Type W / DLO Cable Applications Overview
Type W and DLO cables are the backbone of heavy-duty portable power distribution in mining, industrial, and transportation applications. Their rugged chloroprene rubber jackets, flexible tinned copper conductors, and 2kV rating make them ideal for harsh environments where conventional cables fail. This guide covers the primary applications and installation practices for Type W and DLO cables.
View our DLO 2kV cable and Type G-GC mining cable product pages for specifications.
Mining Excavator and Shovel Power
Type W cable is the standard trailing cable for mining equipment:
- Excavator trailing power: 3-phase power supply from power distribution box to electric mining shovel or excavator
- Dragline power: Heavy-duty trailing cable for electric draglines and large shovels
- Continuous miner: Power supply to continuous miners and underground equipment
- Conveyor drive power: Portable power to conveyor drives during relocation
- Cable reels: Type W cable mounted on motorized cable reels for mobile equipment
Type W’s multi-conductor construction (3C+G or 4C+G) provides complete 3-phase power in a single cable, simplifying installation and cable management on mobile equipment.
Locomotive and Rail Car Power
DLO (Diesel Locomotive) cable is the standard for rail applications:
- Locomotive power jumpers: Inter-car power connections between locomotive units
- Rail car wiring: Power distribution within rail cars and locomotives
- Engine starter: High-current starter motor power for diesel locomotives
- Generator output: Locomotive alternator/generator output connections
- Battery connections: Locomotive battery and battery charger connections
DLO’s ultra-flexible single-conductor design handles the vibration and movement inherent in rail applications.
Industrial and Welding Applications
DLO and Type W cables are widely used in industrial settings:
- Welding power: DLO cable for arc welding machine power supply and electrode leads
- Shore power: Ship-to-shore power connections at ports and shipyards
- Temporary power: Construction site portable power distribution
- Equipment jumpers: Short flexible cable runs between equipment panels
- Battery banks: DLO for inverter and battery bank interconnections
- Crane power: Portable power supply to mobile cranes and gantries
- Stage power: Entertainment industry temporary power distribution
Application Selection Matrix
| Application | Recommended Cable | Typical Size | Key Requirement |
|---|---|---|---|
| Mining excavator trailing | Type W 3C+G | 2-4/0 AWG | MSHA approved |
| Locomotive power jumper | DLO 1C | 1/0-4/0 AWG | Ultra-flexible |
| Welding power lead | DLO 1C | 2-4/0 AWG | Arc resistant jacket |
| Shore power | Type W 3C+G or DLO | 2/0-4/0 AWG | UV and water resistant |
| Battery/inverter | DLO 1C | 1/0-4/0 AWG | High current, flexible |
| Temporary power | Type W 3C+G | 6-2 AWG | Portable, abrasion resistant |
Installation Best Practices
- Bending radius: Minimum 6× OD for both Type W and DLO
- Cable terminations: Use UL-listed compression lugs sized to AWG and conductor material
- Crimping: Use proper crimping tool and die — hex compression for maximum contact
- Strain relief: Use cable clamps at equipment entry to prevent lug stress
- Cable reels: Ensure reel diameter is at least 10× cable OD to prevent fatigue
- Drag protection: Use cable sleds or sliders in mining to reduce abrasion
- Temperature: Install above -40°C for rubber jacket flexibility
- Splicing: Use UL-listed mining cable splice kits — maintain 2kV insulation rating
When to Use Type W vs DLO
| Cable Type | Best For | Conductor Count |
|---|---|---|
| Type W | Trailing power to mobile equipment | 3C+G, 4C+G (multi-conductor) |
| DLO | Single-conductor jumpers, welding, battery | 1C (single conductor) |
See our Type W vs DLO comparison guide for detailed differences.
Why Choose TEBAOFLEX for Type W / DLO Cable?
- UL 44 and CSA certified manufacturing
- MSHA approval support for mining applications
- Premium chloroprene rubber jacket for maximum durability
- Ultra-flexible tinned copper conductors
- Complete AWG range: 8 AWG to 4/0 AWG and larger
- Global mining and industrial project experience
Contact TEBAOFLEX for Type W / DLO cable selection assistance and project pricing.
