1.0mm2 Solid Copper Conductor Annealed 18 Awg Bare Copper Wire

BV 1.0 mm² / 18 AWG — Technical Specification

Performance Highlights

Electrical Performance

• Rated Voltage 450/750 V​ — Suitable for 220/380 V single-phase and three-phase distribution systems, as well as low-voltage control and signaling circuits.

• Low Conductor Resistance​ — Maximum DC resistance at 20 °C of ≤ 18.1 Ω/km, ensuring minimal voltage drop and efficient power transmission over typical building run lengths.

• Excellent Dielectric Strength​ — Withstands 2000 V AC for 5 minutes​ without breakdown, providing a robust safety margin above normal operating voltage.

• Stable Insulation Resistance​ — Maintains a minimum insulation resistance of ≥ 0.010 MΩ·km at 70 °C, preventing leakage current even under sustained load conditions.

Thermal & Current-Carrying Capability

• 70 °C Continuous Operating Temperature​ — The PVC insulation is formulated for long-term thermal stability at 70 °C ambient-rated service, with a short-circuit withstand capability of up to 160 °C for 5 seconds.

• Reliable Ampacity​ — Delivers approximately 14–15 A in free air​ and ~11 A when installed in conduit​ (30 °C ambient), making it ideal for lighting branch circuits, small appliance outlets, and control wiring.

• Controlled Thermal Aging​ — The PVC compound exhibits low thermal deformation and high resistance to embrittlement over decades of service life.

Mechanical Durability

• Solid Copper Conductor (Class 1)​ — 1.13 mm diameter annealed copper rod delivers high tensile strength and dimensional stability. The solid construction resists stretching during pulling and maintains secure terminations under screw-clamp connections.

• Uniform Insulation Extrusion​ — 0.6 mm nominal PVC wall thickness is applied via precision extrusion, producing a smooth, concentric profile with an average overall diameter not exceeding 2.8 mm​ — compact enough for dense conduit fills.

• Good Flexibility for Installation​ — While solid, the 1.0 mm² gauge offers manageable bending characteristics with a minimum bend radius of 4× diameter (~11 mm), suitable for standard conduit bends and panel routing.

• Abrasion & Impact Resistance​ — The PVC jacket provides effective protection against minor mechanical abrasion, crushing, and impact when installed in conduit or trunking.

Safety Characteristics

• Flame Retardant​ — Passes GB/T 18380.1​ single-cable vertical flame test, self-extinguishing once the ignition source is removed, limiting flame spread along the cable length.

• Electrical Isolation​ — High-quality PVC formulation ensures consistent dielectric properties, protecting against accidental contact and short circuits.

• Color-Coded Identification​ — Available in Red, Black, Blue, Yellow/Green (earth), White, Brown, Grey, and Orange for intuitive phase, neutral, and protective conductor identification per regional wiring codes.

Environmental & Chemical Resistance

• Moisture Tolerance​ — Suitable for dry to damp locations (not wet or submerged). Performs reliably in typical indoor humidity conditions.

• Chemical Stability​ — Resistant to common household and industrial chemicals including mild acids, alkalis, oils, and solvents at ambient temperatures.

• UV Limitation​ — Not rated for prolonged direct sunlight exposure; outdoor or rooftop runs require UV-protective conduit or raceway.

• Service Life​ — Expected service life of 25+ years​ under normal indoor installation conditions with proper derating.

Installation & Handling

Color Selection

Application Scope

Primary Applications:

• Residential lighting and small-power circuits

• Commercial office fit-out wiring (switches, sockets, controls)

• Internal wiring of distribution boards, consumer units, and switchgear

• Control panel interconnections and instrumentation loops

• HVAC control circuits and thermostat wiring

Typical Projects:

• Apartment buildings, villas, and townhouses

• Schools, retail stores, and restaurants

• Light industrial workshops and warehouses

• Renovation and retrofit of legacy electrical installations

Product Selection Guide

Quality Assurance

Every production batch undergoes in-process and final inspection covering:

• Conductor resistance measurement

• Insulation thickness and concentricity verification

• High-voltage withstand test (spark test or immersion)

• Flame retardancy sampling

• Dimensional and visual inspection

Test reports and Certificate of Compliance (CoC)​ are available upon request, referencing batch number and manufacturing date.

Summary

The BV 1.0 mm² / 18 AWG​ building wire represents the industry-standard choice for general-purpose fixed electrical wiring where cost-effectiveness, proven safety, and regulatory compliance are priorities. It combines a low-resistance solid copper core with durable PVC insulation to deliver stable, maintenance-free performance across the full service life of a building's electrical infrastructure. For projects demanding enhanced fire safety, low-smoke, or higher temperature ratings, the same manufacturer offers direct upgrade paths within the WDZ, NH, and BYJ​ product families.