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Very low frequency (VLF) withstand and other diagnostic tests and measurements that are performed using VLF energization in the field on shielded power cable systems are described in this guide. Whenever possible, cable systems are treated in a similar manner to individual cables. Tables are included as an aid to identifying the effectiveness of the VLF ac voltage test for various cable system insulation problems. Keywords: cable fault locating, cable system testing, cable testing, condition assessment, dielectric spectroscopy, grounding, hipot testing, IEEE 400.2, partial discharge testing, proof testing, safety, tangent delta testing, very low frequency testing, VLF ac voltage testing.

Electric cables

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Guidance for the design and installation of cable raceway systems for all types of electric generating facilities is provided. Recommendations, methods, and best engineering practices for the design of cable raceway systems including selection of equipment, materials, and the configuration of raceway are described.

Electric cables --- Electric cables. --- Standards.

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Procedures and test voltage values for acceptance and maintenance testing of electric submersible pump (ESP) cable systems are presented. This recommended practice applies to cable systems rated 3 kV and 5 kV (phase to phase) and is intended only for this special-purpose cable. The intent is to provide uniform test procedures and guidelines for evaluation of the test results.

Electric cables. --- Submersible pumps.

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Basic factors and general considerations in selecting the class and means of neutral grounding for electrical generating plant auxiliary power systems are given in this guide. Apparatus to be used to achieve the desired grounding are suggested, and methods to specify the grounding devices are given. Sensitivity and selectivity of equipment ground-fault protection as affected by selection of the neutral grounding device are discussed, with examples.

Electric cables --- Fault location.

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Minimum requirements for the design, construction, manufacturing, testing, purchasing, and application of electric submersible pump (ESP) cable are presented. The cable is round or flat, with ethylene-propylene rubber insulation, nitrile jacket, ethylene-propylene diene monomer (EPDM) jacket or lead sheath, and armor. These cables are for voltages not exceeding 3 kV or 5 kV (phase to phase) and conductor temperatures not exceeding 140 ºC (284 ºF) for nitrile or a maximum of 232 ºC (450 ºF) for EPDM jacket or lead sheath cable. Conductors, insulation, barrier (optional), assembly with or without jacket, armor, requirements for testing by the manufacturer, and cable ampacity are all covered in the document.

Electric cables --- Submersible pumps. --- Insulation.