Flexible cable with structurally enhanced conductors
AssigneeSouthwire Company
InventorRichard Temblador
Life of this patent
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Abstract
In an electrical cable of the type having an outer sheath enclosing a conductor assembly comprising a plurality of insulated conductors disposed within a binder, the binder having a crush resistance for protecting the insulated conductors, an improvement in which a strength enhancer is applied such that the binder can be removed without decreasing a crush resistance of the electrical cable.
Claims18
An electrical cable having a metallic outermost sheath, the electrical cable comprising:
- a conductor assembly including at least one insulated conductor disposed within the outermost sheath,
- the insulated conductor consisting of an outermost surrounding layer without an additional protective covering about the outermost surrounding layer, the outermost surrounding layer having a lubricant, the outmost surrounding layer being in direct contact with the outermost sheath substantially along the length of the at least one conductor and the outermost sheath;
- wherein the lubricant is included in an amount such that the combination of the outermost surrounding layer and the lubricant replacing any further protective covering between the at least one conductor and the outermost sheath such that the outermost surrounding layer maintains the crush and impact resistance as required by UL 1569 second edition, revision of Sep. 10, 1998 without the electrical cable having the further protective covering between the conductor and the outermost sheath.
An apparatus for protecting an electrical cable assembly including one or more insulated conductors, each insulated conductor consisting of a single outer surrounding layer, the apparatus comprising:
- an outermost metallic sheath surrounding the electrical cable assembly;
- and
- the one or more insulated conductors, in which each single outer surrounding layer is in direct contact with the outermost metallic sheath substantially along the length of the electrical cable assembly and the outermost metallic sheath;
- and
- a strength enhancer formed of a high molecular weight silicone oil having a concentration by weight of at least 9% or a lubricant material including 0.25-0.85% of erucamide and a stearyl erucamide and applied in an amount such that the outermost metallic sheath and the electrical cable assembly meet the crush and impact resistance requirements in UL 1569 second edition, revision of Sep. 10, 1998 without any additional layer.
Dependencies are inferred from the claim text.