天联牌光伏板黄绿BVR2.5接地线
双色接地线 黄绿接地线就是直接连接地球的线,也可以称为安全回路线,危险时它就把高压直接转嫁给地球,算是一根生命线。
现今,随着光伏发电技术的日趋成熟和大量已建成光伏电站的运营,系统安全性已经成为了保障日常生产的重要因素。以往许多人们对于“小容量”光伏电站的接地、防雷问题并不重视,但随着太阳能电池板功率和电站系统容量的增大,近年来由于接地不良造成的人身触电伤亡事件已为数不少。本文将列举在建设过程中可能会遇到的接地施工问题并浅析接地技术。
电器中,接地线就是接在电气设备外壳等部位及时的将因各种原因产生的不安全的电荷或者漏电电流导出的线路。
携带型短路接地线检验周期为每五年一次,检验项目同出厂检验。经试验合格的携带型短路接地线在经受短路后,应根据经受短路电流大小和外观检验判断,一般应予报废。
黄绿接地线简介:电器中,黄绿接地线就是接在电气设备外壳等部位及时的将因各种原因产生的不安全的电荷或者漏电电流导出的线路。(1)高压接地线作用: 高压接地线是用于线路和变电施工,为防止临近带电体产生静电感应触电或误合闸时保证安全之用。(2)高压接地线结构: 携带型高压接地线由绝缘操作杆、导线夹、短路线、接地线、接地端子、汇流夹、接地夹。(3)高压接地线制作工艺:制作工艺优良-- 导线夹、接地夹是采用优质铝合金压铸成形;操作棒采用环氧树脂彩色管,绝缘性能好,强度高、重量轻、色彩鲜明、外表光滑;接地软铜线采用多股优质软铜线绞合而成,并外覆柔软、耐高温的透明绝缘护层,可以防止使用中对接地铜线的磨损,铜线达到疲劳度测试需求,确保作业人员在操作中的安全。(4)接地线规格:按部颁规定,接地线必须是 25mm 2 以上裸铜软线制成。
高压短路接地线对地电阻要求决定了接地线的品质,一般按照电力行业DL-T879-2004技术规定要求每个截面积的接地线对地电阻不的大于下列数值:接线鼻之间测量直流电阻,对于16mm2 ,25mm2,35mm2,50mm2,70mm2,95mm2,120mm2的各种截面,平均每米的电阻值应分别小于1.24mΩ, 0.79mΩ,0.56mΩ,0.40mΩ,0.28mΩ,0.21mΩ,0.16mΩ[1] 。
ir support of it than they were; and both the Queen and Sus were for ever trying to get at Philip’s real desires in the matter. With the papers now before us, we see that if the Emperor was to be induced to give way on the question of religion, and England was to remain Protestant, the marriage would injure rather than benefit Philip’s plans; whilst a thoroughly Catholic match, by which Elizabeth would he bted to the Pope, would he cut the ground112 from under her feet and made her the humble servant of Spain. This she knew better than any one, and however much
按不同电压等级选用对应规格的接地线。
严禁不用线夹而用缠绕的方法进行接地短路。
通过在青海等地进行光伏电站EPC总承包和调研工作,发现在建设过程中接地系统常见的施工问题如下: (1)接地引下线和避雷带焊接长度不够(圆钢不应小于六倍直径,扁钢不小于两倍宽度);焊接不合格,焊接处有焊瘤、气孔和夹渣;未敲除焊渣。 (2)接地引下线、避雷带变形,脱离支架。 (3)用结构金属材料代替避雷针及接地引下线,镀锌焊接后未刷防腐漆。 (4)接地体引下线未做防腐处理。 (5)接地线穿墙时未加设保护套管。 (6)屋内电气设备外壳未与接地系统连接。 (7)电气设备接地线未与地网连接。 (8)接地体、地网安装敷设过浅(不应小于0.8米;若有冻土层,则应敷设在冻土层以下)。
公司配备了高压局放检测装备,拉力试验机,低温弯曲试验机,燃烧试验仪,绝缘电阻测试仪,电子分析天平,故障定位仪等全套检测设备,对出厂产品严格测试,我公司生产的光伏接地线,产品型号齐全,质量保证!采用BVR黄绿双色线制作,发货快 价格优,本厂接地线全部为国标线,默认孔径5MM,可定制任意孔径和长度,请用户放心订购.我厂自己生产的BVR黄绿双色线,全部按GB生产。
that at one juncture he had sed her life, and it is highly probable that the Princess was released from the Tower in May, 1554 on the recommendation of Renard, made in the name of the coming bridegroom of the Queen. De Noailles writes that she was to go to Richmond from the Tower, and was there to receive two gentlemen from the Emperor who were to sound her as to a marriage with Emmanuel of Soy. If she refused the match she was to be taken to Woodstock under guard, again a prisoner. De Noailles knew that the best way of preventing such a match was to arouse the Queen’s18 suspicion that Elizabeth was plotting with the French. So with devilish ingenuity he sent a man with a present of apples to the Princess to meet her on her arrival at Richmond
根据要求方便挂短路接地选择型的夹具。选择接地杆操作应该工作在和谐与悬点系统,额定电压,悬挂应保证员工当短路接地,接地和电气设备必要的安全距离。在前面的架接地工作结束后的员工应保持接地导体保持安全距离。使用类型与短路接地、经验确认已经停电、设备再没有电压。接地夹连接到互联网第一,然后操作杆分别线端端子夹。接地短路接地维护:类型与短路接地应在空气流通、干燥的环境中特殊的沉积位置,应仔细检查每次使用之前。发现夹子开裂、松散连接、护套损坏、铜线裸露应禁止使用