WebOct 14, 2009 · Use hard drawn for long overhead lines that require higher strength. You probably won't know the difference in the field unless you have a sample of both in the same gauge. Burying copper in concrete for grounding whether soft drawn or hard drawn is perfectly acceptable and is common practice. Just make sure your concrete mix doesn't … WebLearn How to Draw Hard, step by step video drawing tutorials for kids and adults. You can choose one of the tutorials below or send us a request of your favorite character and …

Hard , Medium, Soft drawn copper? Mike Holt

WebMar 9, 2005 · Re: Hard , Medium, Soft drawn copper? The power company around the inner City of Minneapolis / St. Paul has a bazillion miles of hard drawn running pole to pole. The #4 solid that I occasionally run exposed is soft drawn (as is the #6 & #8) that I use for hooking up parts of a dwelling grounding electrode system. WebNov 2, 2024 · At 20°C, the resistance per km of hard drawn copper for telephone and telegraphic applications ranges from 3.615 to 3.657 ohms, with a breaking load of 230 kg. The molecular structure of cold drawn copper is disturbed, and the mechanical strength is reduced. The usage of the copper conductor in its purest form is limited in electrical ... final bastion life gear

Standard Classification for Temper Designations for Copper …

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