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3. IEEE: 400-2012 - IEEE guide for field testing and evaluation of the insulation of shielded power cable systems rated 5 kV and above (2012)
4. Cigre Working Group B1.28. On-site partial discharge assessment of HV and EHV cable systems. Cigre Technical Brochure 728 (2018)
5. Cigre Working Group B1.04. Maintenance for HV cables and accessories. Cigre Technical Brochure 279 (2005)