In the severe cold in winter, many construction workers will find such a problem when laying and installing Aerial Bundled Cable: ABC cable products with good quality usually have some hardening of the wire body and peeling off of the insulation coating. In view of these phenomena, many construction workers think that the wire and … Read more
1. Greasy dirt on the wire surface Overhead ACSR cables used for overhead transmission lines are often questioned by customers or even returned due to surface quality problems. This phenomenon is mainly caused in the drawing process. The main reasons are as follows: (1) The size of the finished wire drawing die is too large, … Read more
Bridge, also known as cable bridge, is composed of support, tray, cover plate and installation accessories. In a computer room project, compared with expensive and high-tech hardware and software, the bridge is very insignificant and rarely paid attention to, but it is also an indispensable part of the whole wiring project. Today, let’s talk about … Read more
The phenomenon of wire joint heating is generally manifested in that there is peculiar smell around the wire joint, which can be smelled. This is because the heat of wire joint makes the outer insulation layer smell; Secondly, the ACSR Cables joint is smoking, red, the outer insulation layer is black, fire, or even broken. … Read more
The speed of cable fault repair directly affects the economic benefits and social image of cable operation Department, and it is also an important symbol to measure the comprehensive management level of AAC Cable operation Department. The repair of cable fault, from receiving the cable fault repair order, checking data, measuring faults, finding fault points, … Read more
1. Hazards to distribution transformer: For the distribution transformer with the wiring group of yyno, during the three-phase four wire system wiring, the third harmonic current generates harmonic voltage in the original and auxiliary windings of the distribution transformer and causes the neutral point voltage to rise. In addition, because the odd harmonics have the … Read more
Flame retardant wires and cables have unique flame retardant, low smoke emission and harmful smoke suppression properties. What flame retardant properties should AAC Cable materials have? Type and performance of flame retardant wire and cable 1. General flame retardant wires and cables Generally, the insulating layer and protective sleeve of flame-retardant wires and cables are … Read more
In our daily sales, we may encounter customers asking about ACSR Cable selection in the process of maintenance and repair. As a cable salesman, choosing the right cable for customers is the top priority of this work. picture First, the actual power of the load should be considered, at the same time, the maximum current … Read more
1. Replace the damaged well cover, cover plate and protection plate, and complete the missing well cover, cover plate and protection plate. 2. Maintain the working shaft stop. 3. Clean up the water and debris in the passage. 4 stairs (ladder) for tunnel maintenance personnel entering and leaving the shaft 5. Maintain the ventilation, lighting, … Read more
1. Manhole and drainage pipe (1) water samples were taken for chemical analysis. (2) remove the water in the well and remove the sludge. (3) paint the iron parts such as cable bracket and hook. (4) check the well cover and ventilation, and check the well body for settlement and cracks. (5) dredge the spare … Read more