What is a Double-Arm Street Light Pole?
Definition
A double-arm street light pole is a pole structure with two cantilever arms (one on each side) mounted on the same pole. It supports two luminaires for dual carriageway roads, providing uniform illumination in both directions.
Typical Configurations
| Configuration | Feature | Application |
|---|---|---|
| Symmetrical Double Arms | Equal height and length on both sides | Standard dual carriageways |
| High-Low Arms | Different heights on each side | Different lighting requirements per side |
| Double-Tier Arms | Two levels of luminaires per side | Main roads, wide carriageways |
Double-Arm vs Single-Arm Poles
| Comparison | Single-Arm | Double-Arm |
|---|---|---|
| Number of Arms | Single side | Both sides |
| Lighting Direction | Single-side directional | Two-way symmetrical |
| Road Type | One-sided roads, branch roads | Dual carriageways, main roads |
| Steel Usage | Less | 20%-30% more |
| Lighting Coverage | Single side | Both sides |
Core Advantages
🔧 Advantage 1: Two-Way Illumination – Complete Coverage
One pole completes dual carriageway lighting without alternating pole placement. Left and right arms direct light to both sides of the road, ensuring uniform illuminance across both carriageways.
🔧 Advantage 2: Space Efficiency – Fewer Poles
Compared to single-side layouts requiring poles on both sides, double-arm poles reduce pole count by 40%+.
🔧 Advantage 3: Multiple Configurations – Flexible Adaptation
Supports symmetrical, high-low, and double-tier configurations for flexible adaptation to road width and lighting requirements.
🔧 Advantage 4: Dual Anti-Corrosion – Rugged and Durable
Hot-dip galvanizing + outdoor powder coating, zinc coating ≥85μm, 15+ years service life.
Technical Specifications
Double-Arm Pole Model Series
| Model | Height | Recommended Arm Length | Wall Thickness | Recommended Wattage | Typical Application |
|---|---|---|---|---|---|
| DLP-6 | 6m | 1.0-1.5m | 3.0mm | 50W-80W×2 | Dual branch roads, communities |
| DLP-8 | 8m | 1.5-2.0m | 3.5mm | 80W-120W×2 | Urban dual carriageways |
| DLP-10 | 10m | 2.0-2.5m | 4.0mm | 120W-180W×2 | Urban main roads, industrial parks |
| DLP-12 | 12m | 2.5-3.0m | 4.5mm | 180W-250W×2 | Main roads, boulevards |
| DLP-14 | 14m | 3.0-3.5m | 5.0mm | 250W-300W×2 | Wide main roads |
Pole Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Material | National standard Q235 low-silicon carbon steel | Single-bend forming |
| Shape | Conical / Octagonal | Customizable |
| Height Range | 6m – 15m | Customizable |
| Wall Thickness | 3.0mm – 6.0mm | Based on height and load |
| Bottom Diameter | 140mm – 300mm | Based on height |
| Top Diameter | 76mm – 89mm | Standard luminaire interface |
Arm Specifications
| Parameter | Specification |
|---|---|
| Arm Configuration | Symmetrical double arms / High-low arms / Double-tier arms |
| Arm Length Range | 1.0m – 3.5m (each side) |
| Mounting Tube Diameter | 60mm – 76mm |
| Height Difference (High-Low) | 0.5m – 1.0m |
Product Features
🔧 Feature 1: Symmetrical Two-Way Design
Symmetrically arranged arms ensure uniform illuminance across both carriageways, eliminating the uneven lighting issues of single-side layouts.
🔧 Feature 2: Independent Arm Lengths
Each side can be independently customized for different lengths, accommodating asymmetric road widths or special lighting requirements.
🔧 Feature 3: High-Low Configuration
When one side requires higher illuminance, high-low arm configuration allows a primary luminaire on the higher side and supplementary or decorative lighting on the lower side.
🔧 Feature 4: Smart Function Ready
Pre-drilled cable entry holes and smart device mounting points for future upgrades.