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Electric Power Pipe Series
MPP Underground Electrical Cable Conduit Pipe
Standard: DL/T 802.7-2023
1. Size: SN24, SN32, SN40.
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
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Introduction
Also known as modified polypropylene material, MPP is primarily used to produce MPP power cable pipes. Modified polypropylene pipes (MPP pipes, or MPP power pipes for short) feature high temperature resistance and external pressure resistance, and are suitable for high-voltage transmission lines and cable protection pipes of 10KV and above. MPP power cable pipes offer excellent electrical insulation, high heat distortion temperature and reliable low-temperature impact resistance. In addition, MPP pipes outperform HDPE pipes in tensile and compressive strength. They are also lightweight, with smooth surfaces and low friction coefficients, and can be joined via hot fusion butt welding. With excellent corrosion resistance and a long service life, MPP pipes exhibit superior physical properties overall.
Description of MPP Underground Electrical Cable Conduit Pipe
Made from modified polypropylene, MPP electrical conduits support non-excavation installation without the need to dig up or damage roads. This allows them to be applied to special construction scenarios such as roadways, railways, buildings and riverbeds. Compared with traditional excavation-based construction, non-excavation construction is more environmentally friendly, as it avoids construction-induced dust pollution and traffic congestion. It is particularly suitable for projects in areas where excavation is difficult, including historical sites, downtown districts, farmlands, highways and river courses.
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Feature
Benefits of MPP Underground Electrical Cable Conduit Pipe
Factory direct supply
Compliant with industry standards
Stable chemical properties
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Excellent electrical insulation properties.
Better crush resistance and tensile strength than HDPE pipes.
Higher heat distortion temperature and excellent low-temperature impact resistance.
MPP conduits are lightweight with smooth surfaces and low friction coefficients.
MPP conduits can be joined by thermal fusion welding, with a service temperature range of -5℃ to 70℃.
Specification
| Nominal Internal Diametera DN/ID |
Nominal Wall Thickness en | Out-Of-Ooundness | ||
| Nominal Ring Stiffness Classb | ||||
| SN24 | SN32 | SN40 | ||
| 100 | 6 | 8 | 10 | ≤2.0 |
| 125 | 8 | 10 | 12 | ≤2.3 |
| 150 | 10 | 12 | 14 | ≤2.5 |
| 175 | 12 | 14 | 16 | ≤2.8 |
| 200 | 14 | 16 | 18 | ≤3.2 |
| 225 | 16 | 18 | 20 | ≤3.8 |
| 250 | 18 | 20 | 22 | ≤4.2 |
| 280 | 20 | 22 | 24 | ≤4.5 |
| 315 | 22 | 24 | 26 | ≤4.8 |
| 355 | 24 | 26 | 28 | ≤5.2 |
| 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. | ||||
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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℃. |
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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
• Widely applied to the following scenarios:
• Urban power grid construction and transformation.
• Urban municipal reconstruction projects.
• Civil airport construction projects.
• Construction of industrial parks and residential areas.
• Cable protection for street lamps and traffic signal lamps.
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.
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