JPS6214787B2 - - Google Patents
Info
- Publication number
- JPS6214787B2 JPS6214787B2 JP55123506A JP12350680A JPS6214787B2 JP S6214787 B2 JPS6214787 B2 JP S6214787B2 JP 55123506 A JP55123506 A JP 55123506A JP 12350680 A JP12350680 A JP 12350680A JP S6214787 B2 JPS6214787 B2 JP S6214787B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- discharge
- current
- deterioration
- seconds
- 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
Links
- 208000028659 discharge Diseases 0.000 claims description 38
- 240000005572 Syzygium cordatum Species 0.000 claims description 24
- 235000006650 Syzygium cordatum Nutrition 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 19
- 230000006866 deterioration Effects 0.000 claims description 18
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 10
- 238000009413 insulation Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000002250 progressing effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55123506A JPS5748669A (en) | 1980-09-08 | 1980-09-08 | Method for decision of degradation of cable by water tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55123506A JPS5748669A (en) | 1980-09-08 | 1980-09-08 | Method for decision of degradation of cable by water tree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5748669A JPS5748669A (en) | 1982-03-20 |
| JPS6214787B2 true JPS6214787B2 (enExample) | 1987-04-03 |
Family
ID=14862302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55123506A Granted JPS5748669A (en) | 1980-09-08 | 1980-09-08 | Method for decision of degradation of cable by water tree |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5748669A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01318301A (ja) * | 1988-06-20 | 1989-12-22 | Fujitsu Ltd | サーキュレータ間接続構造 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6893911B2 (ja) * | 2016-03-03 | 2021-06-23 | 住友電気工業株式会社 | 絶縁体の絶縁性能の評価方法 |
-
1980
- 1980-09-08 JP JP55123506A patent/JPS5748669A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01318301A (ja) * | 1988-06-20 | 1989-12-22 | Fujitsu Ltd | サーキュレータ間接続構造 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5748669A (en) | 1982-03-20 |
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