Aerial Bunched Cables (LT ABC) for Industrial and Domestic Use

Currency Cables Aerial Bunched Cables (LT ABC) are modern overhead power distribution conductors engineered to replace bare overhead lines in rural, urban, and forested distribution networks. Manufactured with high-grade stranded EC-grade aluminium phase conductors insulated with carbon-black-loaded, weather-resistant Cross-Linked Polyethylene (XLPE), these cables are spirally twisted around a high-tensile aluminium alloy (AAAC) messenger wire. Built in compliance with IS 14255 standards, Currency LT ABC systems eliminate power theft via direct tapping, prevent transient phase-to-phase faults from falling tree branches, and ensure high human safety in densely populated corridors.

Features & Key Benefits

High-Grade UV & Weather-Resistant XLPE: Formulated with optimal carbon-black content to resist prolonged UV radiation, ozone degradation, and severe tropical weather swings.

Anti-Theft & Loss-Reduction Design: Fully insulated phase conductors prevent unauthorized direct hooking (katia connections), substantially reducing commercial transmission losses.

Elimination of Phase-to-Phase Faults: Insulated cores can touch tree branches or swing together in high-velocity winds without causing short-circuits or power trips.

High-Tensile Aluminium Alloy (AAAC) Messenger: Carries the entire mechanical tensile load over long pole spans, preventing phase conductor sag and elongation stress.

Compact Right-of-Way (RoW) Footprint: Requires minimal overhead corridor clearance, enabling safe routing through congested urban streets, narrow alleys, and forest zones without extensive tree trimming.

Technical Specifications Overview

Specification parameter	Standard Rating value
Voltage Grade (Uo/U)	Up to and including 1100 Volts (1.1 kV)
Standard Compliance	IS 14255:1995 / REC Specifications / IS 8130 / IS 398 (Part 4)
Conductor Construction	Phase/Street Light: Stranded EC Grade Aluminium (H2/H4)
Configuration Options	1, 2, or 3 Phase Cores + 1 Neutral/Messenger Wire + Optional Street Light Core (16/25 sq. mm)
Phase Conductor Range	16 sq. mm to 150 sq. mm
Maximum Operating Temperature	Continuous: 90°C

Common Applications & Uses

Secondary low-tension (LT) overhead rural and urban power distribution networks.
Electrification of congested urban settlements, narrow lanes, and high-density residential areas.
Overhead feeder lines running through dense forests, hilly terrains, and wildlife corridors.
Direct consumer service connections from overhead distribution poles to building energy meters.
Street lighting networks running concurrently on integrated, dedicated lighting cores.

Why Choose Currency Cables

Manufactured with high-purity EC aluminium and weather-stabilized XLPE insulation, Currency Aerial Bunched Cables deliver virtually zero distribution losses, high tensile span reliability, and total short-circuit immunity backed by over 30 years of manufacturing excellence.

Frequently Asked Questions

Conventional bare conductors (ACSR/AAC) are prone to phase-to-phase flashovers when touching tree limbs or swinging in high winds, and they pose severe electrocution hazards and allow illegal direct-hook power theft. LT ABC systems feature fully insulated XLPE phases bundled tightly together, preventing short circuits, stopping unauthorized power tapping, and ensuring human safety even if lines fall to the ground.

The messenger wire is manufactured from a high-tensile, heat-treated aluminium-magnesium-silicon alloy (AAAC per IS 398 Part 4). It serves two functions: it acts as the primary neutral conductor for the distribution circuit, and it bears the mechanical tensile load across pole spans. By carrying the weight and wind tension, it prevents mechanical strain and elongation on the current-carrying phase conductors.

Currency Cables extrudes the phase conductors with specialized weather-grade Cross-Linked Polyethylene (XLPE) compounded with a controlled percentage of fine carbon black (typically 2.5% ± 0.5%). This carbon-black matrix absorbs and dissipates ultraviolet radiation, preventing polymer brittleness, cracking, and dielectric degradation over decades of outdoor exposure.

Yes. We manufacture customized ABC bundles that include one or two dedicated insulated aluminium street-lighting cores (typically 16 sq. mm or 25 sq. mm) twisted alongside the main phase and neutral messenger conductors. This eliminates the need for stringing a separate set of poles or wires for public street lamps.

Because all phase conductors are jacketed in black XLPE for UV resistance, cores are identified via raised longitudinal ribs extruded directly on the outer surface of the insulation: - Phase 1: 1 continuous raised rib - Phase 2: 2 continuous raised ribs - Phase 3: 3 continuous raised ribs Street Light Core: Typically marked with 4 ribs or smooth unribbed with specific markings, while the messenger wire has a distinctive round profile.

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