GUIDE FOR FIELD TESTING OF SHIELDED POWER CABLE SYSTEMS USING VERY LOW FREQUENCY (VLF) (LESS THAN 1 HZ)
Institute of Electrical & Electronics Engineers
1. Overview
2. Normative references
3. Definitions, acronyms, and abbreviations
4. Safety
5. Very low frequency (VLF) ac testing
6. Conclusions
Annex A (informative) - Bibliography
Annex B (normative) - Wave shapes of VLF ac voltage
testing voltages
Annex C (informative) - Typical defects in fluid-filled
and extruded cable systems
Annex D (informative) - Effect of initial increase in
voltage (ramp up)
Annex E (informative) - Figures of merit and range of
available tangent delta and differential tangent
delta (tip up) data
Annex F (informative) - Comments on data interpretation
and performance
Annex G (informative) - Tan delta results of new cable
systems
Annex H (informative) - Development of utility/application
specific criteria
Annex I (informative) - Tangent delta criteria used outside
North America
Specifies VLF withstand and other diagnostic tests and the measurements that are performed in the field on service-aged shielded medium and high-voltage cables rated 5 kV through 69 kV with extruded and laminated insulation.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
| Supersedes |
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