2/1 Shielded Substation Control Cable - 20/10 PE/PVC

This 2 AWG, 1-conductor (single conductor) shielded substation control cable is a heavy-duty utility cable engineered for demanding supervisory control, metering, and protective relaying circuits. Built to strict ICEA S-73-532 standards, it features a composite 20/10 PE/PVC insulation system and a high-performance copper tape shield. This construction provides exceptional dielectric strength and critical shielding against transient voltage surges and electromagnetic interference (EMI) typical in high-voltage substation switchyards.

Key Features of 2/1 Shielded 20/10 Substation Cable

• Heavy-Duty 20/10 Composite Insulation: The conductor is insulated with 20 mils of Natural Polyethylene (PE) for primary electrical strength and low dielectric loss, paired with a 10 mil Polyvinyl Chloride (PVC) outer skin layer for color coding and robust physical protection.

• Superior EMI/RFI Shielding: Wrapped with a helically applied 5-mil bare copper tape shield (minimum 20% overlap). This provides a low-resistance path to ground, suppressing dangerous high-frequency transients and induced magnetic/electrostatic currents caused by breaker operations and inductive switching.

• Utility-Grade Durability: Protected by a rugged, flame-retardant, and sunlight-resistant black PVC jacket. This enables versatile installation pathsapproved for wet or dry conditions, direct burial, open air, cable trays, troughs, or embedded conduit networks.

• Corrosion-Resistant Base: Features a premium Class B concentrically stranded bare copper conductor conforming to ASTM B3 and B8, balancing structural stability with industrial installation flexibility.

Common Applications

• Substation Control Networks: Transmitting digital or analog signals between control houses, switchyard equipment, marshalling kiosks, and terminal cabinets.

• Protective Relaying & Telemetry: Connecting current transformers (CTs), potential transformers (PTs), and circuit breaker trip circuits where false signals from ambient electrical noise must be prevented.

• Utility Metering & Monitoring: Long-run data interconnects and power monitoring loops operating in high thermal or electrical stress zones near extra-high-voltage (EHV) busses.

• Industrial Heavy Duty Control: General-purpose, low-impedance control functions in power generation plants, chemical refineries, and heavy manufacturing facilities.

Technical Specifications

• Conductor Size: 2 AWG

• Number of Conductors: 1 (Single Conductor)

• Conductor Material: Bare Soft Annealed Copper (Class B Stranded)

• Insulation System: 20 mils PE / 10 mils PVC (Total 30 mils)

• Shielding: 0.005″ (5 mil) Helical Bare Copper Tape Shield

• Jacket: Flame-Retardant, Moisture- & Sunlight-Resistant Black PVC

• Voltage Rating: 600V (Available up to 1000V for heavy inductive breaking profiles)

• Temperature Rating: 75C Wet or Dry

• Compliance Standards: ICEA S-73-532 / NEMA WC 57, ASTM B3 & B8, RoHS Compliant

Technical Note: Rocketing high-voltage substation standards (especially 138 kV and above) often require copper tape shields to be grounded at multiple points (at minimum both ends) to mitigate high-frequency transient voltages produced by switchyard arcs, rather than grounding at only the source end to prevent low-frequency ground loops. Verify grounding specs against the specific utility engineering layout.

CABLE TYPE: 2 AWG / 1-Conductor Shielded Substation Control Cable

DISCLAIMER: The technical information provided is for general reference only. Utility substation construction guidelines are rigorous and highly specific. Always consult with a licensed power utility electrical engineer and comply with ICEA, NEMA, and National Electrical Safety Code (NESC) regulations prior to system deployment.