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公开(公告)号：CA1139830A
公开(公告)日：1983-01-18
申请号：CA355777
申请日：1980-07-09
Applicant: NORTHERN TELECOM INC
Inventor： HINES WILLIAM W , CWIRZEN CASIMIR Z
Abstract: PROTECTOR MODULE BASE ASSEMBLY WITH AN EXTERNAL SPARK GAP An electrical surge arrester module having a back-up external spark gap in its base assembly comprising an insulator plate perforated at points intermediate a terminal contact surface in said base assembly and a conductive plate at ground potential when said surge arrester module is in use.
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