Title:
CURRENT-LIMITING FUSE AND DROPOUT FUSE HOLDER FOR EXCHANGEABLE SAFETY-DEVICE MOUNT
Document Type and Number:
Japanese Patent JPH06196084
Kind Code:
A
Abstract:
PURPOSE: To provide a small, replaceable current limiting fuse for a safety device mount by winding a fuse element of a predetermined length spirally on the radial support surfaces of a nonconductive support in an insulating fuse cartridge. CONSTITUTION: Conductive terminal caps 72, 74 are provided at the top and bottom of the current-limiting fuse body 52 of a fuse holder as closures respectively. Inside the caps, the spider 76 of a nonconductive support structure is placed along a longitudinal axis 51. Support surfaces 102 having arms 100 are radially and protrusively formed on the spider 76. The molten element 78 of the fuse is spirally wound on the support surfaces 102. Holes are bored in the element 78, contracted parts 192 are formed along its longitudinal direction, and the element 78 and the support surfaces 102 are engaged with each other between the adjacent contracted parts 192. Further, a shutting and insulating member 82 such as pure quartz sand is packed around them. Thereby a current limiting fuse for a compact, low-cost replaceable safety device mount is obtained.
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Inventors:
SUTEIIBUN POORU HASURAA
JIYON RATSUPU
SUTEIIBUN POORU JIYONSON
JIYON RATSUPU
SUTEIIBUN POORU JIYONSON
Application Number:
JP23152493A
Publication Date:
July 15, 1994
Filing Date:
September 17, 1993
Export Citation:
Assignee:
COOPER POWER SYST
International Classes:
H01H9/10; H01H9/32; H01H71/00; H01H31/12; H01H85/042; H01H85/045; H01H85/05; H01H85/06; H01H85/08; H01H85/10; H01H85/165; H01H85/22; H01H85/30; H01H85/38; H01H85/60; (IPC1-7): H01H85/08; H01H71/00
Attorney, Agent or Firm:
Shoichi Ui (4 others)