the communication cable appearance should be wrapped a layer of aluminum foil, to protect and shield the cable line. This kind of aluminum foil is called cable aluminum foil, it is usually made of 1145 pure aluminum, by continuous casting and rolling, cold rolling, cutting and completely annealing, cut into small volume according to the users’ required length and supply to cable foil composite plant, add plastic film on aluminum foil surface, cut into small roll disk supply to cable factory.
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Advantage of the Aluminium Foil for cables shield
In electrical cables, aluminium foil is an essential component providing long-term protection. It also insulates against magnetic and radio frequency emissions. Used in fibre-optic cables, aluminium foil acts as a 'tracer' to enable testing of the integrity of cable links.
In electrical cables, aluminium foil helps give long-term insulation against moisture and attack from naturally occurring corrosive elements found above and below ground.
Aluminium foil also acts as an insulator against the magnetic and radio frequency emissions associated with electrical cables.
As a sheath for fiber-optic cables, aluminium foil uses its electrical conductivity to act as a “tracer” to enable testing of the integrity of cable links – as well as helping to provide the long-term protection every cable needs.
This kind of composite aluminum foil has the advantages of light quality, good protective shielding effect. cable aluminum foil takes advantage of sealing and shielding effect of aluminum foil, after coating plastic film on one-sided or two-sided, consisting of aluminum – plastic composite foil, used as a cable shield. Cable aluminum foil is required as less surface oil quantity, no holes, high mechanical properties, the overall quality is not high, but the length requirement is very strict. According to the communication cable industry standards, the mechanical properties of cable foil is: 0.1, 0.15, 0.20 mm thickness, cable foil strength is not less than 54 mpa, the elongation is not less than 15%.
Aluminium cabel foil Airtightness and shielding properties,then laminated with plastic film in one or two sides,it is used as the cable shield,