N-S供电系统的特点有哪些

  N-S供电系统的特点有哪些

  答:(1)系统正常运行时,专用保护线上不有电流,只是工作零线上有不平衡电流。 PE 线对地没有电压,所以电气设备金属外壳接零保护是接在专用的保护线 PE 上,安全可靠。

  (2)工作零线只用作单相照明负载回路。

  (3)专用保护线 PE 不许断线,也不许进入漏电开关。

  (4)干线上使用漏电保护器,工作零线不得有重复接地,而 PE 线有重复接地,但是不经过漏电保护器,所以 TN-S 系统供电干线上也可以安装漏电保护器。

  (5)TN-S方式供电系统安全可靠,适用于工业与民用建筑等低压供电系统。

OCA Sheet

Oca Sheet

Oca

OCA (Optically Clear Adhesive) glue sheet is a type of adhesive film that is used in the assembly of electronic devices, particularly in the display industry. It is a transparent and optically clear adhesive that is used to bond different layers of a display module together. OCA glue sheets are commonly used in the manufacturing of smartphones, tablets, and other electronic devices with Touch screens or LCD displays.


The main purpose of OCA glue sheets is to provide a strong and reliable bond between the layers of a display module, while also ensuring optical clarity and minimal distortion. It helps to eliminate air gaps and improve the overall visual quality of the display by reducing reflections and enhancing color vibrancy.

OCA glue sheets are typically made of a high-quality acrylic material that is optically transparent. They are available in various thicknesses and sizes to suit different display applications. The sheets are usually pre-cut to the required dimensions and then applied to the display layers using a lamination process.

Overall, OCA glue sheets play a crucial role in the manufacturing of electronic devices with displays, providing a reliable and visually pleasing bonding solution.

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Dongguan Jili Electronic Technology Co., Ltd. , https://www.jltouch.com

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