JPS54129337A - Enclosed switchboard - Google Patents
Enclosed switchboardInfo
- Publication number
- JPS54129337A JPS54129337A JP3602678A JP3602678A JPS54129337A JP S54129337 A JPS54129337 A JP S54129337A JP 3602678 A JP3602678 A JP 3602678A JP 3602678 A JP3602678 A JP 3602678A JP S54129337 A JPS54129337 A JP S54129337A
- Authority
- JP
- Japan
- Prior art keywords
- board
- relief
- pressing
- retainer plate
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Patch Boards (AREA)
Abstract
PURPOSE: To enable a prevention from the pressure rise in the board to a prescribed level, by means of enclosing a relief port, which is partially provided in the enclosed switchboard, with a relief board that is formed in a manner with its one end swingably fixed and its another end slidably constructed.
CONSTITUTION: A relief opening 3, provided in the ceiling part 2 of an enclosed switchboard 1, is enclosed by a relief board 5. One end of said relief board 5 is swingably supported by a pin with hinges 4 used, and another end is fixed by a retainer plate 7. The retainer plate 7 comprises a mounting unit 7a to the ceiling part 2 and a pressing unit 7b for pressing the relief board 5, with the mounting unit 7a fixed by a bolt 6 to the ceiling part 2 and the pressing part 7b slidably pressing to retain an end edge of the relief board 5 from upward. In such constitution, an uprising of pressure within the board expands the relief board 5 to outward of the board, and the relif board 5, if the part pressed by the retainer plate 7 goes excessively backward from a lap dimension H, is made opening to release the internal pressure.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3602678A JPS54129337A (en) | 1978-03-30 | 1978-03-30 | Enclosed switchboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3602678A JPS54129337A (en) | 1978-03-30 | 1978-03-30 | Enclosed switchboard |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54129337A true JPS54129337A (en) | 1979-10-06 |
Family
ID=12458203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3602678A Pending JPS54129337A (en) | 1978-03-30 | 1978-03-30 | Enclosed switchboard |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54129337A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0340701A (en) * | 1989-07-04 | 1991-02-21 | Mitsubishi Electric Corp | Switchgear provided with bursting mechanism |
JP2010098839A (en) * | 2008-10-16 | 2010-04-30 | Toshiba Corp | Device for pressure-release of gas-insulated apparatus |
-
1978
- 1978-03-30 JP JP3602678A patent/JPS54129337A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0340701A (en) * | 1989-07-04 | 1991-02-21 | Mitsubishi Electric Corp | Switchgear provided with bursting mechanism |
JPH0777481B2 (en) * | 1989-07-04 | 1995-08-16 | 三菱電機株式会社 | Switchgear with pressure relief mechanism |
JP2010098839A (en) * | 2008-10-16 | 2010-04-30 | Toshiba Corp | Device for pressure-release of gas-insulated apparatus |
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