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} } </style> <div class="ld_head hidden-md hidden-xs hidden-sm"> <div class="top_line"> <div class="big"> <p class="fl">广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专?/p> <div class="tpline_r fr"> <div class="ld_tsearch fr"> <form name="product_myformsearch" action="/Search.aspx" method="get"> <input type="text" placeholder="可输入关键词搜索" id="search" name="keys" style=" padding-left: 21px; outline: none; height: 24px; margin-top: 7px;"> <input id="s_btn" value="" type="submit"> </form> </div> </div> <br /> </div> </div> <div class="ld_top"> <div class="big"> <h1 class="fl"><a href="/"> <img title="广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专? alt="广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专? src="/Templates/cn/images/top_logo.jpg" /></a></h1> <div class="ld_nav fr"> <a href="/" title="首页">首页</a> <a href="/About.html" title="关于商友">关于商友</a> <a href="/ProdClass/ProductClass-3-1.html" title="产品信息">产品信息</a> <a href="/News/NewClass-2-1.html" title="新闻动?>新闻动?/a> <a href="/CibsService/NewClass-17-1.html" title="服务与支?>服务与支?/a> <a href="/News/NewClass-6-1.html" title="工程案例">工程案例</a> <a href="/Contact.html" title="联系我们">联系我们</a> <div style=" margin-top: 4px; 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Up(太阳能电池电?  WP(太阳能电池板功率)  η(预留系数)<BR> 其中:太阳能电池电压已知?7.4V<BR>                 预留系数?20%<BR><BR><STRONG>一:首先计算出电流</STRONG> (I= W/U)  <BR>    如:12V蓄电池系统; 40W的灯2只,?0瓦?nbsp; <BR>  电流 = 80W÷12V = 6.7A  <BR><STRONG>二:计算出蓄电池容量需?</STRONG>(C=I*H*(T+1)*<SPAN style="FONT-FAMILY: 宋体; COLOR: black; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt">η</SPAN><SPAN style="COLOR: black; mso-bidi-font-family: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt" lang=EN-US></SPAN>) <BR>  如:路灯每夜累计照明时间需要为满负?nbsp;8小时(h);  <BR>  (如晚上8?0开启,?1?0关闭1路,凌晨4?0开?路,凌晨6?0关闭?nbsp; <BR>  需要满足连续阴雨天5天的照明需求。(5天另加阴雨天前一夜的照明,计6天)  <BR>  蓄电?nbsp;= 6.7A × 8h ×?+1)天 = 6.7A × 48h = 321.6AH  <BR>  另外为了防止蓄电池过充和过放,蓄电池一般充电到90%左右;放电余?0%左右?nbsp; <BR>  所?21.6AH也只是应用中真正标准?0%左右?nbsp; <BR>    实际容量计算方法?BR>    实际蓄电池需?321.6AH ?0%预留容量、再?0%损?BR>    321.6AH ÷ 80% × 120% = 482.4AH<BR><BR><STRONG>三:计算出电池板的需求峰值(WP?/STRONG> (WP=(I*H*η)Up/h)<BR>   路灯每夜累计照明时间需要为 8小时(h);  <BR>  ★:电池板平均每天接受有效光照时间为4.5小时(h);  <BR>  最少放宽对电池板需?0%的预留额?nbsp; <BR>  WP÷17.4V = ?.7A × 8h × 120%)?nbsp;4.5h  <BR>  WP÷17.4V = 9.33  <BR>  WP = 248.7(W?nbsp; <BR>  ★:4.5h每天光照时间为长江中下游附近地区日照系数?nbsp; <BR>  另外在太阳能路灯组件中,线损、控制器的损耗、及镇流器或恒流源的功耗各有不同,实际应用中可能在5%-25%左右。所?48.7W也只是理论值,根据实际情况需要有所增加?BR>    太阳能板实际需?电池板实际需?248.7W × 120% = 298.32W <BR><BR><BR> <br> </div> </div> </div><div style="clear:both"></div></div> <div class="ld_footer hidden-md visible-lg-block hidden-xs hidden-sm"> <hr/> <div class="big"> <div class="ft_left fl"> <a href="/"><img title="广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专? alt="广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专? src="/Templates/cn/images/ft_logo.jpg"/></a> <h2>室内外工程照明灯具制造商</h2> </div> <div class="ft_middle fl"> <h3>热销产品</h3> <p><a href="/ProdClass/LuDeng-107-1.html">路灯</a>|<a href="/ProdClass/JingGuanDeng-108-1.html">景观?/a>|<a href="/ProdClass/gaoganlighting-110-1.html">高杆?/a>|<a href="/ProdClass/tingyuandeng-109-1.html">庭院?/a>|<a href="/ProdClass/LED-GongKuangDeng-61-1.html">led工矿?/a>|<a href="/ProdClass/SuiDaoDeng-103-1.html">隧道?/a></p> </div> <div class="ft_right fl"> <img class="fl" title="广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专? alt="广东商友照明有限公司|室内/户外工程照明,路灯,景观照明,工厂照明节能改造专? src="/Templates/cn/images/erlog.png" style="width:94px;height:auto;"/> <p>热线:王祥峰 13929249704</p> <p>Email?a href="mailto:sales@jeanrockefeller.com">sales@jeanrockefeller.com</a></p> <td style="text-align: center;"> </div> <br/> </div> </div> <div class="ld_copyright hidden-md visible-lg-block hidden-xs hidden-sm"> <div class="big" style=" width: 1134px; overflow: hidden; height: 70px; line-height: 35px; text-align: center;"> <p class="">广东商友照明有限公司(<b><a href="/News/NewClass-13-1.html">工程照明</a></b>,<b><a href="/ProdClass/JingGuanDeng-108-1.html">景观照明</a></b>,<b><a href="/ProdClass/LuDeng-107-1.html">路灯</a></b>,<a href="/ProdClass/outlighting-115-1.html" target="_blank">LED照明?/a></b>,<b>照明灯具</b>品牌专家) 版权所?<a href="//beian.miit.gov.cn" target="_blank" rel="nofollow">粤ICP?2059743?/a>   </p> <p class="">地址:中国 广东?东莞市南城街道汇金西一??</p><br/> </div> </div> <div class="banquan hidden-lg "> <p class="bq_nav"><a href="/About.html">关于商友</a>|<a href="/ProdClass/ProductClass-3-1.html">产品信息</a>|<a href="/News/NewClass-2-1.html">新闻动?/a><br> <a href="/CibsService/NewClass-17-1.html">服务支持</a>|<a href="/News/NewClass-6-1.html">工程案例</a>|<a href="/Contact.html">联系我们</a><br></p> 广东商友照明有限公司  <a href="tel:13929249704"><span class="commonfont"></span> <h3>电话</h3></a> <a href="/Contact.html"><span class="commonfont"></span> <h3>联系</h3></a> </div> </div> </div> <script> (function(){ var canonicalURL, curProtocol; //Get the <link> tag var x=document.getElementsByTagName("link"); //Find the last canonical URL if(x.length > 0){ for (i=0;i<x.length;i++){ if(x[i].rel.toLowerCase() == 'canonical' && x[i].href){ canonicalURL=x[i].href; } } } //Get protocol if (!canonicalURL){ curProtocol = window.location.protocol.split(':')[0]; } else{ curProtocol = canonicalURL.split(':')[0]; } //Get current URL if the canonical URL does not exist if (!canonicalURL) canonicalURL = window.location.href; //Assign script content. 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