2003年5月7日 · Re: What is Hard Drawn Copper? Tom, Hard Drawn Copper is typically used for overhead distribution circuits on insulators and thus run straight. As pointed out, HD Copper is difficult to bend even in larger sizes where it is stranded. I don't know of any wholehouse house in my area that carries it since it would typically be a utility product.

2012年6月26日 · The panel board bus material for a project I am working on was specified as "Hard-drawn copper, 98 percent conductivity". I've done a lot of searching but I can't find any information about what this actually means. The manufacturer lists the following options for their bus material: Temp...

2005年3月9日 · 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.

2021年8月29日 · Hard drawn copper is all copper, it’s just in a more “raw” form. The wire we are used to using is “annealed” meaning they take hard drawn copper and work it with heat to make it softer and less stiff. The exchange is that annealed copper wire has 97% of the conductivity of hard drawn copper, but almost half the tensile strength, which relates to its ability to flex and …

2007年9月28日 · What is typically acceptable for use as an underground ground ring for bare, tinned copper conductor, hard or soft drawn? Thanks. Carl

2021年8月31日 · You can get hard drawn copper conductors and it is very stiff as compared to normal copper conductors. I agree. i have seen that stuff and it is stiff.

2013年10月1日 · The conductors shall not be smallerthan 8 AWG copper or 6 AWG aluminum or copper-cladaluminum.Exception: Conductors supplying only limited loads of asingle branch circuit ? such as small polyphase power,controlled water heaters, and similar loads ? shall not besmaller than 12 AWG hard-drawn copper or equivalent.So is it 8AWG or 12AWG if the ...

2011年5月26日 · Just out of curiosity, does anyone know the tensile strength of a 12 awg solid conductor? I have a UBS of 336.9 lbs for hard drawn #12 copper. add: 261.6 lbs for medium hard drawn 197.5 lbs for soft or annealed

2022年10月28日 · Soft-drawn copper wire is prone to stretching and breakage if used to span distance. Life would be hard on sparkies if building wire used hard-drawn copper or copper-clad steel.

2009年4月7日 · Another option is to go with soft annealed copper. I believe most the stiffness experienced with the XLPE 19-strand that you mentioned is because it is hard-drawn copper.