Grounding for Gable end bracket & mast.
On Aug 4, 8:36*am, "Szczepan Bialek" wrote:
*"Michael Coslo" ...
Szczepan Bialek wrote:
*"Michael Coslo" wrote
...
Szczepan Bialek wrote:
The was the additional question: "And what with the "natural"
insulations: the ice and the wet?
Sometimes are on your dipoles an ice or water.
They should melt/evaporate in the places where are picks of the
voltage.
Is it observed?
Are you assuming that because there is high voltage, there is current
induced heating?
Bill Miller calls it "the transverse current". Electrons must displace
perpendicular to the antenna surface in AC.
In insulators are the electric losses.
Voltage does not translate diresctly to heat.
Is a quantum effect current flow, and does heat emit from the process? If
it isn't heat induced, the effect is almost certainly ionization.
No heat only in superconductors. In gold is lower than in aluminium.
In insulated antena are the transverse current and the displacement
current.
The all are facts. Should be easy to observe.
Some topics ago somebody analised the antenna temperature.
The end of the dipole should be the hottest.
Have you any observations in this subject?
Aside from analysis, has anyone measured this effect?
Of course. The antennas on animalls have temperature rise below 15C.
Is it to be expected in highly efficent antennas, or just inneficient ones
in which there is substantial heating already?
Is this assuming that the heat if given off is enough to raise the
temperature surrounding th eantenna above 0deg C?
I do not know. I am asking you (antenna owners).
Working antenna is hotter than at rest. Which part of the dipole is the
hottest?
S*
the center part is the hottest.
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