Cost Efficiency: Reduces excavation and conduit costs by 30–50%.
Rapid Deployment: Installs 2–3 times faster than buried methods.
Flexibility: Adapts to varying terrain without extensive groundwork.
Tensile Strength: Minimum 1,500N for short spans, up to 12,000N for long-distance ADSS cables.
Temperature Range: -40°C to +80°C for outdoor durability.
Bend Radius: ≥20x cable diameter to prevent microbending loss.
Urban Areas: 25–40m spacing (concrete poles, 10–12m height).
Suburban/Rural: 40–50m spacing (wooden poles, 12–15m height).
Extreme Environments: Max 67m spacing with reinforced poles (e.g., steel lattice structures).
Factors:
Cable weight (kg/km)
Ice loading (up to 50mm thickness)
Wind speed (up to 320km/h)
Example: A 288-fiber ADSS cable on 50m poles requires 7/2.2mm galvanized steel messenger wire (tensile strength ≥41,000N).
Tensioning: Set messenger wire tension to 15–20% of breaking strength to allow thermal expansion.
Anchoring: Use concrete dead-end poles with guy wires (45° angle) for stability.
Sagging Control: Maintain sag at 1–2% of span length (e.g., 50m span = 0.5–1m sag).
①Pulling Tension: ≤0.5% of cable breaking strength (e.g., ADSS-288B1.3 allows max 60N pulling force).
②Lashing Techniques:
Self-lashing (ADSS): Use Weunion’s WU-LASH-ADSS tool for 0.5mm/m tension uniformity.
Messenger lashing: Polyester lashing wire with UV protection (WU-LASH-UV series).
③Splice Enclosures: IP65-rated, sun-resistant (holds 288 fibers, WU-AS-288 model).
①Design: Dielectric construction (no metallic components), ideal for high-voltage power line crossings.
②Weunion’s ADSS-288B1.3 Features:
288 single-mode fibers
Tensile strength: 12,000N
Arc protection tubing for ≤110kV power lines
③Installation Steps:
Pre-install arcing horns every 500m.
Use anti-vibration dampers (Stockbridge type) every 100m.
①Structure: Integrates a steel messenger within the cable jacket (8-shaped cross-section).
②Applications: Short spans (≤200m), rural broadband.
③Weunion’s GYFC8Y-144:
144 fibers
Messenger wire: 7/1.8mm steel
Temperature range: -40°C to +70°C
①Construction: Separate messenger wire supports cable weight.
②Weunion’s GYTA53-288:
Double steel armor for rodent resistance
Water-blocking tape
Compatible with 7/2.2mm messenger wire
③Installation Workflow:
Install messenger wire first (tension: 18% of breaking strength).
Lash cable to messenger using WU-LASH-UV lashing wire.
Maintain 50cm spacing between lashings (±3cm tolerance).
Symptoms: Microbends causing ≥0.5dB loss.
Weunion Solution: Install Stockbridge dampers every 50–100m (WU-DAMP-01 model).
Mitigation:
Use cables with ice-rated jackets .
Increase messenger wire tension by 10% in icy regions.
Clearance Requirements:
<1kV: 1.2m vertical clearance
1–33kV: 2.5m
33kV: 3.5m (ADSS with arc protection)
Grounding: ADSS cables require copper grounding wires every 500m.
Strategies:
Install lightning arresters on end poles.
Use grounding rods (2.5m length, 16mm diameter).
Weunion’s WU-LA-01 arrester reduces surge voltage by 80%.
Route Survey:
Use LiDAR for 3D terrain mapping.
Identify obstacles (buildings, trees, power lines).
Cable Selection:
Urban: ADSS-288B1.3 for high capacity.
Rural: GYFC8Y-144 for cost efficiency.
Pole Setting:
Concrete poles: 1.5m burial depth.
Wooden poles: 2m burial depth with concrete footings.
Messenger Tensioning:
Use Weunion’s WU-TENS-01 tension meter (accuracy ±1%).
Maintain tension at 15–20% of breaking strength.
Lashing Procedure:
ADSS: Self-lashing every 1–2m with WU-LASH-ADSS.
Messenger-supported: Polyester lashing every 50cm.
Termination Steps:
Strip cable jacket (30–40mm).
Splice fibers in WU-AS-288 enclosure (IP65-rated).
Test insertion loss (<0.1dB per splice).
OTDR Testing:
Weunion’s NK4000 OTDR (34dB dynamic range).
Verify loss <0.3dB/km at 1550nm.
Mechanical Testing:
Tension test: Apply 50% of breaking strength for 1 hour (no permanent deformation).
Cause: Inadequate messenger tension.
Fix: Re-tension messenger to 18% of breaking strength using tension clamp.
Possible Causes:
Microbends from improper lashing.
Contaminated splice points.
Remedy:
Inspect lashings (re-lash if tension <0.5mm/m).
Reclean splice points with 99% IPA .
Prevention:
Use GYTA53 armored cables (stainless steel armor).
Apply rodent-repellent coatings (WU-REPEL-01).
ADSS Series:
WU-ADSS-144B1.3: 144 fibers, 8,000N tensile strength.
Ideal for 33–110kV power line crossings.
Figure-8 Series:
WU-GYFC8Y-96: 96 fibers, integrated messenger.
Suited for rural broadband (spans ≤200m).
GYTA53 Series:
WU-GYTA53-288: 288 fibers, double steel armor.
Rodent-resistant, suitable for industrial zones.
Lashing Solutions:
WU-LASH-ADSS: Self-lashing tool for ADSS cables.
WU-LASH-UV: UV-stabilized polyester lashing wire.
WU-TENS-01 Tension Meter: Measures messenger tension (0–50kN range).
WU-DAMP-01 Vibration Damper: Reduces aeolian vibration by 90%.
Challenge: Connect 200 villages in hilly terrain.
Solution:
Installed 500km of WU-GYFC8Y-144 (figure-8 cable).
Poles spaced 40m, messenger wire: 7/2.0mm.
Outcome: 99.9% uptime, deployment completed 3 weeks ahead of schedule.
Challenge: High-capacity network in downtown area near 33kV power lines.
Solution:
ADSS-288B1.3 with arc protection tubing.
Arcing horns installed every 500m.
Outcome: 10G PON connectivity to 10,000 homes, <0.05dB average splice loss.
Robotic Installation:
Drones with robotic arms for high-altitude cable lashing .
Smart Cables:
IoT-enabled ADSS cables with built-in strain sensors .
Sustainable Materials:
Bio-based jackets for eco-friendly overhead solutions (reducing carbon footprint by 40%).
