Electrical knowledge: What are the ways to lay cables in power engineering?

There are several ways to lay cables: direct burial, pipe laying, shallow trenching, cable trenching, cable tunneling, and overhead laying. There are advantages and disadvantages in several ways. Generally, it is necessary to consider the urban development plan, the number of the length of the cable line length of the existing building and the influence of its surrounding environment. Technically, cable tunneling and cable trenching are convenient for cable construction, maintenance and overhaul. In some developed country cities, public tunnels have been considered in urban planning and construction. Practice has proved that the public tunnel works well, greatly reducing the number of repeated investment and repeated excavation of the road surface. However, the initial investment is huge, and the construction materials consume funds. In China, due to various factors, this laying method is rare. . In contrast, direct-buried laying and shallow-slot laying are economical laying methods. Direct-buried cables are the most economical and widely used electrical laying method, and are used in suburbs and places where vehicles pass less frequently. However, it is not conducive to the maintenance and overhaul of the cable. Once the cable fault is encountered, even if the fault point is measured by the tester, it is extremely inconvenient to re-open the cable trench. Therefore, the choice of cable laying method should be determined according to the actual conditions, according to engineering conditions, environmental characteristics, cable type and quantity, etc., with the development vision, in accordance with the requirements of satisfying operational reliability, easy maintenance and technical and economic rationality.

80mm Embedded Label Printer

The 80mm ultra-large paper warehouse is embedded with a thermal printer and supports a variety of communication interfaces, such as RS232, TTL, USB and other communication interfaces, allowing more users to accept it and making the product more friendly. It is widely used in large-scale self-service terminal equipment such as medical treatment and factories. Its appearance design is simple and supports the development of various systems. It does not need carbon ink, adopts thermal printing technology, and only needs thermal paper roll to print all kinds of content. It is an economical and fast printing. Support the secondary development of major systems. There are two types of manual tearing and automatic cutting.

80Mm Embedded Label Printer,80Mm Large Paper Warehouse Printer,Embedded Thermal Label Printer,Printer Thermal 80Mm Auto Cutter

Shenzhen Geyi Technology Co., Ltd. , https://www.gy-printer.cn