power main

简明释义

动力干线

英英释义

例句

1.If the device doesn't turn on, the issue might be with the power main.

如果设备无法开机，问题可能出在电源主线上。

2.We need to shut down the power main before performing any maintenance.

在进行任何维护之前，我们需要关闭电源主线。

3.Please check the power main to ensure it is properly connected.

请检查一下电源主线，确保它连接正确。

4.Make sure the power main is rated for the voltage of your equipment.

确保电源主线的额定电压符合您设备的要求。

5.The technician found a fault in the power main that caused the outage.

技术人员发现电源主线中有故障导致停电。

作文

In modern electrical systems, the term power main refers to the primary supply line that delivers electricity from the utility company to a building or facility. This crucial component of electrical infrastructure ensures that power is distributed efficiently and safely throughout the premises. Understanding the role of the power main is essential for anyone involved in construction, electrical engineering, or facility management.The power main acts as the backbone of an electrical system, connecting the external power grid to the internal wiring of a structure. It typically consists of heavy-duty cables and circuit breakers designed to handle high voltage and current levels. The installation of a power main must comply with local codes and regulations to ensure safety and reliability. For instance, improper installation can lead to short circuits, electrical fires, or even electrocution.Moreover, the power main is not just a passive conduit for electricity; it also plays a vital role in protecting the entire electrical system. Circuit breakers and fuses integrated into the power main can disconnect the power supply in the event of an overload or fault, preventing damage to appliances and reducing the risk of hazards. Therefore, regular maintenance and inspections of the power main are necessary to keep the electrical system functioning optimally.In residential settings, the power main is usually located in a utility room or basement, where it connects to the main electrical panel. From this panel, electricity is distributed to various circuits throughout the home, powering everything from lights and outlets to major appliances. Homeowners should be aware of the location and condition of their power main as it can impact energy efficiency and safety. For example, if the power main is outdated or damaged, it may not be able to support the electrical demands of modern households, leading to frequent tripping of breakers or even power outages.In commercial buildings, the power main often involves more complex systems due to the higher demand for electricity. Businesses rely heavily on their electrical infrastructure to operate smoothly, making the power main even more critical. Any disruption in the power supply can result in significant losses, which is why many companies invest in backup generators and uninterruptible power supplies (UPS) to safeguard against outages.In conclusion, the power main is a fundamental aspect of electrical systems that deserves attention and understanding. Whether in a home or a business, the power main ensures the safe and efficient distribution of electricity, protecting both people and property. By recognizing the importance of the power main, we can appreciate the complexities of our electrical systems and the need for proper maintenance and upgrades to meet our ever-growing energy needs. Understanding this term helps us navigate the world of electrical engineering and enhances our awareness of safety practices.

在现代电力系统中，术语power main指的是将电力从公用事业公司输送到建筑物或设施的主要供电线路。这个电气基础设施的重要组成部分确保电力在整个场所内高效、安全地分配。理解power main的作用对于任何参与建筑、电子工程或设施管理的人来说都是至关重要的。power main作为电气系统的支柱，将外部电网连接到结构的内部布线。它通常由重型电缆和电路断路器组成，旨在处理高电压和电流水平。power main的安装必须符合当地法规和规定，以确保安全和可靠性。例如，不当安装可能导致短路、电气火灾甚至触电。此外，power main不仅仅是电力的被动导体；它还在保护整个电气系统中发挥着重要作用。集成在power main中的断路器和保险丝可以在过载或故障发生时切断电源，防止设备损坏并减少危险风险。因此，定期维护和检查power main是保持电气系统正常运行的必要措施。在住宅环境中，power main通常位于公用设施室或地下室，与主电气面板连接。从该面板，电力分配到家庭中的各个电路，为灯光、插座和大型电器供电。房主应了解power main的位置和状况，因为这会影响能效和安全性。例如，如果power main过时或损坏，可能无法支持现代家庭的电力需求，导致断路器频繁跳闸或甚至停电。在商业建筑中，由于对电力的需求更高，power main通常涉及更复杂的系统。企业在运营中严重依赖其电气基础设施，使得power main更加关键。任何电源供应的中断都可能导致重大损失，这就是为什么许多公司投资备用发电机和不间断电源（UPS）以防止停电。总之，power main是电气系统的一个基本方面，值得关注和理解。无论是在家中还是在商业中，power main确保电力的安全和高效分配，保护人们和财产。通过认识到power main的重要性，我们可以欣赏电气系统的复杂性以及为了满足我们日益增长的能源需求而进行适当维护和升级的必要性。理解这个术语帮助我们导航电气工程的世界，并增强我们对安全实践的意识。