Product

Quality Inspection For Non-Woven Semi-Conductive Tape - Semi-conductive Nylon Tape – ONE WORLD


Free Sample Terms

Sample Packaging

free sample request form

Fill in the form below withsample needs ONE WORLDprofessional technical engineers will contact you within 24 hours .

Please enter the required sample specifications , or briefly describe theproject requirements , we will recommend samples for you

product description

, , ,
Quality Inspection For Non-Woven Semi-Conductive Tape - Semi-conductive Nylon Tape – ONE WORLD Detail:

1. Product Introduction

The semi-conductive nylon tape is made of nylon-based fibers coated on both sides with a semi-conductive compound with uniform electrical properties, which has good strength and semi-conductive properties.
In the production process of medium and high voltage power cables, due to the limitation of the manufacturing process, there are inevitably sharp points or protrusions on the outer surface of the conductor. The electric field of these tips or protrusions is very high which will inevitably cause the tips or protrusions to inject space charges into the insulation. The injected space charge will cause the aging of the insulated electrical tree. In order to ease the electric field concentration inside the cable, improve the electric field stress distribution inside and outside the insulating layer, and increase the electric strength of the cable, it is required to add a semi-conductive shielding layer between the conductive core and the insulating layer, and between the insulating layer and the metal layer.
As for the conductor shileding of the power cables with norminal corss-section a 500mm2 and above, it should be composed of a combination of semi-conductive tape and extruded semi-conductive layer. Due to its high strength and semi-conductive characteristics, semi-conductive nylon tape is especially suitable for wrapping a semi-conductive shielding layer on a large cross-section conductor. It not only binds the conductor and prevents the large cross-section conductor from loosening during the production process, but also plays a role in the process of insulation extrusion and cross-linking, it prevents the high voltage from causing the insulation material to squeeze into the gap of the conductor, resulting in tip discharge, and at the same time it has the effect of homogenizing the electric field.
For multi-core power cables, a semi-conductive nylon tape can also be wrapped around the cable core as an inner lining layer to bind the cable core and homogenize the electric field.
The semi-conductive nylon tape provided by our company has the following characteristics:
1) The surface is flat, without wrinkles, notches, flashes and other defects;
2) The fiber is evenly distributed, the water blocking powder and the base tape are firmly bonded, without delamination and powder removal;
3) High mechanical strength, easy for wrapping and longitudinal wrapping processing;
4) Strong hygroscopicity, high expansion rate, fast expansion rate and good gel stability;
5) The surface resistance and volume resistivity are small, which can effectively weaken the electric field strength;
6) Good heat resistance, high instant temperature resistance, and the cable can maintain stable performance at instant high temperatures;
7) High chemical stability, no corrosive components, resistant to bacteria and mold erosion.

2. Application

It is suitable for wrapping and shielding the semi-conductive shielding layer and cable core of the large cross-section conductor of the medium and high voltage and ultra-high voltage power cables.

3. Technical Parameters

Performance index

BNLD10

BNLD12

BNLD14

Nominal thickness (mm)

0.10

0.12

0.14

Tensile strength

 (N/cm)

≥100

≥120

≥140

Breaking elongation

(%)

≥25

≥25

≥25

Surface resistance

(Ω)

≤1000

≤1000

≤1000

Volume resistance

(Ω·cm)

≤1×105

≤1×105

≤1×105

Long term stability

(℃)

145

145

145

Short term stability

(℃)

230

230

230

Note: The width and length of the semi-conductive nylon tape can be provided according to customer requirements.

4. Storage Method

1) The product should be stored in a clean, hygienic, dry, and ventilated warehouse. It should not be stacked with flammable products and strong oxidants, and should not be near the fire source;
2) The product should avoid direct sunlight and rain;
3) The product should be packaged intact, avoid damp, and avoid contamination;
4) The product should be protected from heavy pressure, beating and other mechanical damage during storage and transportation.


Product detail pictures:


Related Product Guide:

Quality Inspection For Non-Woven Semi-Conductive Tape - Semi-conductive Nylon Tape – ONE WORLD , The product will supply to all over the world, such as: , , ,

5 Stars By from -

5 Stars By from -

Related products

inquiry form

According To Your Needs,customize For You,And Provide You with Morevaluable Products.