with annular conductive contact 12 c inserted to present a conductive ring portion of the wall of cavity 45 a one alternative embodiment has no floors 506 and thereby allows connection of a conductive member to a lower portion of annular conductive contact 12 in this embodiment portion 502 has slot 504 formed in its upper side for insertion of conductive member 902 fig9 in this embodiment conductive member 902 forms electrical connection to annular conductive contacts 12 and presents screw holes 904 for attaching electrical wiring in one preferred sequence of construction portion 502 is formed and then annular conductive contacts 12 are inserted with an interference fit conductive portion 902 is soldered or welded to annular conductive contacts 12 conductive portion 902 may instead be connected to contacts 12 with only an interference fit or portion 902 may also be formed with contacts 12 as one piece fig7 depicts a portion 702 of housing 40 of outlet 20 according to a preferred embodiment of the present invention fig8 is a cross sectional depiction of the portion 702 depicted in fig7 the cross section taken along the direction marked u201c e u201d referring to fig7 and 8 a housing 40.