1. NM / Flexible Cable
One of the most common types of wiring you'll see in homes is the NM (Non-Metallic) or flexible cable. These cables typically contain three or more wires encased in a protective sheath. The color of the sheath often varies depending on the wire gauge and circuit type. For instance, gray-sheathed cables are frequently used for underground installations. They provide an easy and cost-effective solution for many indoor wiring needs.2. Armored Cable
In certain areas, homeowners might be restricted from using flexible NM cables due to local regulations. In such cases, armored cables—also known as BX—are a viable alternative. These cables feature a flexible metallic sheath that offers enhanced protection to the internal conductors. However, armored cables are generally not permitted for use in commercial buildings, where more stringent safety standards apply.3. Underground Feeder Cable
If you're curious about underground feeder cables, they belong to the NM family but are specifically designed for damp environments. These cables are ideal for burying directly in the ground and are commonly used to power outdoor fixtures. Unlike regular NM cables, the UF (Underground Feeder) variant has a solid plastic sheath that's typically gray. This makes them well-suited for outdoor applications.4. Low-Voltage Wires
For circuits operating below 50 volts, low-voltage cables are the go-to choice. These wires are often found in devices requiring minimal electricity, such as landscape lighting, doorbells, thermostats, and sprinkler systems. Using these cables safely means ensuring they remain disconnected when not in use to prevent accidental activation. Their design ensures they pose no risk of electric shock, making them a reliable option for specific applications.5. Solar Cables
Solar cables are specialized for connecting photovoltaic power systems. Known for their robust construction, these cables can endure harsh weather conditions and maintain functionality over extended periods. With a lifespan of up to 30 years, they are built to withstand temperatures up to 120°C for up to 20,000 hours. Their design features fine copper strands encased in a UV-resistant, flame-retardant sheath, ensuring durability and reliability.6. Phone and Data Wires
Category 5 cables, which include phone and data wires, consist of four to eight wires bundled together. These cables excel in data transmission efficiency, making them popular among electricians. Ethernet cables, a subset of Category 5, are particularly favored for their high capacity and superior performance. While they operate at lower voltages, it’s crucial to keep them separate from household wiring to avoid interference. Handling these wires with care is essential to prevent damage or malfunction. Before purchasing any cables for your home, ensure the wire insulation meets quality standards. Aluminum and copper are both excellent choices for this purpose. Look for a certification marking to confirm the product’s reliability. Voltage regulation and short-circuit ratings should also guide your decision. Finally, opt for a reputable brand; cheaper alternatives may compromise safety. Investing in quality cables ensures long-term peace of mind and functionality.Plano-concave cylinder lens, PCV Cylindrical Lens are commonly used to turn a collimated laser source into a line generator. The PCV Cylindrical lens and Illumination Grade Plano-Convex Cylindrical Lens can be used together for beam expander applications. Broadband Cylindrical lens feature precision specifications for the most demanding applications. Integration of these cylindrical lens is facilitated by square form factors allowing convenient mounting options. The cylindrical lens are widely used in the fields of medical, electronic, information, agriculture, communication and etc.
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Specification of our cylinderical lens as follow:
*Material: BK7,Ge,UV-grade fuse silica(JGS1,JGS2,JGS3)or other optical materials
*Dimension Tolerance: +0.0 -- -0.1mm
*Center Thickness: +/-0.1mm
*Focal Length Tolerance: +/-1%
*Surface Quality:20/10
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture>90%
*Chamfer: 0.25mm at 45 degree typical
*Coating Optional
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China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com