Semi-conductive Nylon Tape


  • Payment Terms T/T, L/C, D/P, etc.
  • Delivery Time 20 days
  • Place of Origin China
  • Port of Loading Shanghai, China
  • Shipping By sea
  • HS Code 5603131000
  • Packaging Carton or wooden box, 50kg/pack or according to client's requirement
  • Product Detail

    FAQ

    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.

    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.

    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.

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  • Q1: Can we visit your company?
    A: we are looking forward to your arrival and we will lead you to visit our factory.

    Q2: How fast can I get the quotation?
    A:We usually quote within 24 hours for normal cable materials after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.

    Q3: What is your terms of packing?
    A: Wooden drum, plywood pallet, wooden box, carton are for option, depends on different material or client’s requirements.

    Q4: What is your terms of payment?
    A: T/T, L/C, D/P, etc. We’ll show you the photos of the products and packages before you pay the balance.

    Q5: What is your terms of delivery?
    A: EXW, FOB, CFR, CIF. You can choose the one which is the most convenient or cost effective for you.

    Q6: How about your delivery time?
    A: Generally, it will take 7 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

    Q7: What is your sample policy?
    A: Sample for your tests are available, Please contact our sales to apply the free sample.

    Q8: How do you make our business long-term and good relationship?
    A: 1. We keep good quality and competitive price to ensure our customers benefit.
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

    Q9: Do you supply all the cable materials according to the cables we produce?
    A: Yes, we can. We have technician on production technology which is engaged in analyzing cable structure so as to list all the materials you need.

    Q10: What are your business principles?
    A: Integrating resources. Helping customers choose the MOST suitable materials, saving costs and improving quality.
    Small profits but quick turnover: Helping customers’ cables become more competitive in the market and develop rapidly.

    Q1: Can we visit your company?
    A: we are looking forward to your arrival and we will lead you to visit our factory.

    Q2: How fast can I get the quotation?
    A:We usually quote within 24 hours for normal cable materials after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.

    Q3: What is your terms of packing?
    A: Wooden drum, plywood pallet, wooden box, carton are for option, depends on different material or client’s requirements.

    Q4: What is your terms of payment?
    A: T/T, L/C, D/P, etc. We’ll show you the photos of the products and packages before you pay the balance.

    Q5: What is your terms of delivery?
    A: EXW, FOB, CFR, CIF. You can choose the one which is the most convenient or cost effective for you.

    Q6: How about your delivery time?
    A: Generally, it will take 7 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

    Q7: What is your sample policy?
    A: Sample for your tests are available, Please contact our sales to apply the free sample.

    Q8: How do you make our business long-term and good relationship?
    A: 1. We keep good quality and competitive price to ensure our customers benefit.
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

    Q9: Do you supply all the cable materials according to the cables we produce?
    A: Yes, we can. We have technician on production technology which is engaged in analyzing cable structure so as to list all the materials you need.

    Q10: What are your business principles?
    A: Integrating resources. Helping customers choose the MOST suitable materials, saving costs and improving quality.
    Small profits but quick turnover: Helping customers’ cables become more competitive in the market and develop rapidly.