MPP Power Cable Proteciton Pipe

Product Introduction

The modified polypropylene MPP power cable protection pipe is commonly used in a construction project for laying pipelines and cables under roads, railways, buildings, river beds and other special sections without massive dredging and damaging the road surface. Compared with the traditional trenching method, trenchless project is more suitable for the current environmental protection requirements. This technology can also be used to lay pipelines in areas where excavation cannot be carried out.Such as monument protection zone, downtown area, crop and farmland protection zone, highway, river, etc. MPP etc. can be widely used in municipal, telecommunication, electric power, gas, water, heat and other pipeline projects.

Modified polypropylene (MPP pipe) power cable protection casing has the characteristics of high temperature resistance and external pressure resistance, and is suitable for high voltage transmission wire and cable row pipe above 10KV. The common specifications of the pipe are 110 - -250mm, divided into ordinary type and reinforced type. Ordinary MPP pipe is suitable for excavation and laying construction and non-working excavation through the construction of burial depth of less than 4m; strengthening type is suitable for non-excavation through the construction of burial depth of more than 4m project.

 

Products Features

1. High rigidity and hardness

When the temperature reaches 100 ℃, the pipe still maintains high rigidity and hardness, and will not be deformed, flattened or punctured by sharp objects.

2. High tensile and bending strength

In trenchless pipe dragging process, the pipe will not be stretched, deformed or bent.

3. Reliable connectivity

Simple welding process; The unique hot-melt butt welding technology makes the strength of the interface higher than that of the pipe body, ensures the safety and reliability of the interface.

4. Excellent corrosion resistance

Except for a few oxidants, it can resist the corrosion of various chemical media, no electrochemical corrosion, more than 50 years working life.

5. Cold resistance

No embrittlement even under -20oC, suitable for cold area.

6. Low friction coefficient

Smooth inner wall will not scratch the surface of the cable, has superior wear resistance.

7. Excellent electrical insulation

8. Long term use temperature -40℃-+45℃

 

Application of MPP Pipe

1. City and countryside trenchless horizontal directional drilling cable pipe laying project and open excavation cable pipe laying project;

2. City and countryside trenchless horizontal directional drainage and pipe laying project.

3. Industrial waste water discharge project

 

Construction Instructions

1. the pipe transport, construction process is strictly prohibited arbitrary throwing, impact, scratching, exposure to the sun.

2. hot fusion butt when the two pipe axis to align, end cutting to vertical flat.

3. processing temperature, time, pressure, depending on the weather conditions to adjust accordingly. 4.

4. MPP pipe minimum bending radius should be ≥ 75 times the outer diameter of the pipe.

 

Technical index of MPP cable pipe

Physical and mechanical properties	PE	MPP
Tensile strength of pipe and welded joint	18	≥24
Hot compression of Ring Piece (70℃,2h) kN	1.3	≥2.0
bending strength	16.5	≥37
Bending elastic modulus	700~750	≥900
Drop impact test(-5℃，8h)	Unbroken	Unbroken
Vicat heat resistant(1kg,50℃/h)	110	150
Note: The pipe specification is 180 * 12.0

 

Item		index
Density g/cm³		0.90~0.94
Sliding friction coefficient		<0.35
Vicat heat resistant (10N,50oC/h),℃		≥120
Drop impact test (-5 ℃/8h,r20)	φ>160,10kgx2m	9/10 unbroken
	φ≤160,5kgx2m
	φ≤160,6kgx2m
Tensile strength, MPa	23±2℃	≥24.0
	70±2℃	≥18
Tensile strength of hot melt joint (23±2℃), MPa		≥21.6
Flattening test (1/2)	23±2℃	No broken
	-5 ℃/8h
Bending strength(23±2℃), MPa		≥37.0
Bending elastic modulus, MPa		900~1200
Ring Piece hot compression force (70℃/2h,5%),KN		≥1.3

 

Specification of MPP cable pipe