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FR2312128A1 - Loss-free connection of high voltage cables - uses oil based grease to fill voids between cover layers - Google Patents

Loss-free connection of high voltage cables - uses oil based grease to fill voids between cover layers

Info

Publication number
FR2312128A1
FR2312128A1 FR7615228A FR7615228A FR2312128A1 FR 2312128 A1 FR2312128 A1 FR 2312128A1 FR 7615228 A FR7615228 A FR 7615228A FR 7615228 A FR7615228 A FR 7615228A FR 2312128 A1 FR2312128 A1 FR 2312128A1
Authority
FR
France
Prior art keywords
oil based
loss
high voltage
based grease
cover layers
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.)
Granted
Application number
FR7615228A
Other languages
French (fr)
Other versions
FR2312128B3 (en
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.)
Raychem Corp
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Publication of FR2312128A1 publication Critical patent/FR2312128A1/en
Application granted granted Critical
Publication of FR2312128B3 publication Critical patent/FR2312128B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures
    • H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
    • H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only

Landscapes

  • Gas Or Oil Filled Cable Accessories (AREA)

Abstract

The method is for connecting cables or cables to equipment where the voltage may exceed 1KV. The method is intended to prevent the formation of voids between semiconducting and insulating layers when a discontinuity occurs as in a cable junction and the consequent ionization of a trapped gas and breakdown of the cable. The cable sheathing (4) when cut at such a junction forms a step, the void (8) appearing in a triangular cross-section annulus between the insulation and the heat-shrunk outer sleeving (5). The technique specifies the filling of this void with an oil based grease. The grease should be able to 'wet' the surfaces concerned and have a viscosity between 40 and 130 Po and have a resistivity of about 108 OHM/CM. The surface tension should be between 10 and 35 dynes/cm.
FR7615228A 1975-05-20 1976-05-20 Loss-free connection of high voltage cables - uses oil based grease to fill voids between cover layers Granted FR2312128A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57928275A 1975-05-20 1975-05-20

Publications (2)

Publication Number Publication Date
FR2312128A1 true FR2312128A1 (en) 1976-12-17
FR2312128B3 FR2312128B3 (en) 1979-02-16

Family

ID=24316291

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7615228A Granted FR2312128A1 (en) 1975-05-20 1976-05-20 Loss-free connection of high voltage cables - uses oil based grease to fill voids between cover layers

Country Status (1)

Country Link
FR (1) FR2312128A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003993A1 (en) * 1983-04-06 1984-10-11 Raychem Corp Electrical stress control apparatus and method
US4487994A (en) * 1981-11-09 1984-12-11 Cable Technology Laboratories, Ltd. Electrical cable joint structure and method of manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487994A (en) * 1981-11-09 1984-12-11 Cable Technology Laboratories, Ltd. Electrical cable joint structure and method of manufacture
WO1984003993A1 (en) * 1983-04-06 1984-10-11 Raychem Corp Electrical stress control apparatus and method
US4551915A (en) * 1983-04-06 1985-11-12 Raychem Corporation Method for terminating a high voltage cable

Also Published As

Publication number Publication date
FR2312128B3 (en) 1979-02-16

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Legal Events

Date Code Title Description
ST Notification of lapse