Knowledge about PVC electrical tape

Knowledge about PVC electrical tape


News 05 Jul 2021

The full name of PVC electrical tape is called polyvinyl chloride electrical insulation tape, also known as PVC electrical insulation tape or insulation tape. It is generally divided into three types: insulating black tape, PVC electrical flame-retardant tape, and high-voltage self-adhesive tape. , The question is, what is the difference between these 3 kinds of PVC electrical tapes? Insulating black tape, also called insulating tape, is a very common black tape in our lives. It is made of cotton cloth as the base material and is made by calendering. It has good insulation and winding properties, low price, and aging resistance. It is mainly used for general-purpose wires. Insulation and protection of cables can also be used to fix and bind, etc.

However, because the insulating black tape has no flame-retardant and waterproof functions, and the invention and application of PVC electrical tape, it has been gradually replaced. However, it should be noted that in a low temperature environment, the superiority of black tape is not available to PVC tape. Comparable. PVC electrical flame-retardant tape is one of the most common and most widely used nowadays. It is made of polyvinyl chloride film as the base material and is made of a pressure-sensitive adhesive uniformly coated on the PVC film. It has insulation, pressure resistance and flame retardancy. , Weather resistance and other characteristics, not only suitable for wire winding, transformers, motors, capacitors, voltage stabilizers and other various motors, insulation and fixing of electronic parts, but also suitable for bundling, fixing, overlapping, repairing, sealing and protecting in industrial processes. At the same time, PVC electrical flame-retardant tape is not as monotonous as black tape. It is available in various colors such as red, yellow, blue, white, green, black, and transparent.

PVC electrical flame retardant tape is made of PVC as the main material, so its ductility is poor, especially when the joint is wrapped, it cannot achieve a very tight ideal state, and the waterproof performance is not good enough, but in general, PVC electrical The advantages of flame retardant tape are still very obvious. The high-pressure self-adhesive tape is made of rubber, oil, and calcium powder. It has the characteristics of good self-adhesiveness, good ductility, integrated with the insulating layer after wrapping, and strong sealing. It can withstand high temperatures up to 150 degrees, generally Applied to relatively high-level voltage, it is mainly suitable for insulation, sealing and waterproofing of wire and cable joints, and also suitable for pipeline protection, repair, and sealing.

At the same time, due to the good ductility of the high-voltage self-adhesive tape, its performance in terms of waterproof and insulation is better than that of insulating black tape and PVC electrical flame-retardant tape, so it is often used in low-voltage fields, but high-pressure self-adhesive The strength of the tape is not as strong as that of PVC electrical flame-retardant tape, so in many cases, the two must be used together to achieve better results. All in all, whether it is insulating black tape, PVC electrical flame-retardant tape or high-voltage self-adhesive tape, all have different advantages and characteristics. The most important thing is to choose high-quality, safe and stable performance products to ensure the safety of yourself and others while achieving good Construction effect.

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