Abstract: An improved weatherhead and insulator, and methods for using and installing same, for improved insertion and installation of wiring/cabling to new or existing structures. The weatherhead includes a replaceable disc insulator that may be initially installed or replaced as part of a new weatherhead, or replaced in an installed weatherhead if damaged without passing the end of the service through the insulator. The open spaces through which the service passes are accessible from the top of the insulator. Where the cap is metallic, additional insulation may be inserted at the top of the insulator. The insulator is configured to prevent relative movement between the insulator and collar during installation.

Abstract: 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.

Abstract: An improved insulator insert, and methods for using and installing same, for improved insertion and insulation of wiring/cabling to new or existing structures employing a multi-part construct and an anti-rotation lip to secure the insulator insert.

Abstract: The present disclosure relates to an improved service entrance head that allows for replacement of the service entrance head without requiring that the wiring/lines within the service head be severed.