Others continued to use cloth cord throughout the 30 s.
When were cloth electrical cords used.
The other basic electrical wiring system of this era was a bare electrical house wiring system commonly known as knob and tube.
By the 40 s only certain things like clothes irons retained cloth cords.
It was standard insulation at the time and managed to keep homes electrical currents running for many years.
In the 1930s a quicker installation method was developed.
Some companies switched as soon as neoprene became available.
Even the old knob and tube wiring that predates cloth wiring was perfectly adequate at the time.
Since it wasn t at all a mandatory thing the changeover is spread out over many years.
In researching etcoflex use of asbestos in wire insulation i have not found confirmation that asbestos was used.
Aluminum electrical wiring types click to enlarge any image.
The old style ballast and its wire could have dated from the 1950 s.
It was 1 of 2 popular methods of residential wiring in its time.
Many power systems installed prior to 1950 were built with cloth covered electrical wire.
The braided fabric wire insulation was found on a 1960 s fluorescent light ballast while the plastic wire was used in the branch circuit wiring for the light where that ballast was employed.
Cord plugs and switches for electric lighting 1900 1940 s these rayon covered cords are the safe and modern versions of the old silk wrapped cord.
Nonmetallic sheathed cable was born which incorporated a rubberized fabric coating sheath much like knob and tube wiring but here the hot and neutral wire were run together in this one sheathing.
The plugs and switches are also specially designed specifically to work with these cords in the rewiring of all types of lamps.
You can also find some original rubber cordage from the very late 20 s.