零线

A resistor is connected between the output end of the live wire and the output end of the earth wire, another resistor is connected between the output end of the null line and the input end of the earth wire, a neon lamp in a photoelectric coupling switch is connected at the two ends of the earth wire switch in parallel after being connected with the resistors in series, one end of a light sensitive resistor in the photoelectric coupling switch GR2 is connected with the anode DC+ of an integrated circuit IC power in the creepage protector, the other end of the light sensitive resistor is connected with the anode of a diode D3, the cathode of the diode D3 is connected with the triggering pole of the silicon-controlled rectifier SCR in the creepage protector, the neon lamp and the light sensitive resistor are positioned into a dark box, and a small hole which avoids the light sensitive resistor is formed on the dark box.

一种防止地线触点未导通的全能安全插头，包括各带开关的地、零、相三线接线和由零序互感器、脱扣器、放大器、整流器、试验回路和可控硅组成的漏电保护器，所述的火线输出端、地线输出端间连接电阻，所述的零线输出端、地线输入端间串接电阻，光电耦合开关内的氖灯与电阻串联后并联在地线开关两端，光电耦合开关GR2内光敏电阻的一端与漏电保护器内的集成电路IC电源正极DC＋连接、光敏电阻的另一端与二极管D3的正极连接，二极管D3的负极与漏电保护器内的可控硅SCR触发极连接，氖灯和光敏电阻置于暗箱中，暗箱上开一避开光敏电阻的小孔。

After being connected with a resistor in series, the primary input end of a transformer is connected with the output end of the live wire and the output end of the null line in parallel, the secondary output end is connected with the two ends of the earth wire switch in parallel after being connected with another resistor in series, one end of a neon lamp in a photoelectric coupler is connected with the input end of the earth wire E and a secondary end of the transformer, the other end of the neon lamp is connected with the centers of the two resistors, one end of a light sensitive resistor in a photoelectric coupling switch is connected with the anode of an integrated circuit power in the creepage protector, the other end of the light sensitive resistor is connected with the anode of a diode, the cathode of the diode is connected with the triggering pole of the silicon-controlled rectifier in the creepage protector, the neon lamp and the light sensitive resistor are positioned into a dark box, and a small hole which avoids the light sensitive resistor is formed on the dark box.

防止地线触点未导通的全能安全插头，包括各带开关的地、零、相三线接线和由零序互感器、脱扣器、放大器、整流器、试验回路和可控硅组成的漏电保护器，变压器初级输入端串联电阻后并接在火线输出端和零线输出端，次级输出端与电阻串联后并联在地线开关两端，光耦内氖灯的一端与地线E输入端和变压器次级的一端连接，氖灯另一端与二电阻的中心连接，光电耦合开关内光敏电阻的一端与漏电保护器内的集成电路电源正极连接、光敏电阻的另一端与二极管的正极连接，二极管的负极与漏电保护器内的可控硅触发极连接，氖灯和光敏电阻置于暗箱中，暗箱上开一避开光敏电阻的小孔。

Is L1,L2,L3,N,PE.open the control-box the confirm,in control-box, connected the yellow green line is the grounding PE .3 black lines togother is null line N,for the machine must connect the Nnull line

接电源的工业插头按插头上标号接上对应电线，即L1，L2，L3，N，PE。打开控制箱门确认，控制箱内连接黄绿线的是地线PE，3根并在一起的黑线是零线N。本机必须连接N线。

Wire connecting cavity is insolated form function cavity. There are five terminals in the function cavity, three ones are phase, one is neutral, the fifth is earth, there is earth screw on housing.

接线腔与元件腔分开，接线腔设有5个接线柱，其进线为3个相线、1个零线、1个保护线，壳外设有外接地螺钉。

Through the analysis about the measure data of three-phase, four wires electric meter in the different modes, we can know that whether the electric meter is connected to earth wire or not, the error is different.

本文通过对三相四线有功电能表在不同方式运行中的计量分析，可以知道接入零线与未接零线在运行中出现同样故障时，其计量的误差不同，会造成计算错误。

It is found through analysis of the shear line over Qingzang Plateau from May to August in 1979 by the use of scientific experimental data that the plateau shear line can be generated respectively in the easterlies, in the westerlies and in the neighourhood of the zero line between easterlies and westerlies.

切变线；无风带；西风带；毫巴；东风带；大尺度环流；本文利用科实资料对1979年5—8月青藏高原切变线进行分析后发现：高原切变线可以分别在东西风带分界的零线附近、西风带中和东风带中产生。

Left pole and upper pole of single phase 2 pole socket should connect to phase line and right pole and under pole should connect to neutral; right pole of single phase 3 pole socket should connect to phase line and left pole should connect to neutral line.

单相两插座，面对插座的右孔或上孔相线连接，左孔或下孔与零线连接；单相三孔插座，面队插座的右孔与相线连接，左孔与零线连接

Neutral current is the current that flows in the neutral leg of a paralleling system. Often, this term is used in referenceto circulating currents or cross currents.

零线电流指的是通过并联系统零线的电流，在谈及环流电流或者交叉电流时常会提到这个术语。

Neutral Current Neutral current is the current that flows in the neutral leg of a paralleling system. Often, this term is used in reference to circulating currents or cross currents.

零线电流零线电流指的是通过并联系统零线的电流，在谈及环流电流或者交叉电流时常会提到这个术语。

Neutral Current Neutral current is the current that flows in the neutral leg of a paralle*** system. Often, this term is used in reference to circulating currents or cross currents.

零线电流零线电流指的是通过并联系统零线的电流，在谈及环流电流或者交叉电流时常会提到这个术语。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。