GB872780A - Improvements in or relating to the sealing of electrical conductors passing through apertures - Google Patents

Improvements in or relating to the sealing of electrical conductors passing through apertures

Info

Publication number
GB872780A
GB872780A GB3852356A GB3852356A GB872780A GB 872780 A GB872780 A GB 872780A GB 3852356 A GB3852356 A GB 3852356A GB 3852356 A GB3852356 A GB 3852356A GB 872780 A GB872780 A GB 872780A
Authority
GB
United Kingdom
Prior art keywords
ceramic
sprayed
pins
conductor
dec
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.)
Expired
Application number
GB3852356A
Inventor
Walter Chandler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB3852356A priority Critical patent/GB872780A/en
Publication of GB872780A publication Critical patent/GB872780A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H01B17/303—Sealing of leads to lead-through insulators
    • H01B17/305—Sealing of leads to lead-through insulators by embedding in glass or ceramic material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Insulating Bodies (AREA)
  • Resistance Heating (AREA)

Abstract

872,780. Mounting terminal; metal-tovitreous or ceramic seal carrying conductors through partitions. PLESSEY CO. Ltd. Dec. 4, 1957 [Dec. 18, 1956], No. 38523/56. Classes 36 and 38 (1). An electrical conductor passing, with clearance, through a hole in a body, is secured in position by filling the space between the conductor and the wall of the hole with a hardsetting insulating material, e.g. mica-loaded shellac or sintered ceramic, applied by spraying. As shown, a support-plate 1 for a three-pin plug has holes 3 in which conductor pins 2 are positioned while the hard-setting insulating material is sprayed into the space around the pins from each side in turn. The walls of the holes may be flared outwardly to assist penetration of the sprayed material. The body is of heat-resistant material having a low thermal coefficient of expansion, e.g. metal or alloy, laminated glass sheet, silicone-bound mica, or ceramic, or it may be of phenol-formaldehyde or other plastic. The pins 2 are of a conducting material also having a low thermal coefficient of expansion such as high-nickel stainless steel, or for high temperatures they may be of molybdenum or molybdenum disilicide with or without an addition of alumina. They may each have an annular groove 4, or have recesses or a circumferential ridge, or be roughened to increase adhesion of the sprayed material. If the sprayed material is ceramic it is preferably covered by a waterproof coating of silicone varnish or ceramic glaze.
GB3852356A 1956-12-18 1956-12-18 Improvements in or relating to the sealing of electrical conductors passing through apertures Expired GB872780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3852356A GB872780A (en) 1956-12-18 1956-12-18 Improvements in or relating to the sealing of electrical conductors passing through apertures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3852356A GB872780A (en) 1956-12-18 1956-12-18 Improvements in or relating to the sealing of electrical conductors passing through apertures

Publications (1)

Publication Number Publication Date
GB872780A true GB872780A (en) 1961-07-12

Family

ID=10404038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3852356A Expired GB872780A (en) 1956-12-18 1956-12-18 Improvements in or relating to the sealing of electrical conductors passing through apertures

Country Status (1)

Country Link
GB (1) GB872780A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257579A (en) * 1991-06-14 1993-01-13 Du Pont Pin-header.
CN106098112A (en) * 2016-07-19 2016-11-09 江苏华光电缆电器有限公司 HTGR Helium fan electrical penetration and processing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257579A (en) * 1991-06-14 1993-01-13 Du Pont Pin-header.
GB2257579B (en) * 1991-06-14 1995-09-20 Du Pont Pin-header
US5518427A (en) * 1991-06-14 1996-05-21 E. I. Du Pont De Nemours And Company Pin header
CN106098112A (en) * 2016-07-19 2016-11-09 江苏华光电缆电器有限公司 HTGR Helium fan electrical penetration and processing method thereof
CN106098112B (en) * 2016-07-19 2023-10-13 江苏华光电缆电器有限公司 Electrical penetration piece of high-temperature gas cooled reactor main helium fan and processing method thereof

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