A grommet is disclosed. The grommet includes a tubular portion including a frustoconical segment and a first circular segment. The frustoconical segment includes a at least one opening within a frustoconical surface, where the at least one opening forms one or more flanges. The tubular portion is configured to be inserted into a cabin through a cabin opening while forming an interference fit between the frustoconical segment and the first circular segment with the cabin opening to prevent ingress of water into the cabin. The one or more flanges are configured to be compressed upon insertion in the cabin opening, and expanded after reaching an inner side of the cabin. The present grommet with a flexible and cost-effective self-lock design connects to an external roof harness.

Systems, devices, and methods including one or more isolation breaks connected between one or more first portions of a first wire and one or more second portions of a second wire, wherein the one or more isolation breaks prevent moisture intrusion between the one or more first portions of the first wire and the one or more second portions of the second wire; an inner housing; an upper compressing plate; a lower compressing plate; a grommet and an outer housing sized to receive the inner housing; where the one or more isolation breaks are connected between the one or more first portions of the first wire and the one or more second portions of the second wire prior to compressing the grommet between the upper compressing plate and the lower compressing plate.

An aspect of the present disclosure provides a shield 300 for a terminal 206 of a high-voltage electrical device 200 comprising a first shield element 301 having at least one axial opening 304 and at least one lateral opening 305, and at least one second shield element 302, 303, wherein the at least one second shield element 302, 303 is movable between a first shield position and a second shield position for selectively opening and closing at least one of the at least one axial opening 304 and the at least one first lateral opening 305. Further aspects provide a high-voltage electrical bushing 200 comprising a shield 300 according to the aspect above, and a transformer 100 comprising said high-voltage electrical bushing 200. Yet a further aspect provides a method 400 for installing a high-voltage bushing having a shield according to the aspect above.

An improved service entrance head including (a) a head or cap, (b) cap support or collar, (c) segmented conduit mounting and (d) an insulating service wire support or wire separator, that allows for replacement of an installed service entrance head with the service passing through the collar and separator without requiring that the service be severed. Both the collar and the wire separator may be segmented so that they can be removed from a position surrounding the service and replaced. Methods are disclosed.

Systems, devices, and methods for inserting a wire through apertures in an inner housing, an upper plate, a lower plate, and a grommet; connecting the wire via an isolation break; and inserting the inner housing into an outer housing; where the inner housing compresses the grommet between the upper plate and the lower plate to form a seal about the metal isolation break.

A protection device for an electrical apparatus to realize a degree of protection includes: a front part, which has a cutout, through which a partially insulated cable or bar is insertable; and a rear part, from which the non-insulated part of the cable or bar is extendable into an interior of the electrical apparatus. A channel passes through the front part and the rear part. A stop is arranged within the channel, on which the insulation jacket of the insulated part of a cable or bar may abut.

A bushing for a metal clad medium voltage switchgear includes: a hollow body. The body is made of polyamide. A first end of the body connects to a compartment of the medium voltage switchgear. A second end of the body connects to a T-off and pin. In an embodiment, a body portion extends from the first end of the body to the second end of the body. The body portion is circular shaped about an axis extending from the first end of the body to the second end of the body.

A method of manufacturing a cable seal is provided, the method including the steps of providing a cable having a protective outer jacket of a non-PVC material; preparation of the protective outer jacket of the cable such as to promote adhesion with a sealant; and overmolding the outer jacket with a sealant. As a result, a sealing interface is formed between the jacket and the sealant.

The invention relates to a bushing element for providing an electrically conductive connection through a separator, comprising an element body for positive or at least substantially positive insertion into a bushing receptacle of the separator, the element body comprising a continuously electrically conductive conducting portion for providing the electrically conductive connection and at least one electrically insulating portion for insulating the conducting portion against an inner surface of the bushing receptacle that encloses the conducting portion peripherally at least in part. The invention further relates to a system that is composed of a separator and a bushing element for providing an electrically conductive connection through the separator, the separator having a bushing receptacle into which the bushing element is inserted in a positive or at least substantially positive manner.

A grommet which is configured to cover a periphery of a wire harness includes a panel mounting portion which is configured to be mounted to a panel. The panel mounting portion includes a base portion which is formed in an annular shape, a seal portion which is formed on the base portion and is configured to be in close contact with a surface of the panel, and a groove portion which is formed between the base portion and the seal portion along a peripheral direction of the panel mounting portion. A plurality of reinforcing ribs are configured to connect the base portion and the seal portion and are arranged in the peripheral direction in the groove portion, and the reinforcing ribs are inclined with respect to a mounting direction of the panel mounting portion to the panel.