lead covered wire

简明释义

铅皮线

英英释义

例句

1.The lead covered wire was used in the construction of the new power plant for its durability.

在新电厂的建设中使用了铅包线，因为它耐用。

2.The technician replaced the damaged lead covered wire to ensure safety and functionality.

技术人员更换了损坏的铅包线以确保安全和功能性。

3.When working with lead covered wire, always wear gloves to avoid exposure to lead.

在处理铅包线时，请始终戴上手套，以避免接触铅。

4.For outdoor installations, lead covered wire provides excellent protection against the elements.

对于户外安装，铅包线提供了卓越的防护，抵御自然环境。

5.The electrician recommended using lead covered wire for better insulation in the old building.

电工建议在老建筑中使用铅包线以获得更好的绝缘。

作文

In the world of electrical engineering and telecommunications, the choice of materials for wiring is crucial for both performance and safety. One such material that has been used historically is lead covered wire. This type of wire consists of a core conductor, typically made of copper or aluminum, which is wrapped in a layer of lead. While it may seem outdated today, understanding the properties and applications of lead covered wire provides insight into the evolution of wiring technologies.The primary advantage of lead covered wire lies in its durability and resistance to environmental factors. Lead is a heavy metal that does not corrode easily, making it an excellent choice for outdoor applications where wires are exposed to moisture and other harsh conditions. For instance, in the early 20th century, many telephone companies utilized lead covered wire for underground installations. The lead covering protected the wire from water intrusion and soil acidity, thereby extending the lifespan of the telecommunications infrastructure.However, the use of lead covered wire raises significant health and environmental concerns. Lead is a toxic substance that can lead to serious health issues, including neurological damage, especially in children. As awareness of these risks grew, regulations were implemented to limit the use of lead in various products, including electrical wiring. Consequently, alternatives such as plastic insulation materials became more popular, leading to a gradual decline in the use of lead covered wire in modern applications.Despite its decline, lead covered wire still serves as a reminder of the importance of material selection in engineering. Engineers and designers must weigh the benefits of durability and protection against the potential hazards associated with toxic materials. This balancing act is crucial in developing safe and efficient electrical systems that meet contemporary standards.In conclusion, while lead covered wire may not be commonly used today due to health concerns, its history highlights the evolution of wiring technologies and the ongoing challenges faced by engineers. As we continue to innovate in the field of electrical engineering, it is essential to learn from past practices, ensuring that safety and environmental considerations remain at the forefront of our designs. The transition away from lead covered wire towards safer alternatives reflects a growing commitment to public health and environmental stewardship in the industry.

在电气工程和电信的世界中，材料选择对于性能和安全至关重要。其中一种历史上使用的材料是铅包线。这种类型的电线由一个核心导体组成，通常由铜或铝制成，外面包裹着一层铅。尽管今天看起来有些过时，但理解铅包线的特性和应用可以深入了解电线技术的发展。铅包线的主要优点在于其耐用性和对环境因素的抵抗力。铅是一种重金属，不易腐蚀，使其成为户外应用的绝佳选择，在这些应用中，电线暴露在潮湿和其他恶劣条件下。例如，在20世纪初，许多电话公司利用铅包线进行地下安装。铅的保护层防止了水分侵入和土壤酸度，从而延长了电信基础设施的使用寿命。然而，使用铅包线引发了重大健康和环境问题。铅是一种有毒物质，可能导致严重的健康问题，包括神经损伤，特别是在儿童中。随着对这些风险认识的提高，实施了限制在各种产品中使用铅的法规，包括电线。因此，塑料绝缘材料等替代品变得更加流行，导致现代应用中铅包线的使用逐渐减少。尽管使用减少，铅包线仍然提醒我们在工程中材料选择的重要性。工程师和设计师必须权衡耐用性和保护的好处与有毒材料相关的潜在危害。这种平衡在开发符合当代标准的安全高效的电气系统中至关重要。总之，虽然由于健康问题，铅包线今天可能不再常用，但它的历史突显了电线技术的发展以及工程师面临的持续挑战。随着我们在电气工程领域的不断创新，学习过去的做法至关重要，确保安全和环境考虑始终处于设计的最前沿。从铅包线过渡到更安全的替代品反映了行业对公众健康和环境保护日益增长的承诺。