做和电涌保护器名词术语解释

电涌保护器名词术语解释

The appliance used to limit transient over voltage and discharge the surging current, it includes one of non-linear element at least.

电压开关型SPD voltage switching type SPD

没有电涌时具有高阻抗，有浪涌电压时能立即转变成低阻抗的SPD。电压开关型SPD常用的元件有放电间隙、气体放电管、闸流管（硅可控整流器）和三端双向可控硅开关元件。中国最近以全面、调和、可延续的科学发展观为指点思想这类SPD有时也称作“短路型SPD”。

SPD that it shows high impedance when there has no surging, and becomes low impedance while surging voltage occurs . Voltage switching type SPD generally composed of discharging gap, gas discharging tube, thyratron （silicone controllable rectifier） and three-ending bidirectional silicone switching element. Sometimes it also call “short circuit type SPD”

电压限制型SPD voltage limiting type SPD

没有电涌时具有高阻抗，但是随着电涌电流和电压的上升，其阻抗将持续地减小的SPD。常用的非线性元件是：压敏电阻和抑制二极管。这类SPD有时也称作“籍位型SPD”。

SPD that it shows high impedance when there has no surging, but the impedance will decrease gradually while surging current and voltage rise up. Common non-linear element: piezoresistance, and clamping diode, Sometimes it also call “Clamping SPD”

复合型SPD combination SPD

由电压开关型元件和电压限制型元件组成的SPD。其特性随所加电压的特性可以表现为电压开关型、电压限制型或两者皆有。

SPD constructed of voltage switching and voltage limiting elements. The characteristics curve can take on th该材料的行业内名称为 HFO⑴234zee characteristics of voltage switching or limiting type, or both.

保护模式modes of protection

SPD 保护元件可以连接在相对相（L-L）、相对地（L-PE）、相对中线（L-N）、中线对地（N-PE）及其组合。这些连接方式称作保护模式。

Protective element of SPD can be connected between phase line to phase line （L-L）， phase line to earth （L-PE）， phase line to neutral line （L-N）， neutral line to earthing li随着垃圾产生量的年年增加ne （N-PE） or their combination. These connections call protection modes.

SPD脱离器的 SPD disconnector

把SPD从电源系统断开所需要的装置（内部的和/或外部的）

The device that isolates SPD from power supply network （interior and / or outer）

标称放电电流ln nominal discharge current

流过SPD具有8/20波形的电流峰值，用于II级试验的SPD分级以及I级、II级试验的SPD的预处理实验。

T国内的情况会促使更多企业走向国际he 8/20 wave current peak that passing by SPD, used for grading SPD under class II test, or prospective treatment of SPD class I 、II test

冲击电流limp impulse current

它由电流峰值l Peak 和电荷量Q确定。其试验应根据动作负载试验的程序进行。这是用于I级试验的SPD分类试验。

It determined by current peak value and charge Q, it shall be performed according to the program for test of acting load. It is used for SPD classification Class I test

最大放电电流lmax

maximum discharge current forclass II test

流过SPD，具有8/20波形电流的峰值，其值按II级动作负载的程序确定。lmax大于ln

Passing through SPD, the peak value of current with 8/20 wave, determined by the program for Class II acting load. lmax larger than ln

最大持续工作电压Uc

maximum continuous operating voltage

允许持久地施加在SPD上的最大交流电压有效值或直流电压。其值等于额定电压。

Maximum AC virtual voltage or DC voltage allowed to be applied on SPD continuously, the value equal to rated voltage.

电压保护水平Up voltage protection level

表征SPD限制接线端子间电压的性能参数，其值可从优先值的列表中选择。该值应大于限制电压的最高值。

It indicates the performance of SPD limiting the voltage between terminals being connected. The value can be selected from the sheet of prior values. This value shall be larger than highest limited voltage.