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Lead Sheath
Gravita
USA INC is leading Company in Lead & Lead Product Manufacturing that
provides / supplies Good quality Lead. Gravita USA INC Lead is suitable
for Lead Sheath Making.
We are also in business of importing Lead as a scrap from Lead Sheath
Wire Making companies. We import various raw materials such as Lead Acid
Battery Scrap (ISRI- RAINS), Battery Plates (ISRI -RAILS), All sort of
Lead Scrap, Raw / Re-melted Lead Bullion, Lead Ore/ Lead Concentrate
/Lead Scrap from Lead Sheath etc. from various countries.
Lead was one of the first materials to be used to provide an impervious
sheath on electric cables.
Lead Sheath Cable
A Lead Sheath is available on many types of wire and cable insulations.
This sheath is completely moisture proof and very durable. Where both
mechanical strength and moisture resistance are required, a combination
of Lead Sheath and armor can be used. Underground ducts and wet
locations are typical areas where Lead-Sheathed cables are used.
Lead has the major advantage that it can be applied to the cable core in
unlimited lengths by extrusion at temperatures which do not damage even
the most sensitive conductors (optical fibers) or insulating materials
(paper or plastics). Lead is pliable and so can withstand the several
coiling, uncoiling, handling and bending operations involved during the
later manufacturing stages and installation of the cable. A lead sheath
can be readily soldered (again at low temperatures) when cable lengths
need to be jointed or new cables installed. With modern screw-type
continuous extruders, un jointed lengths of submarine power cables as
long as 100 kilometers have been produced. |