(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
The most commonly used label for ACSR Cable identification is covered with protective film. This kind of label is sticky and has a layer of transparent protective film outside the printing part, which can protect the label printing font from abrasion. In addition, single cable / jumper can also use non coated label, flag label … Read more
In recent years, the city has developed rapidly Subway, station, hospital, school, high-rise housing Expansion of public facilities construction The number of high-rise buildings has soared The demand for urban electricity is rising Such a densely populated focus area Serious consequences of fire In recent years, the fire spread trend of such sites presents similar … Read more
When multiple cables are running in parallel, load measurement shall be conducted regularly to understand the load distribution and correctly grasp the operation status of ACSR Cables. The load distribution of multiple cables is uneven when running in parallel, and even one phase load of one cable will be close to zero. The main reason … Read more
The temperature of the cable is closely related to the load, but only checking the load can not ensure that the AAAC Cable is not overheated (1) the thermal resistance coefficient and side-by-side correction coefficient used in calculating the allowable ampacity of cables may be different from the actual situation. (2) when choosing cables to … Read more
Dancing a 700 meter long ultra-high voltage AAAC Cable that is thick at the mouth of the bowl and runs 3 kilometers underground, what are you doing? How many people will that take? How fierce is that? How hard is it to control? On May 27, with a series of questions, the author came to … Read more
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
Figure 6 t5000-3 transmitter and receiver Instrument: t5000-3 color screen intelligent pipeline instrument Signal output part: transmitter, direct connection, coupling clamp, LCC module Direct connection: direct connection signal output line, used when finding the route of power cut cable Coupling clamp: clamp method signal output line, used when finding live cable path LCC module: it … Read more
01 Project background If the city grid is given life, the AAAC Cable is his blood vessel, which injects the energy of the power grid. However, with the development, the construction frequency is high, which leads to the explosion of the risk of cable external force damage. Please see, this is the scene after the … Read more
The structure of mineral insulated ABC Cables with different names is convenient for us to design and select better, and there is no confusion about many naming rules. What are (rigidity) and (flexibility)? For a long time, the domestic mineral insulated cables are divided into two types: rigidity and flexibility. The internationally used magnesium oxide … Read more