Product

Semi-conductive Nylon Tape


  • production Capacity 7000t/y
  • Payment Terms T/T, L/C, D/P, etc.
  • Delivery Time 15-20 days
  • Container Loading 12t / 20GP, 26t / 40GP
  • Shipping By sea
  • Port of Loading Shanghai, China
  • HS Code 5603131000
  • Storage 6 months

Free Sample Terms

ONE WORLD is committed to providing customers with industleading high-quality wire and cable matenals and first-classtechnical services

You can request a free sample of the product you are interested inwhich means you are willing to use our product for production
We only use the experimental data you are willing to feedback andshare as the verification of product characteristics and quality , andthen help us to establish a more complete quality control system toimprove customers’ trust and purchase intention , so please restassured
You can fill out the form on the right to request a free sample

Application Instructions
1 . The customer has an international express delivery account orvoluntarily pays the freight ( the freight can be returned in the order )
2 . The same institution can only apply for one free sample of thesame product , and the same institution can apply for up to fivesamples of different products for free within one year
3 . The sample is only for wire and cable factory customers , and onlyfor laboratory personnel for production testing or research

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

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 shielding of the power cables with nominal cross-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.

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.

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.

PACKAGING/ STORAGE

Packaging

The semi-conductive nylon tape is wrapped in a moisture-proof film bag, then put into a carton and packed by pallet, and finally wrapped with a wrapping film.
Carton size: 55cm*55cm*40cm
Package size: 1.1m*1.1m*2.1m

Storage

(1) The product shall be kept in a clean, dry and ventilated warehouse.
(2) The product should not be stacked with flammable products and strong oxidants, and should not be close to fire sources.
(3) The product should avoid direct sunlight and rain.
(4) The product should be packed completely to avoid moisture and pollution.
(5) The product shall be protected from heavy pressure and other mechanical damage during storage.
(6) The storage period of the product at ordinary temperature is 6 months from the date of production. More than 6 months, the product should be re-examined and only used after passing the inspection.

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