Home |
Search |
Today's Posts |
#6
|
|||
|
|||
Aluminum foil capacitance hat
Richard Clark wrote:
Hi Roy, If I recall history and physics correctly (and simultaneously), house wiring failed through cold flow, a property of aluminum to relax under a one-time application of pressure (impulse rather than sustained pressure) and thus the joint failed. The failure raised resistance, resistance raised temperature, temperature raised flames.... no more common use of aluminum in house wiring. When I put in a new service entrance in 1979, it was after the problems with ordinary aluminum house wiring were discovered and it was no longer being used. But the service entrance cable I got was aluminum. The service box connectors are marked as approved for both aluminum and copper wiring, and have a compression fitting which doesn't give the aluminum anywhere to flow. Generous application of NoAlOx or a similar grease was also required for proper installation, so that's what I did. It's been completely trouble-free for nearly 30 years now. So it was, and is, possible to use aluminum wire. But it has to be done correctly, with due regard to its vagaries. Roy Lewallen, W7EL |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
OT...Wanna Tin Foil Hat? | Shortwave | |||
Where can I get aluminium foil (0.5 cm thickness) for HomebrewButterfly Capacitor | Homebrew | |||
Who Needs a Tin Foil Hat? | Shortwave |