供应YFFB多芯控制扁电缆

二、开关柜的主要特点：YFFB多芯控制扁电缆
Two. The main features of switchgear are:
1.有一、二次方案,这是开关柜具体的功能标志,包括电能汇集、分配、计量和保护功能电气线路。一个开关柜有一个确定的主回路(一次回路)方案和一个辅助回路(二次回路)方案，当一个开关柜的主方案不能实现时可以用几个单元方案来组合而成。
1. There are one or two schemes, which are the specific functional indicators of switchgear, including power collection, distribution, measurement and protection of functional electrical circuits. A switchgear has a definite main circuit (primary circuit) scheme and an auxiliary circuit (secondary circuit) scheme. When the main scheme of a switchgear can not be realized, it can be combined with several unit schemes.
2.开关柜具有一定的操作程序及机械或电气联锁机构，实践证明: 无“五防”功能或“五防功能不全”是造成电力事故的主要原因。
2. Switchgear has certain operating procedures and mechanical or electrical interlocking mechanism. Practice has proved that no "five-prevention" function or "five-prevention function is not complete" is the main cause of power accidents.
3.具有接地的金属外壳，其外壳有支承和防护作用.因此要求它应具有足够的机械强度和刚度，保证装置的稳固性,当柜内产生故障时,不会出现变形,折断等外部效应。同时也可以防止人体接近带电部分和触及运动部件，防止外界因素对内部设施的影响;以及防止设备受到意外的冲击。YFFB多芯控制扁电缆
3. The metal shell with grounding has supporting and protective functions. Therefore, it is required that it should have sufficient mechanical strength and stiffness to ensure the stability of the device. When the cabinet fails, there will be no deformation, breakage and other external effects. At the same time, it can prevent the human body from approaching the live part and touching the moving parts, prevent external factors from affecting the internal facilities, and prevent the equipment from accidental impact.