HBWFRP power drainage pipe modified polypropylene telecommunications cable pipe with low water absorption and direct drainage

BWFRP power pipe

1. Service conditions

Environmental temperature: -50 ℃~+160 ℃;

Maximum daily temperature difference: 50 ℃;

Earthquake: 7 degrees, with a ground horizontal acceleration of 0.2g and a vertical acceleration of 0.1g. The two accelerations act simultaneously, where g is the gravitational acceleration of the Earth's center;

Sunshine: 0.1W/cm (corresponding wind speed of 0.6 meters/second);

Soil acidity and alkalinity: 6 ≤ PH ≤ 9;

Laying conditions: excavation and pipe laying;

Environmental conditions: The protective tube can be immersed in urban sewage for a long time and can withstand oil corrosion.

2. Technical requirements

2.1 Raw materials

The material used for the catheter is mainly glass fiber and polyester resin, with other curing agents and flame retardants added.

2.2 Raw material performance requirements

Glass fiber should be made of alkali free glass fiber, with its performance indicators

It should comply with the provisions of GB/T 18369, the resin performance should comply with GB/T 8237, and other additives should comply with the corresponding national or industry standards.

3. Product specifications and dimensions

3.1Color

Generally, it is the primary color (milk white), and other colors can be agreed upon by both parties.

3.2Appearance

The surface of the conduit should be free of defects such as cracks, layering, pinholes, burrs, impurities, poor adhesive areas, bubbles, etc; The internal and external surfaces should be smooth and flat, without any unevenness; The two ends of the conduit should be flush, without burrs or burrs, and the inner edges of the socket and socket should be chamfered to prevent damage when the cable is pulled into or out of the conduit.

Deviation of nominal inner diameter

Nominal inner diameter d mm

Inner diameter deviation mm

one hundred

± 0.3

one hundred and fifty

± 0.4

two hundred

± 0.5

two hundred and fifty

± 0.5

Deviation of nominal wall thickness

Nominal wall thickness e, mm

Thickness deviation, mm

E<5.0

± 0.2

5.0 ≤ e<8.0

± 0.3

8.0 ≤ e<12.0

± 0.4

4. Protective tube connection:

The protective sleeves are connected by joint sleeves.

The stiffness and strength of the joint sleeve ring should be greater than that of the protective tube.

The connection of the protective sleeve should pass the water permeability test.

The protective tube is sleeved, and the inner ports at both ends of each pipe have guide angles and are smooth without protruding sharp objects to prevent scratching the outer sheath of the cable.