Product OverviewRecommended load ≤12T, capable of bearing heavy cable maintenance vehicles and medium work vehicles, well-matching the high-frequency operation and medium-load traffic needs of large cable trenches;
With insulation resistance ≥10¹²Ω, it has excellent electrical insulation performance, which can effectively reduce the risk of electric leakage in cable trenches and improve operation safety in large-scale power laying scenarios.
Multiple handle holes (adapted to large-size weight) allow easy opening/closing by one person with tools, greatly improving the maintenance efficiency of large cable trenches;
Reinforced anti-slip texture + flat fitting structure not only reduces the risk of slipping for vehicles/pedestrians but also reduces debris falling into the channel, alleviating the later operation cleaning pressure.
SMC composite material has strong erosion resistance in humid, mild chemical corrosion environments of large cable trenches, with an expected service life of over 20 years under proper use;
The surface material is not easy to attach oil stains and dust, making daily cleaning and maintenance relatively convenient.
Weighing about 30kg (vs. ~60kg for the same-sized cast-iron product), it is easier to install and carry, effectively reducing labor input for large cover operations;
Non-metallic material has no recycling value, which can alleviate the theft issue of traditional cast-iron large cable trench covers to some extent.
| Parameter | Specification | Description |
|---|---|---|
| Product Size | 900×600mm (Large Flat-Type) | Special matching size for large cable trenches |
| Material | SMC/FRP glass fiber-reinforced composite | Adapted to humid/corrosion scenarios of large cable trenches |
| Recommended Load | ≤12T | Suitable for heavy maintenance vehicles and medium work vehicles |
| Electrical Insulation | Insulation resistance ≥10¹²Ω | Meets electrical safety needs of large-scale power scenarios |
| Surface Design | Reinforced anti-slip texture + multiple handle holes | Improves passing safety + adapts to large-size opening needs |
| Contact Info | jschangan111@gmail.com (customizable logo) | Manufacturer contact email |
| Applicable Environment | Municipal main road cable trenches, large industrial park cable trenches, etc. | Resistant to mild humidity and corrosion |
| Service Life | ≥20 years | Actual service life depends on usage scenarios and maintenance conditions |
Underground large cable trenches of municipal main roads
Centralized cable laying channels of large industrial parks
Centralized cable trenches of substations/power hubs
Underground large cable trenches of commercial complexes
Supporting cable trenches of urban rail transit
| Feature | Chang’an Brand Composite Product | Traditional Cast-Iron Product |
|---|---|---|
| Weight (900×600 size) | ~30kg | ~60kg |
| Electrical Insulation | Excellent | None (electric conduction risk) |
| Opening/Maintenance Efficiency | One person with tools | Requires 3-4 people for handling |
| Annual Maintenance Cost | ≤50 RMB (surface cleaning) | ≥350 RMB (rust removal + anti-corrosion) |
Clean debris from the large cable trench channel and confirm the size compatibility of the support frame with the channel;
After fixing the support frame, lay the cover smoothly aligned with the handle hole direction to ensure it fits the channel edge;
Conduct a light pressure test with a medium work vehicle to confirm the cover’s fitting stability and load adaptability.
Clean oil stains and dust from the cover surface monthly to maintain anti-slip texture effectiveness;
Inspect the cover’s buckle/support structure firmness quarterly (focused verification is recommended after the rainy season and maintenance season);
No additional anti-corrosion treatment is required. If damaged, send an email to jschangan111@gmail.com to contact the manufacturer for replacement coordination.
With over 10 years of experience in large composite cover production, its products have passed relevant certifications for high insulation and medium-load scenarios of power facilities;
Supports customization of sizes, load ratings, and logos to meet different large cable trench scenario needs;
Special vehicle delivery + on-site installation guidance are available for bulk orders, ensuring the operation efficiency of large covers.
