18/12 Unshielded Substation Control Cable – 15/10 PE/PVC

This 18 AWG, 12-conductor unshielded substation control cable is a multi-circuit cable engineered for utility and industrial environments requiring precise signal and lower-current control mapping. Built to strict ICEA standards, it features a specialized composite 15/10 PE/PVC insulation system designed for smaller gauge profiles. Because it is unshielded, it is optimized for multi-point secondary control loops and dense terminal cabinet routing where high-frequency electromagnetic interference (EMI) shielding is not required, offering excellent flexibility and an easy termination process.

Key Features of 18/12 Unshielded 15/10 Substation Cable

• Specialized 15/10 Composite Insulation: Each of the 12 conductors is insulated with 15 mils of Natural Polyethylene (PE) for dependable dielectric strength and low electrical loss, paired with a 10 mil Polyvinyl Chloride (PVC) outer skin layer for physical protection and color identification.

• Unshielded Optimization: Without the added bulk and rigidity of a copper tape or braided shield, this multi-conductor cable features an exceptionally small overall outer diameter and tight bending radius, making it incredibly easy to pull through congested conduit runs, cable trays, and complex terminal enclosures.

• Utility-Grade Durability: Protected by a rugged, flame-retardant, and sunlight-resistant black PVC jacket. It is fully approved for versatile installation paths, including wet or dry conditions, direct burial, open air, cable troughs, or embedded duct banks.

• Highly Flexible Conductor Base: Features premium Class B concentrically stranded bare copper conductors conforming to ASTM B3 and B8, balancing durable service life with high flexibility for tight terminal block terminations.

Common Applications

• Secondary Control Circuits: Consolidating lower-current monitoring, signaling, and control circuits from auxiliary panels, annunciators, and status indicator lights to main switchgear blocks.

• Station Service Control Panels: Routing interlocking control networks, remote circuit breaker position indicators, and auxiliary alarm lines within the substation control house.

• Multi-Circuit Control Loops: Ideal for low-current solenoid controls, status relays, and automated sequencing arrays where multiple discrete voltage pathways must span long physical distances.

• Industrial Automation & Control: General-purpose multi-conductor control loops and machinery automation links in power generation stations, wastewater treatment facilities, and industrial manufacturing plants.

Conductor Identification: ICEA E-1 Color Code Sequence

• Black, White, Red, Green, Orange, Blue, White/Black, Red/Black, Green/Black, Orange/Black, Blue/Black, Black/White

Technical Specifications

• Conductor Size: 18 AWG

• Number of Conductors: 12

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

• Insulation System: 15 mils PE / 10 mils PVC (Total 25 mils per conductor)

• Shielding: None (Unshielded)

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

• Voltage Rating: 600V

• Temperature Rating: 75C Wet or Dry

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

Technical Note: Note that this cable utilizes a 15/10 insulation profile (25 mils total) rather than the 20/10 profile common in heavier 14 AWG to 10 AWG substation cables, reflecting its smaller 18 AWG conductor base. Since this cable is unshielded, it should not be placed in the same tray or conduit as sensitive, low-voltage microprocessor-based communication lines or analog sensor loops (SCADA inputs). When implementing the E-1 color code, ensure field technicians cross-reference terminal blocks to avoid using the #4 Green or #2 White conductors as active control legs if your facility reserves those colors exclusively for ground and neutral paths.

CABLE TYPE: 18 AWG / 12-Conductor Unshielded 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.