Topband: twisted house wiring

[Brian Pease]

I installed a vanity in a old house in New London, CT.  The BX only had 
2 wires for the original light & 2-prong outlet. Fortunately the jacket 
was grounded although it had never been connected to the old fixture.  I 
needed the ground for the new GFI outlet.

On 2/22/2017 5:06 PM, MICHAEL ST ANGELO wrote:
> BX cable is still required in New York City. I had to use it when I lived in Queens.
>
> How did the metal wrapper get hot? Was current passing througgh it? The BX I had included a ground wire; maybe the earlier BX used the wrapper as the ground.
>
> Mike N2MS
>
>
>> On February 22, 2017 at 3:45 PM K1FZ-Bruce  <k1fz at myfairpoint.net> wrote:
>>
>>
>>
>>
>> Live near a housing development with many tenants. The high line on the road is about 20  feet diagonally from my attic.  Getting a lot of noise even with my house main breaker off.
>> Appears to be induced into the attic wiring.
>>
>> Question. Anyone tried some form "twisted pair with green wire"  house wiring to reduce noise ?
>> If Yes, how did it work ?
>> Wiring laws vary from state to state.   If anyone has something that worked, then I can ask local electrical law enforcement about it.
>>
>> Years ago they had a BX cable   . It was twisted wires inside a metallic wrapper.  When I was very young they used to think the metal wrapper got hot and started house fires.
>>
>> 73
>> Bruce-k1fz
>> http://www.qsl.net/k1fz/beverage_antenna.html
>>   
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