English
Electric Power Pipe Series
HDPE Underground Electrical Cable Conduit Pipe
Standard: DL/T 802.7-2023
1. Size: SN12, SN18, SN24.
2. Length: Length 5.8M/11.8M.
3. CO (Certificate of Origin): China, CO could be provided.
4. Products Inspection: Raw material, production process, delivery or third-party factory inspection.
5. Standard: DL/T 802.7-2023.
6. Delivery: 10-20 days depending on the total quantity.
- Introduction
- Feature
- Specification
- Physical Parameter
- Application
- Download
Introduction
HDPE power pipes are made of high-quality high-density polyethylene resin as the main raw material, with appropriate additives, and are manufactured via the extrusion process. These HDPE conduits can be installed by means of horizontal directional drilling (HDD), traditional trenching, and other methods. They are widely used as protective sleeves for buried high-voltage cables and street lamp cables.
Description of HDPE (High Density Polyethylene) Underground Electrical Cable Conduit Pipe
The purpose of HDPE power pipe is to provide a clear, protected pathway for a cable. The HDPE power pipes are manufactured for mechanical protection to High Voltage, Low Voltage and Service electrical cables. Basically HDPE power pipes are used for installations of local and long-distance power networks. The outer HDPE shell makes the pipe more tough and durable and enables the duct to withstand the pressure during insertion / pulling of cable as well as retain the roundness under soil pressure and traffic load.
Factory visits and third-party inspections are welcome.
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
Feature
Benefits of HDPE (High Density Polyethylene) Underground Electrical Cable Conduit Pipe
Source‑controlled raw materials
High pressure & corrosion resistant
Structurally stable with smooth surface
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
UV stabilized and suitable to store outside for one year.
High ESCR and Crush Resistance.
Enhanced Life of the Network.
High Flexibility.
High Ductility.
Low Pull Force Requirement.
Facilitates Maintenance and Future Upgrades.
Reduces Project Installation Cost and Time.
Specification
| Nominal Internal Diametera DN/ID |
Nominal Wall Thickness en | Out-Of-Ooundness | ||
| Nominal Ring Stiffness Classb | ||||
| SN12 | SN18 | SN24 | ||
| 70 | 3.0 | 3.8 | 4.5 | ≤1.6 |
| 90 | 4.0 | 5.0 | 6.0 | ≤1.8 |
| 100 | 5.0 | 6.5 | 8.0 | ≤2.0 |
| 125 | 6.0 | 8.0 | 10.0 | ≤2.3 |
| 150 | 8.0 | 10.0 | 12.5 | ≤2.5 |
| 175 | 10.0 | 12.5 | 15.0 | ≤2.8 |
| 200 | 12.5 | 15.0 | 17.5 | ≤3.2 |
| 225 | 15.0 | 17.5 | 20.0 | ≤3.8 |
| 250 | 17.5 | 20.0 | 22.5 | ≤4.2 |
| a In special cases, other specifications of conduits may be manufactured upon negotiation between the supplier and the buyer, provided that their nominal ring stiffness class shall not be lower than that of the closest class specified in the table. b SN12, SN18 and SN24 are nominal ring stiffness classes respectively. Higher ring stiffness classes can also be adopted according to the user's requirements. |
||||
| Note: When the nominal internal diameter is DN/ID 150, the conduits may be supplied in coiled form, for which no requirement shall be imposed on out-of-roundness, or this requirement may be determined through negotiation between the supplier and the buyer. | ||||
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
Physical Parameter
| Physical and Chemical Properties of Cable Duct DL/T 802.7-2023 |
|||
| Item | Requirement | ||
| PVC | HDPE | MPP | |
| Density(g/cm3) | 1.35~1.46 | 0.94~0.98 | 0.89~0.93 |
| Ring Stiffness (kN/m2) |
SN20:≥20 | SN12:≥12 | SN24:≥24 |
| SN30:≥30 | SN18:≥18 | SN32:≥32 | |
| SN40:≥40 | SN24:≥24 | SN40:≥40 | |
| Flattening Test | The sample should not be cracked. | ||
| Tensile Strength/MPa | ≥40 | ≥22 | ≥25 |
| Weld Strength/MPa | ≥30 | ≥22 | ≥22.5 |
| Elongation at Break/% | ≥80 | ≥350 | ≥150 |
| Drop-hammer Impact | At least 9 out of the 10 samples did not break. | ||
| Static Friction Coefficient | ≤0.35 | ||
| Vicat Softening Temperature/℃ | ≥83 | ≥110 | ≥150 |
| Vertical Contraction Rate/% | ≤5 | ≤3 | ≤3 |
| Heat Dispersion | When placed at room temperature for the specified period of time, the inner and outer wall temperatures of the tube shall both be ≤ 30℃. |
||
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
Application
• Power
• Low-voltage and medium voltage
• Site lighting
• Signal and control
• Fiber optic and communications
• Renewable energy(Solar and wind power projects)
• ITS(Intelligent transportation systems)
• SCADA(Supervisory Control and Data Acquisition)
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
