 Pure
Silver Conductor
Pure silver is the best material for high-speed transmission due to
its excellent electrical conductivity which is far superior to high-purity
copper. However, the price of silver continues to rise making
it one of the rare metals.
For the core of FTVS-510, 5N jewelry grade pure silver, which is far better
than industrial grade, is used. After being melted in a ceramic crucible,
it is molded into 15mm diameter round bars. It is further reduced in diameter
by means of 19 repetitions of the cold rolling process.
Afterwards, the silver wire is further reduced to 1.05mm by a low-speed
drawing process. After the final rolling operation and mirror surface
finishing, stress and strain that is generated by the drawing process
is slowly removed by a lengthy annealing operation in a high-frequency
electric furnace filled with inactive gas to prevent the silver from combining
with oxygen. The completed ultra-pure silver wires are immediately packaged
in nitrogen gas and are safely stored until the next process.
Insulator
Although the conductor is the most important factor in signal transmission,
the insulator is also significant in enhancing the transmitting capabilities
of the cable.
Oyaide uses a combination of PE(Polyethylene) and FEP(Teflon) which provides
excellent electrical isolation and low electric permittivity. These help to enhance the transmitting performance.
For the first insulation layer, Oyaide selected PE (Polyethylene) which keeps
permittivity to a minimum and enhances the flexibility of the cable. This
layering of these different materials not only enhances the conductor's
electric capabilities but also attenuates internal vibration by altering
the resonance point.
Semiconductor layer
Although Teflon has great electric characteristics, it builds static charges
easily. Oyaide needed
a method to remove static electricity.
When signal flows in a cable, it generates ultra weak vibrations which
cause the discharge of an electric corona.
In order to solve this problem, Oyaide installed Carbon PE as a semiconductor
layer. By surrounding just the outside of the first insulation layer,
this semiconductor layer helps to discharge static buildup from the Teflon
layer in an orderly fashion.
Double-layered shield
The silent background of the FTVS-510 is provided by a double-layered
shielding structure. Double-layered shielding protects against broad band noise and
noise from micro-arcing.
Firstly, the semiconductor layer attenuates static noise
and electric micro waves. Then, the first layer of aluminium foil shielding protects against
high-frequency noise. The second is a silver plated mesh shielding, protects
against low-frequency noise. It also protects against high-frequency noise
by means of the skin effect on the silver plating.
Exterior
The beautiful and clear polyurethane sheathing has excellent mechanical strength
and always maintains a stable level of hardness without being affected
by temperature change. It can also be used outdoors because polyurethane cuts UV. Moreover, due to its high shock absorption and
degree of elasticity, polyurethane provides powerful isolation from vibrations.
| Conductor |
1.05mm 5N 99.9995% pure silver |
| Insulation |
Teflon skin layer + polyethylene foam |
| Shield |
Copper foil + silver plated copper
(Braid rate over 95%) |
| Exterior |
Polyurethane UV Cut |
| Resistance |
21 Ω/km |
| Capacitance |
56.5 pF/m |
| Attenuation |
23.1 dB/km |
| Impedance |
75 Ω |
| Diameter |
8 mm |
| Length |
1~50m, unterminated |
| Weight |
200g every 1m |
|
