EP 0388133 A2 19900919 - Suspension insulator.
Title (en)
Suspension insulator.
Title (de)
Hängeisolator.
Title (fr)
Isolateur de suspension.
Publication
Application
Priority
JP 6686489 A 19890317
Abstract (en)
Disclosed is a suspension insulator having a shed (2) with several ribs (4) formed concentrically and integrally on the lower face and a head (3) integrally formed at the central portion on the upper face of the shed(2), with a metal cap (5) being fixed on the head (3) and a metal pin (7) being fixed in the cavity of the head (3). The insulator is designed to have dimensions in such a way that the following equations [1] to [3] are satisfied: 0.8 h < l [1] 2.5</= L/H</= 4.5 [2] D</= L [3], where, h is the height of the ribs (4); l is the interval between the ribs (4); L is the creepage distance as measured along the surface of the shed (2), D is the diameter of the shed (2); and H is the connection pitch of a suspension insulator unit forming an insulator string.
IPC 1-7
IPC 8 full level
H01B 17/06 (2006.01); H01B 17/04 (2006.01); H01B 17/42 (2006.01); H01B 17/50 (2006.01)
CPC (source: EP)
H01B 17/04 (2013.01); H01B 17/42 (2013.01)
Designated contracting state (EPC)
FR GB IT
DOCDB simple family (publication)
EP 0388133 A2 19900919; EP 0388133 A3 19910731; EP 0388133 B1 19951115; EG 19239 A 19941030; JP H02244514 A 19900928; JP H077612 B2 19950130
DOCDB simple family (application)
EP 90302638 A 19900313; EG 16990 A 19900314; JP 6686489 A 19890317