Title:
CROSSARM OF TRANSMISSION POLE
Document Type and Number:
Japanese Patent JP3212763
Kind Code:
B2
Abstract:
PURPOSE: To use crossarms as insulators by combining a plurality of arm members made by coating shafts out of polymeric materials with an electrical insulating material into a truss construction to constitute crossarms, joining each one end of the crossarms to transmission lines with a pin together and fitting transmission lines, and joining the other ends to the body of a transmission pole with a pin.
CONSTITUTION: Arm members are made by coating shafts 15 out of polymeric materials with an electrical insulating material 18 having flaps 18a, and both ends are capped with end joining metallic parts 16 and 17. A plurality of arm members are combined into truss construction, and horizontal-direction arm members 2a and 2b are constituted. Transmission lines 4a and 4b are fitted to a pin contact 31 where each one end joining metallic part 16 of the arm members 2a and 2b is joined with a pin together. Besides, a pin contact 32 where the other end joining metallic parts 17 are joined with a pin together is fitted to the body 1 of a transmission pole. As a result of this, it becomes possible to use the arm members as insulators and lower the height of the transmission pole.
Inventors:
Nobuhiro Sato
Noboru Isohata
Noboru Isohata
Application Number:
JP14115893A
Publication Date:
September 25, 2001
Filing Date:
May 21, 1993
Export Citation:
Assignee:
Tomoe Corporation
International Classes:
E04H12/08; E04H12/24; H02G7/00; (IPC1-7): H02G7/00; E04H12/08; E04H12/24
Attorney, Agent or Firm:
Teruo Aoki