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iWire,

That may have come across wrong, I am not saying there is no good info at that site but my point is to look at any source of info with a suspicious mind.

Certainly true.

Clearly that site pushes the AMP compression solution even though UL says a purple twister is OK and there are now small aluminum terminals made for pig tailing copper onto AL conductors.

Aronstein pushed his own method, and documented this to CPSC,
which CPSC rejected in writing, pointing to the (AMP) crimping method,
and also CPSC would not lend support directly to any method.

I don't think AMP advertises on the site, could have missed it, of course.
I don't think anybody but Dan Freidman advertises here.
I looked again, you can search for AMP and King, but these are not by the manufactuer, just technicians offering services that include these products.
I did see a dozen neat text ads by other home inspector services.
That Freidman home inspection is what this site is about.
Dan Freidman's inspection services are plastered everywhere.
I never thought there were that many things to inspect for.
( We had an AHIT home inspector class meeting in our house for several years, and I set up 7 electrical items for rejection, just for their students)

I wrote to AMP , and they explained their seminiar and the equipment.
Man! way too pricey for a small time electrician fixing residential wiring.
Still seems like a good approach.
The POCO uses that method, and I've seem very few failures.

I have used King several times, and several times used Aronstein's method.

King Industries has a connector. 3 set screws, alloy body, pregreased.
These are about $2.50 each.

I like the King connector, but still the #12 is under a screw and subject to the 'cold flow'. I am not comfortable with that, but it seems to work.

I did not use King last time, because they were not available, except by mail order, here. I opted for the Aronstein method, with thorough Alum to Alum wraps, just as prescribed.

I prefer the Aronstein method, for which he offers experimental evidence.
I have done simple experiements along the lines of his, and had results that go in the same direction. Mine were only short term overloads, but I could make joints heat to failure, and wirenuts melt. His experiments were long term, and more rigorous and documented. He presented his to CPSC, and included them in his paper at the IEEE. I was a member of IEEE for a long time, and their orgainzation is very professional about their papers.

Sorry about being so wordy. Glad to read your comments.
I have more reading to do when I get back to Memphis.
This is a big technical field, and a very serious activity.
Got to keep the eyes open.
 
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