FIELD: electricity.
SUBSTANCE: insulating device (600) includes housing part (104) comprising a first surface element (602) extending between a first surface end (604) and a second surface end (606). First surface end (604) determines surface size (608) in first cross-section. Second end of the surface defines surface size (610) in the second cross-section. Surface size in second cross-section is smaller than surface size (608) in first cross-section. Housing part comprises second surface element (612) passing between third surface end (616) and fourth surface end (617). Third end of the surface defines surface size (618) in the third cross section. Fourth end of the surface defines surface size (620) in the fourth cross-section. Surface size in fourth cross-section is smaller than surface size in third cross-section. Insulating device comprises flange part (110) having flange wall (224). Flange wall comprises first interface section (628) that engages first surface element and second interface section (640) that engages second surface element of housing part (104).
EFFECT: invention provides high degree of seal assembly.
28 cl, 9 dwg
