On 1/1/2017 1:14 PM, Mike Sherman ----- Original Message ----- wrote:
I have knob and tube left on, I think, one circuit in my 99 year old
house. It's on my list to be replaced soon. It has some impressive
soldered splices, but charm has its limits. I agree that it's a bear
to unearth and replace.
My experience with the insulation is that it is now brittle. Replacing
a receptacle, for example, causes the insulation to fracture, in turn
causing me to encase it in shrink tube.
Many structures cannot be repaired or renovated without substantial
upgrades to meet modern codes and standards.
At one time, my son and I lived in a home built in 1838. The electrical
outlets had four prongs; two horizontal ones on the outside edge and two
vertical ones – conventionally 110 V – centered inside them.
That old.
http://www.philadelphia-electricians-how-to.com/2011/08/antique-tandem-and-parallel-receptacle.html
One day I was changing a light bulb in the hallway when the fixture
swiveled, twisting the insulation on the wiring, which crumbled and
wrapped around itself, shorting the wiring to the fixture.
Considering how old and dry the wood was, and how little time I had left
to react, I jumped in the air to avoid a fixture to ground shock, and
ripped the whole thing out of the ceiling.
I replaced the fixture and wiring to the nearest nearest junction with
newer – and advised the landlord. Recent aerial pictures of the
neighborhood show evidence of substantial remodeling of the old dwelling.
Cortland Richmond
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