US Electrical Code
Practical question for grounding of devices on roof tops: what size of the wire to use for grounding? Recent US Electrical code (2008) recommends for residential low-rise buildings size 6 or 4 connected to a standard copper grounding rod.
Read more about this topic: Ground (electricity)
Famous quotes containing the words electrical and/or code:
“Few speeches which have produced an electrical effect on an audience can bear the colourless photography of a printed record.”
—Archibald Philip Primrose, 5th Earl Rosebery (1847–1929)
“Motion or change, and identity or rest, are the first and second secrets of nature: Motion and Rest. The whole code of her laws may be written on the thumbnail, or the signet of a ring.”
—Ralph Waldo Emerson (1803–1882)