IEC 60506:1975
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Switching impulse tests on high-voltage insulators.
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
23-07-2013
English - French, Russian
01-01-1975
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Contents
Foreword
Preface
Section One - General
Clause
1. Scope
2. Object
3. Switching impulse characteristics of insulators
4. Values of switching impulse voltages
5. Classification of the test
Section Two - Definitions
6. Insulator
7. Dry or wet switching withstand voltage
8. 50 % dry or wet switching impulse flashover
voltage
Section Three - Requirements for Tests
9. Test technique
10. Standard switching impulse voltage
11. Standard atmospheric conditions
12. Correction factors for atmospheric conditions
12.1 Air density correction factor Kd
12.2 Humidity correction factor Kh
13. Condition of the insulator
14. Methods of mounting
14.1 Standard mounting arrangements
14.2 Mounting arrangement simulating service
conditions
15. Procedure for verifying the switching impulse
withstand voltage
15.1 Dry switching impulse test
15.2 Wet switching impulse test
Figures
Applies to switching impulse tests on insulators intended for use on a.c. installations with highest voltage 300 kV and above. Defines switching impulse characteristics of insulators and prescribes the conditions under which the specified values of these characteristics shall be verified. Prescribes methods for switching impulse tests on insulators under standard conditions.
| Committee |
TC 36
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NEN 10506 : 1976 | Identical |
| UNE 21131:1980 | Identical |
| CEI 36-7 : 1998 | Identical |
| BS 3297-2:1993 | Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than 1000 V |
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