Types of cable faults

(1) Mechanical damage accounts for a large proportion of AAC Cable accidents. There are three main causes of mechanical damage. (1) it is directly damaged by external force. If the cable is damaged by accident in the process of urban construction, transportation, or excavation, piling, lifting and handling of underground pipeline engineering. (2) damage during … Read more

Methods to prevent cable corrosion

(1) The cable manufacturer is required to use the protective layer outside the metal sheath of the AAC Cable when manufacturing the cable, and the aluminum sheathed cable must have polyethylene or PVC outer sheath. 2) When selecting the cable route, it is necessary to make full investigation, collect the soil data near the area … Read more

Factors affecting insulation resistance of wires and cables

Small insulation resistance is often encountered in AAC Cable production, which is affected by many factors. In fact, there are four main factors that have a great influence on the coefficient of insulation resistance. 1、 The influence of temperature With the increase of temperature, the insulation resistance coefficient decreases. This is due to the increase … Read more

Is the thicker the cable insulation, the better?

Many friends may think that the thicker the AAC Cable, the better the insulation performance, the more durable the cable, and the better the quality. In fact, this idea is taken for granted, and there are some misunderstandings. This is because the insulation performance of cables depends on the technical indicators. The state has strict … Read more

Common sense of high temperature wire and cable

High temperature wire and cable are everywhere in our life, and widely used, it brings a lot of convenience to our life, and high temperature wire and cable has many advantages compared with ordinary ACSR Cable. Today, Shanghai Qiyue high temperature cable editor will talk about some common sense problems of high temperature wire and … Read more

Why should a certain length of cable be reserved

The environment of AAAC Cable laying is complex and diverse, such as bridge, direct burial, cable trench, pipe laying and so on. Therefore, when laying, operators often reserve a certain length in the planned length. There are many advantages in doing so. On the one hand, for the convenience of future maintenance, on the other … Read more

What is the difference in the temperature resistance of cables?

UL standard In UL standard, the common temperature resistance grades are 60 ℃, 70 ℃, 80 ℃, 90 ℃, 105 ℃, 125 ℃ and 150 ℃. How do these temperature ratings come? Is it the long-term operating temperature of the conductor? In fact, these so-called temperature ratings are called rating temperature in UL standards. It … Read more