供应YCBP屏蔽扁电缆

**章 高压开关柜概述
Chapter 1 Summary of high voltage switchgear
一、基本概念
I. Basic Concepts
1.开关柜（又称成套开关或成套配电装置）：它是以断路器为主的电气设备；是指生产厂家根据电气一次主接线图的要求，将有关的高低压电器（包括控制电器、保护电器、测量电器）以及母线、载流导体、绝缘子等装配在封闭的或敞开的金属柜体内，作为电力系统中接受和分配电能的装置。YCBP屏蔽扁电缆
1. Switch cabinet (also known as a complete set of switches or distribution devices): It is a circuit breaker-based electrical equipment; refers to the manufacturer in accordance with the requirements of the electrical primary wiring diagram, the relevant high and low voltage electrical appliances (including control electrical, protection electrical, measuring electrical) and busbar, current-carrying conductor, insulator and other assembly in a closed. An open or open metal cabinet used as a device for receiving and distributing electrical energy in a power system.
2.高压开关设备：主要用于发电、输电、配电和电能转换的高压开关以及和控制、测量、保护装置、电气联结（母线）、外壳、支持件等组成的总称。
2. High-voltage switchgear: High-voltage switchgear mainly used for power generation, transmission, distribution and power conversion, as well as control, measurement, protection device, electrical connection (bus), housing, support components and other components of the general term.
3.开关柜防护要求中的“五防”：防止误分误合断路器、防止带电分合隔离开关、防止带电合接地开关、防止带接地分合断路器、防止误入带电间隔。
3. The "five precautions" in the protection requirements of switchgear: prevent mis-splitting and mis-closing circuit breakers, prevent live splitting and disconnecting switches, prevent live closing and grounding switches, prevent ground splitting circuit breakers, prevent mis-entering live intervals.
4.母排位置相序对应关系：
4. the corresponding relationship between bus position and phase sequence.
表1-1
Table 1-1
相别 漆色 母线安装相互位置YCBP屏蔽扁电缆
Installation of different phase lacquer busbars
垂直 水平 引下线
Vertical horizontal lead off line
A相 黄 上 远 左
A Huang Xiang Shang Yuan Zuo
B相 绿 中 中 中
B in green
C相 红 下 近 右
C phase red right near right
5.防护等级:外壳、隔板及其他部分防止人体接近带电部分和触及运动部件以及防止外部物体侵入内部设备的保护程度。
5. Protection Level: The degree of protection of enclosures, partitions and other parts to prevent the human body from approaching the electrified part and touching the moving parts, and to prevent the intrusion of external objects into the internal equipment.
表1-2
Table 1-2
防护等级 简 称 定 义
Definition of protection level
IP1X 防止直径大于50mm的物体 1.防止直径大于50mm的固体进入壳内；2.防止人体某一大面积部分（如手）意外触及壳内带电部分或运动部件YCBP屏蔽扁电缆
IP1X prevents objects larger than 50mm in diameter 1. prevents solids larger than 50mm from entering the shell; 2. prevents a large area of the human body (such as hands) from accidentally touching a charged part or moving part of the shell
IP2X 防止直径大于12.5mm的物体 1.防止直径大于12.5mm的固体进入壳内；
IP2X prevent objects with diameters greater than 12.5mm 1. prevent solids entering a diameter greater than 12.5mm from entering the shell.
2.防止手触及壳内带电部分或运动部件
2. prevent the hand from touching the live part or moving part of the shell.
IP3X 防止直径大于2.5mm的物体 1.防止直径大于2.5mm的固体进入壳内；
IP3X prevent objects with diameters greater than 2.5mm 1. prevent solids entering a diameter greater than 2.5mm from entering the shell.
2.防止厚度(直径)大于2.5mm工具或金属线触及柜内带电部分或运动部件
2. prevent thickness (diameter) greater than 2.5mm tool or metal wire touching the live part or moving part of the cabinet.
IP4X 防止直径大于1mm的物体 1.防止直径大于1mm的固体进入壳内；
IP4X prevent objects with diameters greater than 1mm 1. prevent solids entering a diameter greater than 1mm from entering the shell.
2.防止厚度(直径)大于1mm工具或金属线触及柜内带电部分或运动部件
2. prevent thickness (diameter) greater than 1mm tool or metal wire touching the live part or moving part of the cabinet.
IP5X 防 尘 1.能防止灰尘进入达到影响产品的程度；
IP5X dust-proof 1. prevents dust entry from affecting the product.
2.完全防止触及柜内带电部分或运动部件
2. completely prevent touching parts or moving parts in the cabinet.
IP6X 尘 密 1.完全防止灰尘进入壳内；2.完全防止触及柜内带电部分或运动部件
IP6X dust dense 1. completely prevent dust from entering the shell; 2. completely prevent touching the live parts or moving parts in the cabinet