knob -and-tube wiring

简明释义

暗藏明线

英英释义

例句

1.Upgrading from knob-and-tube wiring to modern electrical systems can increase your home's value.

将管-旋钮布线升级到现代电气系统可以提高您房子的价值。

2.Many older homes still have knob-and-tube wiring, which can be a fire hazard if not properly maintained.

许多老房子仍然有管-旋钮布线，如果维护不当，可能会成为火灾隐患。

3.Before purchasing the house, we had an electrician inspect the knob-and-tube wiring for safety.

在购买这栋房子之前，我们请电工检查了管-旋钮布线的安全性。

4.The presence of knob-and-tube wiring in a home can complicate renovations and electrical upgrades.

房屋中存在管-旋钮布线可能会使翻新和电气升级变得复杂。

5.Home insurance companies may require you to replace knob-and-tube wiring before they will cover your home.

家庭保险公司可能要求您在承保之前更换管-旋钮布线。

作文

In the early 20th century, homes across North America were often equipped with a type of electrical wiring known as knob-and-tube wiring. This system was widely used because it was one of the first methods to provide electricity safely in residential buildings. The design consists of insulated copper wires that run through ceramic knobs and tubes, which serve to support the wires and protect them from damage. While knob-and-tube wiring was innovative for its time, it has become somewhat outdated and is now considered a potential fire hazard in modern electrical standards.The main components of knob-and-tube wiring include the knobs, which are mounted on wooden beams to hold the wires in place, and the tubes, which are used to pass wires through walls and ceilings without risk of abrasion. This method allowed for a certain level of flexibility during installation, as electricians could easily navigate around obstacles in a home’s structure. However, the system has several drawbacks. For instance, it lacks a grounding wire, which is essential for modern electrical safety. This absence can lead to dangerous situations, especially if the wiring becomes damaged or frayed over time.One of the significant issues with knob-and-tube wiring is its inability to handle the electrical load required by today’s appliances. In an era where households rely heavily on numerous electronic devices, from refrigerators to computers, the original capacity of this wiring system may not suffice. Overloading knob-and-tube wiring can lead to overheating and, ultimately, house fires. Consequently, many homeowners are now faced with the decision to upgrade their electrical systems.Moreover, insurance companies often view homes with knob-and-tube wiring as high-risk properties. This perception can make it challenging for homeowners to secure insurance coverage or sell their homes. As a result, many people choose to replace this outdated wiring with more modern alternatives that comply with current building codes and safety regulations.In conclusion, while knob-and-tube wiring played a crucial role in the development of electrical systems in the early 1900s, it is no longer suitable for contemporary needs. Homeowners should be aware of the potential hazards associated with this wiring type and consider upgrading to ensure the safety and efficiency of their electrical systems. By doing so, they not only protect their property but also enhance the overall value of their homes. Understanding the implications of maintaining knob-and-tube wiring is essential for anyone living in older homes, as it can have lasting effects on safety and insurance.

在20世纪初，北美的许多家庭通常配备了一种称为knob-and-tube wiring的电气布线系统。这种系统被广泛使用，因为它是当时为住宅建筑安全提供电力的第一种方法之一。其设计包括通过陶瓷旋钮和管道运行的绝缘铜线，这些旋钮和管道用于支撑电线并保护其免受损坏。虽然knob-and-tube wiring在其时代是创新的，但现在已被视为一种潜在的火灾隐患，不符合现代电气标准。knob-and-tube wiring的主要组成部分包括安装在木梁上的旋钮，用于固定电线，以及用于通过墙壁和天花板传递电线而不发生磨损的管道。这种方法在安装过程中提供了一定程度的灵活性，因为电工可以轻松绕过房屋结构中的障碍物。然而，这一系统存在几个缺点。例如，它缺乏接地线，而接地线对于现代电气安全至关重要。这种缺失可能导致危险情况，尤其是在电线随时间变得损坏或磨损时。knob-and-tube wiring的一个重大问题是它无法处理当今电器所需的电负荷。在一个家庭严重依赖众多电子设备的时代，从冰箱到计算机，原始的布线系统容量可能不足。超载knob-and-tube wiring可能导致过热，最终引发房屋火灾。因此，许多房主面临着升级其电气系统的决定。此外，保险公司通常将配有knob-and-tube wiring的房屋视为高风险财产。这种看法可能使房主在获得保险覆盖或出售房屋时面临挑战。因此，许多人选择用更现代的替代品替换这种过时的布线，以符合当前的建筑规范和安全法规。总之，尽管knob-and-tube wiring在20世纪初电气系统的发展中发挥了关键作用，但它不再适合现代需求。房主应意识到与这种布线类型相关的潜在危害，并考虑进行升级，以确保其电气系统的安全性和效率。通过这样做，他们不仅可以保护自己的财产，还可以提高房屋的整体价值。了解维护knob-and-tube wiring的影响对任何居住在老房子里的人来说都是至关重要的，因为这可能对安全和保险产生持久影响。