湘潭低烟无卤WDZ-830-CA04通讯电缆



湘潭低烟无卤WDZ-830-CA04通讯电缆
低烟无卤电缆,是指不含卤素(F、Cl、Br、I、At)、不含铅镉铬汞等环境物质的胶料制成,燃烧时不会发出有毒烟雾的环保型电缆。
低烟无卤电缆基本概述:● 其中卤素指针为:所有卤素的值≦50PPM(根据法规PREN 14582)● 燃烧后产生卤化氢气体的含量<100PPM(根据法规EN5067-2-1)● 燃烧后产生的卤化氢气体溶于水后的PH值≧4.3(弱酸性) (根据法规EN-50267-2-2)● 产品在密闭容器中燃烧后透过一束光线其透光率≧60%(根据法规EN-50268-2)● Pb<90PPM,Cd、Cr6+、Hg、PBBs、PBDEs均小于5PPM
低烟低卤、低烟无卤阻燃电缆特点及用途:本产品适用于交流额定电压450/750V及以下的地铁、高层建筑、商场、剧院、发电站、化学工厂、城市广场及其他公用事业等对电缆阻燃特性要求高的场合。电缆的无卤低烟、低卤低烟特性,当火灾发生时,蔓延速度慢,烟浓度低,可见度高,有害气体释放量小,便于人员撤离。
450/750V控制电缆KVV按GB9330《塑料绝缘控制电缆》、IEC60227《额定电压450/750V及以下聚氯乙烯绝缘电缆》以及IEC60502《额定电压1-30KV挤包绝缘电力电缆及附件》等标准制造。
Spin cassette XF5-273 communication cable transfer box, adopting advanced technology at home and abroad, in accordance with the international advanced standard production in the eighty s of cable wiring e, for the city, the town of telecommunication network backbone cable and wiring cable transfer. Features: 1. The connection jumper adopts rotary clamp-type connection and is sealed with silica gel on the metal clip, because it is not only reliable and durable, but also easy to operate and repair without stripping. 2. The wiring terminals in the handover box shall be arranged in 25 pairs as a basic unit, consistent with the basic units of the local telephone cables and marked with Numbers on the terminals to facilitate construction and maintenance. 3. The structure, arrangement and installation dimensions of the wiring modules are exactly the same as those of 3M products and can be used for each other. 4. The box body is treated by electrostatic spraying, beautiful and generous, with clear lines, good anti-corrosion and waterproof performance and long service life. Main technical parameters: the environment temperature: - 40 ℃ ~ + 65 ℃ atmospheric pressure: 70 ~ 106 kpa relative humidity: 95% or less is random ends and insulation resistance between terminals and ground > 5 x 104 Μ Ω. When connecting any two ends and any terminals and grounding to 1000V ac, there shall be no breakdown or flying arc in 1min. Contact resistance between wire and terminal < 5 x lO - 3 Ω.
燃烧气体的腐蚀性小,也避免了对仪器设备的损害,低卤、无卤的特性,使得电缆材料在耐老化和耐紫外线及其它辐照性能大大提高,从而延长电缆的使用寿命。低烟无卤WDZ-830-CA04通讯电缆
低烟无卤电缆使用特性:1.电缆额定电压UO/U:450/750V,交流聚烯烃UO/U为0.6/1KV2.电缆长期工作温度为:-20℃-90℃,-40℃-105℃3.推荐弯曲半径:无铠装电缆应不小于电缆外径的6倍,有铠装或铜带屏蔽结构的电缆应不小于电缆外径的12倍。
低烟无卤电缆主要技术指标:1.电缆应经受环境温度下工频电压试验3kV,5min不击穿2.电缆的透光率应符合下表电缆外径 D(mm)透光率(%)≥电缆外径 D(mm)透光率(%)≥D>40705<D≤105010<D≤4060D≥540 3.电缆的不延燃性(阻燃特性):应通过GB12666.5-90中B类成束燃烧试验。单根电线电缆垂直燃烧试验应通过GB12666.2-90 4.卤酸气体释放量,符合IEC754-1
5.燃烧气体的PH值和导电率,符合IEC754-2 PH≥4.3 电导率≤10μS/mm。
从安全管理的角度看,信息不准、沟通不畅是个大问题。从近年的事故分析,相互间缺乏沟通或许是近年基建工作频频出问题的通病。因基建工作涉及工程管理部门、安监部门、运行维护部门和各种各样的作业队伍,这么多的部门、单位,若无组织无纪律,缺乏统一的协调和指挥,相互间缺乏横向沟通,或将出现难以弥补的漏洞,稍微不慎将引发悲剧,让作为安全管理的人员,不得不深思。从近年的外包工程来看,出问题往往都是出在基本的《安规》没有做到位。
Model specification of frequency conversion cable: series code BP frequency conversion cable; Insulation code: YJ cross-linked polyinsulation; V polyurethane sheath; E halogen-free low smoke polyolefin sheath; Shielding code P copper wire braided shielding; P1 copper wire wound shielding; P2 copper band shielding; P3 aluminum strip shielding; TP2 concentric conductor + copper band shielding structure; P1-2 double shielding of copper wire winding + copper tape wrapping; PX12 copper band shielding + tin coated copper wire braided double shielding; Armor code 22 steel belt armor; 32 steel wire armouring; Flame retardant code ZR common flame retardant type; WDZ low smoke halogen-free flame retardant type.
Flame retardant grade: C for fire temperature: 815 ℃ or higher for fire time: 20 min into a bundle of cable laying nonmetallic material volume: acuity 1.5 litres/m carbonized height: 2.5 meters or less self-extinguishing time: 1 h or less;
可以采用任何一种方式敷设,更适用于岩石地区的直埋敷设。HYA53、HYA553型号电缆只限于特殊情况下使用,使用时必须进行气压维护。有阻燃。在一定条件下,也可用于传输2048kbit/s以上的数字信号。

低烟无卤电缆代号、名称及含义:项目代号含义系列代号DLDWLDK低烟低卤低烟无卤控制电缆绝缘材料VJEF聚氯乙烯交联聚烯烃丁腈热塑体护套材料VGS聚氯乙烯热固性护套热塑性护套屏蔽材料PP2铜网或镀锡铜网铜带/塑复合带铠装材料2232钢带细钢丝导体种类ABR独股导体7股绞合导体多股绞合导体;生产范围截面(mm2):0.5、1.0、1.5、2.5、4、6、10、16、25。
低烟无卤电缆主要用途:该产品阻燃性能优越,燃烧时烟度甚少,无腐蚀性气体逸出,广泛应用于核电站、地铁车站、电话交换机及计算机控制中心、高层建筑大楼、宾馆、广播电视台、重要军事设施、石油平台等,以及人员较集中,空气密度低的场所。
低烟无卤电线特性:(1) 抗张强度比一般PVC电线大:一般PVC电线抗张强度大于1.05Kgf/mm2,而低烟无卤电线抗张强度大于1.2Kgf/mm2;(2) 具有良好的耐候性(-30℃~105℃);(3) 具备良好的柔软度(硬度为80—90);(4) 具有非移性(因为此产品配方中不用添加可塑剂,故不会有移形性);(5) 燃烧时不会产生有毒黑烟(会产生少量白色烟雾);(6) 具有较高的体积电阻率:PVC电线一般为1012~1015Ω/cm3,低烟无卤电线大于1016Ω/cm3;(7) 具有良好的耐高压特性:PVC电线一般耐10KV以上,而低烟无卤电线高达15KV以上;(8) 具有良好的弹性和粘性。
KA1-2常闭触电断开,使KA2线圈不得电。KA1-3常开闭合,使接触器KM线圈得电,KM-3常开闭合自保。电机启动。,松开按钮SB,看图中各元件动作状况,由于这时接触器KM吸合自保,所以电机连续运行。咱们看图中变化,由于KM吸合,常闭触点KM-1断开,常开触点KM-2闭合。,再次按下SB不松开,由于这时KM-1是断开的,KM-2是闭合的,所以,KA2线圈得电,KA2-1断开,使KA1线圈不能得电。
公司声明,有问题的电缆绝不出厂严把质量关BBP-VVPBP-VVPP2BP-VVPPP2BP-VVP3BP-YJVPBP-YJPVPP-YJPVP2BP-YJVP2BP-YJP2VP2BP-YJP2VPBP-YJVP2PBP-YJVP3BP-YJP3VPBP-YJP3VP2ZR-BPYJVPZR-B。
Low smoke zero halogen flame retardant cable insulation using crosslinked poly (do not contain halogen, sheath used do not contain halogen polyethylene thin hydrocarbon material, so the set of all materials do not contain halogen, chung cable cable released when small amounts of smoke, it won't produce a strong acid mist, functioning, toxicity is small.

