1000V to ground or 2000V from + to - on a bipolar array system. NEC requires that when two wires, one +1000V to a reference point and the other -1000V to the same reference point, but overall ungrounded, are run in the same raceway they both must be insulated to 2000V.SMA SB 3000, old BP panels. -
Thanks Inetdog.
Categories
- All Categories
- 243 Forum & Website
- 150 Solar Forum News and Announcements
- 1.4K Solar News, Reviews, & Product Announcements
- 191 Solar Information links & sources, event announcements
- 919 Solar Product Reviews & Opinions
- 256 Solar Skeptics, Hype, & Scams Corner
- 22.5K Solar Electric Power, Wind Power & Balance of System
- 3.6K General Solar Power Topics
- 6.7K Solar Beginners Corner
- 1K PV Installers Forum - NEC, Wiring, Installation
- 2.1K Advanced Solar Electric Technical Forum
- 5.5K Off Grid Solar & Battery Systems
- 438 Caravan, Recreational Vehicle, and Marine Power Systems
- 1.1K Grid Tie and Grid Interactive Systems
- 652 Solar Water Pumping
- 829 Wind Power Generation
- 626 Energy Use & Conservation
- 626 Discussion Forums/Café
- 303 In the Weeds--Member's Choice
- 91 Construction
- 124 New Battery Technologies
- 108 Old Battery Tech Discussions
- 3.8K Solar News - Automatic Feed
- 3.8K Solar Energy News RSS Feed