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Copper rod
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12 years 11 months ago #1224 by Archived Forum Admin
Copper rod was created by Archived Forum Admin
I was recently asked by a copper wire manufacturer if anyone is using less than EPT grade copper for wire used in electrical conductivity. Is anyone aware of this? It was suggested that this was imported copper.
RdKing
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12 years 11 months ago #1225 by Archived Forum Admin
Replied by Archived Forum Admin on topic Re: Copper rod
Hello,
Electrical wire and cable specifications disallow the use of copper with conductivity less than that for annealed Electrolytic Tough Pitch Copper (ETP). See specifications CDA 110 ETP Copper, ASTM B 187, and ASTM B 152 copper. If hard copper is utilized as in the case in a very few circumstances, the electrical conductivity is 97% of the annealed Electrolytic Tough Pitch Copper (ETP) conductivity but regardless it is still ETP copper.
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com
519 641- 3212
Electrical wire and cable specifications disallow the use of copper with conductivity less than that for annealed Electrolytic Tough Pitch Copper (ETP). See specifications CDA 110 ETP Copper, ASTM B 187, and ASTM B 152 copper. If hard copper is utilized as in the case in a very few circumstances, the electrical conductivity is 97% of the annealed Electrolytic Tough Pitch Copper (ETP) conductivity but regardless it is still ETP copper.
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com
519 641- 3212
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