Seven tricks to identify inferior cables

Seven tricks to identify inferior cables

Look closely at the label printing sample, the handwriting is vague and the address is unknown. It refers to looking at the printed words on the label and insulating outer skin. If there are typos or different printing shades and vague words, attention should be paid to them.

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Classification and Application of Wire and Cable

Classification and Application of Wire and Cable

What kinds of insulated wires are there? Answer: The common insulated wires are the following: PVC insulated wires, PVC insulated flexible wires, nitrile PVC mixture insulated flexible wires, rubber insulated wires, agricultural underground directly buried aluminum core plastic insulated wires, rubber insulated cotton textile flexible wires, PVC insulated nylon sheathed wires, PVC insulated flexible wires for power and lighting, etc.

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Several reasons for cable aging

Several reasons for cable aging

The most direct cause of the aging failure of the wire and cable is the breakdown of the insulation. There are many reasons for the reduction of conductive insulation. According to the actual operation experience, it can be summed up in the following situations.

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Precautions for connecting the heat tracing cable to the power junction box

Precautions for connecting the heat tracing cable to the power junction box

When choosing to use the pipeline insulation electric heating belt, there are many accessories that can give full play to the good heating efficiency, such as power junction box, two-way, three-way, tail junction box, adhesive tape, insulation cotton, distribution box, etc. Explosion-proof power junction box is used for connecting the power cord and electric heating belt in explosion-proof area. Its shell is made of high-strength plastic, which is suitable for explosion in the first and second zones of the factory after matching with the tracing belt.

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How to Connect Self-limiting Temperature Electric Tracing Tones to Use

How to Connect Self-limiting Temperature Electric Tracing Tones to Use

Self-limited temperature electric heating belt is also called self-controlled temperature electric heating belt. It is a new generation of strip-shaped constant temperature electric heating product, which is composed of polymer conductive carbon particles and two parallel bus bars plus insulating layers. The resistivity of its heating element has a high positive temperature coefficient "PTC" and is connected in parallel with each other. It can be cut and used at will, but it cannot be connected at will.

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How to choose high temperature line

How to choose high temperature line

Ordinary wire and cable is plastic and rubber insulation sheath, these data are conventional engineering data, with rich sources, can meet a wide range of consumption, and the cost is relatively low. But for some special industries such as petrochemical, steel, aerospace, shipbuilding, military, pharmaceutical, food, plastic machinery, boilers and other industries related to heat and high temperature, they all need to be able to withstand one

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