LBGLJ Aluminum Conductor with Aluminum-Clad Steel Core (Electrified Railway)

The LBGLJ aluminum conductor with aluminum-clad steel core for electrified railways is a key current-conducting component of the electrified railway overhead contact system; its performance directly affects pantograph current collection quality and power supply reliability. Terms and definitions: the contact wire runs above the rails, remains in contact with the pantograph strip and conducts current, with left-right symmetric suspension grooves in the upper cross-section. This conductor uses a high-strength steel core for bearing capacity while the outer aluminum-clad steel strands provide conductivity, suited to large-span suspensions of 25kV single-phase AC electrified railway OCS.

Application: conductor for overhead contact systems of electrified railways, suitable for conventional, speed-raised and high-speed railway contact suspensions, and can be combined with messenger wires, droppers and various clamps into a complete contact suspension.

Available models: LBGLJ-50/8, 70/10, 95/15, 95/20, 120/20, 120/35, 150/8, 150/20, 185/10, 185/25, 185/30, 210/25, 240/30, 240/40, 300/40, selectable by line tension and current collection requirements.

Standard: TB/T 3111.2-2026, Stranded conductors for overhead contact system of electrification railway — Part 2: Aluminum conductor with aluminum-clad steel core; the corresponding GB type is JL/LB1A (GB/T 1179-2017).

Henan Chuangwit Railway Equipment Co., Ltd. supplies the full range of OCS conductors and associated fittings, supports volume procurement and customized supply, and provides selection consulting and end-to-end technical support for railway construction organizations. Hotline: 0375-6051688.

Main sizes of LBGLJ series aluminum conductor with aluminum-clad steel core (TB/T 3111.2, GB type JL/LB1A):

Table values are compiled from current national and railway industry standards; ordered parameters are subject to the latest published standard edition and the supply technical agreement.

Product Overview

The electrified-railway aluminum conductor with aluminum-clad steel core is one of the leading products in the Chuangwit contact wire and messenger wire range. Rated for 25kV single-phase AC electrified railway OCS, it combines the conductivity of aluminum with the high strength of the steel core, suited to large-span suspensions.

Key Features

• High-strength aluminum-clad steel core suits large-span suspensions
• The aluminum layer provides both conductivity and corrosion resistance for long service life
• Manufactured to TB/T 3111.2-2026 with 15 complete sizes from 50/8 to 300/40

Compliance & Quality Control

The product complies with TB/T 3111.2-2026, Stranded conductors for overhead contact system of electrification railway — Part 2: Aluminum conductor with aluminum-clad steel core (GB type JL/LB1A, GB/T 1179-2017); rated ultimate tensile force and wrapping performance meet the standard, with uniform stranding and fatigue resistance. DC resistance at 20℃ meets the standard, and ampacity satisfies traction power supply calculations. The company holds CRCC railway product certification and ISO9001 quality management system certification; every reel (batch) is delivered only after passing factory inspection.

Operating Conditions & Typical Applications

Suitable for high-speed, conventional-speed and urban rail OCS, enduring long-term current loading, vibration and atmospheric corrosion. Typical applications include high-speed railways, conventional and heavy-haul railways, urban rail transit and coastal corrosive environments.

Selection & Service

The company provides end-to-end service from selection calculations and drawing confirmation to volume supply and on-site technical guidance. Products are controlled under CRCC certification and the ISO9001 quality management system; standard items are stocked and volume orders are delivered on contractual schedules. For technical support and commercial inquiries, please call 0375-6051688.