NEMA WC 58 : 2008

Foreword
Section 1 - GENERAL
 1.1 Scope
      Portable Cables 2,000 Volts or Less
      Portable Cables 2,001-5,000 Volts (100% Insulation Level)
      Portable Cables 0-25,000 Volts (100% Insulation Level)
      Mine Power 2,001-25,000 Volts (100% and 133% Insulation
       Level)
 1.2 General Information
 1.3 Information to be Supplied by User
Section 2 - CONDUCTORS
 2.1 Physical and Electrical Properties
 2.2 Conductor Size Units
 2.3 Conductor DC Resistance per Unit Length
 2.4 Conductor Diameter
Section 3 - PORTABLE SINGLE AND MULTIPLE CONDUCTOR POWER CABLE
 3.1 Scope
 3.2 DC Systems
 3.3 Single-Conductor Cables, Nonshielded, 2,000 Volts or Less
 3.4 Type W And G Two-Conductor Cables, 2,000 Volts or Less
 3.5 Type W, G, G-Gc and G-CGC. Three-And Four-Conductor
      Cables, 2,000 Volts or Less
 3.6 Type W and G, Five- and Six-Conductor, 2,000 Volts or Less
 3.7 Type PG, Two- and Three-Conductors with Grounding Conductor,
      2,000 Volts or Less
 3.8 Type PCG, Two- and Three-Conductors with Grounding Conductor
      and Two Control Conductors, 2,000 Volts or Less
 3.9 Type G, Three-Conductor Round with Grounding Conductors
      2,001-5,000 Volts
 3.10 Shielded Cable 25,000 Volts or Less
 3.11 Power Conductors
 3.12 Control And Ground-Check Conductors
 3.13 Grounding Conductors
 3.14 Stress Control Layer (Conductor Shield)
 3.15 Power Conductor Insulation
 3.16 Ground Check and Control Conductor Insulation
 3.17 Tapes and Braids
 3.18 Conductor Identification
 3.19 Shielding
 3.20 Conductor Assembly
 3.21 Jackets
 3.22 Completed Cable
Section 4 - CONSTRUCTIONS OF MINE POWER FEEDER CABLE
 4.1 Scope
 4.2 General Requirements
 4.3 Conductors
 4.4 Insulation
 4.5 Insulation Shielding
 4.6 Identification
 4.7 Conductor Assembly
 4.8 Jacket
 4.9 Outside Diameter
 4.10 Tests
Section 5 - SPECIAL CONSTRUCTIONS
 5.1 Portable Arc-Welding Cables
Section 6 - TESTING AND TEST METHODS
 6.1 Testing
 6.2 Tests on Samples
 6.3 Conductor Test Methods
 6.4 Test Samples and Specimens for Physical and Aging Tests
 6.5 Capacity and Power Factor Tests
 6.6 Accelerated Water Absorption
 6.7 Surface Resistance
 6.8 Thickness of Tapes
 6.9 Heat (Deformation) Distortion
 6.10 Heat Shock
 6.11 Cold Bend
 6.12 Hot Creep Test
 6.13 Solvent Extraction
 6.14 Volume Resistivity
 6.15 Stripping Test
 6.16 Retests for Tests Covered by 6.6 through 6.15 And 6.20
 6.17 Electrical Tests on Completed Cables
 6.18 Method Determining Permittivity (S.I.C.) and Dielectric
      Strength of Extruded Nonconducting Polymeric Stress
      Control Layers
Annexes
 A (Informative) Symbols and Abbreviations
 B (Normative) Definitions for Maximum Temperature of Conductors
   in Insulated Wire and Cable
 C (Normative) Emergency Overload Ratings for Insulated Cables
 D (Normative) ICEA Publications, ASTM, NEMA Standards and NFPA
 E (Informative) Shielding
 F (Informative) Minimum Bending Radius for Cables
 J (Informative) Voltage Test after Installation
 K (Informative) Additional Conductor Information

Applies to materials, construction, and testing of insulated cables used for the distribution of electrical energy in surface and underground mines and similar applications.