Guest
On Wednesday, 29 November 2017 21:01:49 UTC, pf...@aol.com wrote:
NT:
The unified electrical standard didn't complete here until about 1960. It was a slow business.
> Our house was built in 1890, first wired in 1913, and substantially expanded (both the house and the wiring) in 1928. In 2005, the main service was upgraded and grounded wiring extended throughout the house to all branch-circuits and GFCI devices installed in all 'wet' locations - must have cost a fortune!
1928 wiring in 2005 would be unthinkable here. Haven't seen anything that old since one exceptional commercial property in the 80s. It was an instant inspection condemnation.
> Squigs - as I leaned to call the through-wire devices you are referring to - are fine if they can be screwed down as a terminal strip (and they are approved in that application. But as individual joints, they are quite dangerous.
I'm not buying it at all. We use them all the time.
> Wire nuts, properly installed, are far tougher and make a far better connection than a single screw bearing on two conductors in a small opening. Twist together first (good mechanical connection), cut square or on a very slight angle, then install the correctly sized wire-nut, very tight. I have done (easily) tens of thousands, and I carried at least five different sizes on any given job. Were signal-wiring involved, that would be four more sizes.
They were banned here in '55, but I lack further info on that.
NT
NT:
That's just funny. In UK we use those choc blocks almost entirely, and wire nuts are banned here. We have less electrical fires then the US as a result.
That is what happens when one is a first-user of a technology. Electrical wiring from central (regulated) suppliers on a common scheme began in the US in/around 1911, with major cities joining in the grid through the next ten years or so. Rural Electrification began in earnest in 1936 and by 1940, the 'grid' was available to the entire US.
Regulated mains power to a common standard was not made available to the common people in GB until starting in 1926, making GB about 15 years behind the US, and much slower on the uptake moving forward. Pretty much everything done in the US was brand-new for the first 15 years or so - and the rest of the world learned from it.
The unified electrical standard didn't complete here until about 1960. It was a slow business.
> Our house was built in 1890, first wired in 1913, and substantially expanded (both the house and the wiring) in 1928. In 2005, the main service was upgraded and grounded wiring extended throughout the house to all branch-circuits and GFCI devices installed in all 'wet' locations - must have cost a fortune!
1928 wiring in 2005 would be unthinkable here. Haven't seen anything that old since one exceptional commercial property in the 80s. It was an instant inspection condemnation.
> Squigs - as I leaned to call the through-wire devices you are referring to - are fine if they can be screwed down as a terminal strip (and they are approved in that application. But as individual joints, they are quite dangerous.
I'm not buying it at all. We use them all the time.
> Wire nuts, properly installed, are far tougher and make a far better connection than a single screw bearing on two conductors in a small opening. Twist together first (good mechanical connection), cut square or on a very slight angle, then install the correctly sized wire-nut, very tight. I have done (easily) tens of thousands, and I carried at least five different sizes on any given job. Were signal-wiring involved, that would be four more sizes.
They were banned here in '55, but I lack further info on that.
NT