BS 3288-4:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Insulator and conductor fittings for overhead power lines Locking devices for ball and socket couplings of string insulator units: dimensions and tests
Hardcopy , PDF
05-08-2004
English
31-05-1989
Foreword
Committees responsible
Section One - General
1. Scope
2. Object
3. Plan of the standard
Section Two - Dimensions and general rules
4. Shape of the locking device
5. Standard dimensions of the split-pins (standard and
alternative type)
6. Other dimensions given for guidance of manufacturing
only
7. Dimensions of the W-clip
8. Method of using the locking devices
Section Three - Tests
9. Classification of tests
10. Tests in Group I (qualification tests)
11. Tests in Group II (sample tests)
12. General rules for the visual examination a)
13. General rules and tests for b), c) and d)
14. Re-test procedure
Appendix A - Gauges for W-clips
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