Provided are methods for extending the life of in-service electrical cable having polymeric insulation, comprising injecting into the cable a dielectric gel formulation containing: (a) SiH endblocked polydiorganosiloxane (H(R.sub.2SiO).sub.x(R.sub.2Si)H); (b) polydiorganosiloxane endblocked with unsaturated carbon-carbon functionality; (c) hydrosilylation catalyst suitable to cure (a) and (b); and (d) at least one organoalkoxysilane functional additive (e.g., anti-oxidant-based alkoxysilane, voltage stabilizer-based alkoxysilane, hindered amine light stabilizer (HALS)-based alkoxylsilane, UV absorber-based alkoxysilane, etc.), wherein (a) and (b) are cured post-injection into a non-flowable gel, and wherein (d) diffuses into the insulation. The methods may further comprise a hydrolysis/condensation catalyst compatible with the hydrosilylation catalyst so as not to interfere with the cure of (a), (b) and (c), and/or be compatible with optional siloxane crosslinkers, and/or with optional hydrosilylation inhibitors.

A rodent repellent fiber optic cable includes an outer jacket, one or more optical fibers, and a repellent electrostatically bonded to at least one component of the cable. The one or more optical fibers extend longitudinally through an interior of the cable. The repellent is preferably an olfactory stimulant, such as menthol, configured to repel rodents. In various embodiments, the cable also includes one or more separators and/or a sheath. In embodiments that employ separators, at least one optical fiber is wrapped in, or otherwise surrounded by a separator. In embodiments that employ a sheath, the sheath surrounds an assembly of the cable's internal components.

A rodent repellent cable includes a jacket, a transmission means for facilitating transmission of electrical current or data, and a repellent bonded to at least one component of the cable. A method of manufacturing the rodent repellent cable includes electrostatically bonding a repellent to one or more components of the cable and adding the jacket around the internal components of the cable. The repellent is preferably an olfactory stimulant configured to repel rodents. Prior to adding the jacket around the internal components, the method may also include wrapping, enclosing, or otherwise surrounding one or more of the transmission means with a separator and/or wrapping, enclosing, or otherwise surrounding an assembly of internal components with a sheath. Additionally, prior to adding the jacket around the internal components, an assembly of internal components may be passed through a cooling apparatus to cool the assembly to a pre-determined temperature.

A rodent repellent fiber optic cable includes an outer jacket, one or more optical fibers, and a repellent electrostatically bonded to at least one component of the cable. The one or more optical fibers extend longitudinally through an interior of the cable. The repellent is preferably an olfactory stimulant, such as menthol, configured to repel rodents. In various embodiments, the cable also includes one or more separators and/or a sheath. In embodiments that employ separators, at least one optical fiber is wrapped in, or otherwise surrounded by a separator. In embodiments that employ a sheath, the sheath surrounds an assembly of the cable's internal components.

A rodent repellent cable includes a jacket, a transmission means for facilitating transmission of electrical current or data, and a repellent bonded to at least one component of the cable. A method of manufacturing the rodent repellent cable includes electrostatically bonding a repellent to one or more components of the cable and adding the jacket around the internal components of the cable. The repellent is preferably an olfactory stimulant configured to repel rodents. Prior to adding the jacket around the internal components, the method may also include wrapping, enclosing, or otherwise surrounding one or more of the transmission means with a separator and/or wrapping, enclosing, or otherwise surrounding an assembly of internal components with a sheath. Additionally, prior to adding the jacket around the internal components, an assembly of internal components may be passed through a cooling apparatus to cool the assembly to a pre-determined temperature.

Provided are methods for extending the life of in-service electrical cable having polymeric insulation, comprising injecting a dielectric enhancement fluid composition into the cable, wherein the composition comprises: (a) one or more organoalkoxysilane functional additives (voltage stabilizer-based, hindered amine light stabilizer (HALS)-based, and/or UV absorber-based); and (b) a catalyst suitable to catalyze hydrolysis and condensation of (a), the injected composition providing for rapid initial permeation of (a) into the insulation, and extended retention of subsequent condensation products of (a) in the insulation. Additionally provided are innovative silyl functional ferrocenes (e.g., containing a ferrocene moiety and a silyl function hydrolysable to silanol) having utility as functional voltage stabilizing additives in the methods.

A communications cable (11) is provided with a pliant sleeve (12, 21, 31) to allow it to be more easily inserted into a conduit. One form of the sleeve (12) has hook (14) and loop (15) connected to each other so that the sleeve (12) can engage the cable (11). Another form of the sleeve (21) is spring-loaded to engage the cable (11). In a third form of the sleeve (31) has an adhesive (33) which attaches the sleeve (31) to the cable (11).

A rodent repellent cable has an outer protective jacket for housing the cable's internal components. The internal components include at least a means for facilitating transmission of electrical current or data, and a repellent bonded to at least one component of the cable. The means for facilitating transmission of electrical current or data include, but are not limited to, wires and optical fibers. The cable may include additional internal components, such as one or more separators and a sheath. The repellent is configured to repel rodents, based on a negative olfactory stimulus when the rodents are subjected to the repellent. This will deter rodents from chewing on wire or cable containing the repellent, which will significantly reduce the incidence of fires of undetermined origin and rodent-inflicted damage to wiring systems universally.

A wire exterior body and an exterior-covered wire harness in which damage by an attaching member is prevented are provided. A wire exterior body (3) to be mounted on the outer periphery of an electric wire (wire harness) (2), the wire exterior body being formed of a resin sheet that is bent, includes a plurality of wall parts (4) extending along an extending direction of the electric wire and forming an accommodating part (5) that accommodates the electric wire. Among the plurality of the wall parts (4), at least one wall part (upper lid wall part (45)) has a through-hole (47), penetrating in a thickness direction of the resin sheet, into which an attaching member (61) attachable to a vehicle body is inserted, and a groove (a lower surface groove (48) or an upper surface groove (49)) in which a thickness of the resin sheet is reduced is formed on a part around the through-hole (47) on at least one surface of an upper surface (45c) and a lower surface (45d) facing the thickness direction.

Aspects of the technology relate to rotational electromechanical systems, in which data and or power are supplied to components while one part of the system is rotating relative to another part of the system. Repeated rotation may create strain on or otherwise cause the cables to intermittently or permanently fail. A helical cable management system is provided that enables full rotation to the extent permitted. One or more cables are wound in a helical shape around the axis of rotation, which distributes the deformation of the cable along the helical length. Rotation in one direction causes the helix diameter to increase, while rotation in the other direction causes the helix diameter to decrease. A structure is used to maintain the distance between helical turns, while permitting the increase and decrease of the helix diameter. This reduces the overall strain on the cables, which can significantly extend their useful lifetime.