急需RS485(STP-120)4对0.4结构图片

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低烟无卤耐火型 除阻燃低烟无卤型的性能以外，其耐火试验应能通过GB/T19216-2003在火焰条件下或光缆的线路完整性实验中的规定，在750℃ 90min，2A熔丝不熔断。

电子计算机用屏蔽电缆，选用介电常数小的高压聚作绝缘。采用对绞、对屏、总屏（或三线组合、组屏蔽、组屏总屏）等结构形式，具有介质损耗小、传输传号能力强、抗性能好等特点，能可靠地传输微弱的模拟，可广泛地应用于发电、冶金、石油、化工、轻纺悼门的检测和控制用计算机或自动化装置，以及一般的工业计算机上。

RS-485通讯电缆在一般采用双绞线就可以，但在要求比较高的下可以采用带屏蔽层的双绞电缆。在使用RS485通讯时，对于特定的传输线路，主机（召测设备）到仪表的485口间的电缆长度与数据传输的波特率成反比；这个长度主要受的失真以及噪声的影响所影响。理论上RS485的传输距离能达到1200米，但实际应用中传输距离要小于1200米，具体长度受周围的影响。

HYAT22：铜芯实心聚烯烃绝缘填充式挡潮层聚护套钢带铠装聚氯护套市内通信电缆

KFVR22 氟塑料绝缘钢带铠装聚氯乙烯护套控制软电缆。

ZR-HYAT53：铜芯实心聚烯烃绝缘填充式挡潮层聚护套钢塑带铠装阻燃聚护套市内通信电缆

使用条件 ●环境温度：-40～50℃ ●月平均最大相对温度：95%( 25℃) ●安装敷设环境温度：≥-10℃

and he faithfully transmitted the conversation to his master,10 that she had had a long talk with Courtney three days before at the instance of his mother, and he had told her in all simplicity that an English lord had suggested to him that he should marry Elizabeth, since he could not now hope to obtain the Queen. If he took the Princess either he or his heirs might hope to succeed to the throne as the Queen was getting old. The idea seems to have originated with Lord Paget, who was doubtless the lord referred to by Courtney, and who thought to stand well with all parties in future by the device. As he was the principal supporter in the Privy Council of the Spanish match,

铠装通信电缆护套：黑色高分子量低密度聚或聚氯乙稀护套。护套厚度可取决于基本电缆外径。

低烟无卤阻燃计算机电缆 ：用途：本电缆具有低压电容和低电感，并具有良好屏蔽性能和抗性能，因而防爆性能优于一般计算机电缆和控制电缆．它适用于有防爆要求的集散和自动化检测控制等要求低烟无卤阻燃电路中作传输线． 使用特性：额定电压：U0/U:300/500V.高工作温度:聚绝缘不超过70℃,交联聚绝缘不超过90℃,辐照交联聚绝缘不超过105℃。低温度:固定敷设-40℃,诽定敷设-15℃。小弯曲半径:无铠装电缆应不小于电缆外径的6倍;有铠装电缆应不小于电缆外径的12倍℃。

227IEC RVVB 铜芯聚氯绝缘聚氯护套平型连接软电线 连接用。

BPYJP3VP2：交联聚绝缘铝（铝塑）带（扎纹）纵包分屏蔽铜带绕包总屏蔽聚氯护套变频器电缆。

KVVP2 铜芯聚氯绝缘聚氯护套铜带屏蔽控制电缆。

◎ 通用级-CMG级（垂直Vertial Tray Flame ）　这是 UL中通用级电缆（General Pure Cable），适用为UL1581。商用级和通用级的条件类似，同为加拿大和美国认可使用。通用级电缆没有烟雾浓度规范，一般仅应用于同一楼层的水平走线，不应用于楼层的垂直布线上。

much more serious negotiation was running its course at the same time. When the Emperor had been informed that Philip had desisted from the pursuit of the match for himself, he begged him to support the suit of the Archduke Ferdinand. It was considered unadvisable to mention at first which of the Archdukes was the suitor, but Philip himself made no secret of his preference to Ferdinand, who was a narrow bigot of his own school; so the Spanish ambassador in England was instructed to forward the matter to the best of his ability, in conjunction with an imperial ambassador who was to be sent for the purpose. When the instructions arrived, matters had gone so far that a secretary had already come to London from the Emperor with letters for the Queen and a portrait of Ferdinand. This had been arranged by Sir Thomas Challoner, who had recently been in Vienna; but much doubt existed as to the sincerity of Philip’s professions of good-will towards the affair. Indeed, those who were most in favour of it appear to have though

国标生产 严把关；户外电话线（带油膏填充和铠装-防紫外线和防水-可埋在地下）HYAT53通信电缆填充石油膏系列：主要用于对多导体电线电缆缆芯的空隙进行填充，起防潮和绝缘作用。具有较高的熔融温度，适宜的粘度和良好的低温韧性；热性和抗水性优异；电绝缘性能强、损耗小，与电缆内外护套的相容性好，是一种优良的加热应用型电缆填充复合物。聚烯烃绝缘石油膏填充市内通信电缆HYAT电缆型号有ZRC-HYAT HYAT HYAT23 HYAT53 ZRC- HYAT23 ZRC-HYAT 53HYYT; ZRC-HYAT; 低烟无卤通信电缆填充石油膏系列WDZ-HYAT WDZ-HYAT23 WDZ-HYAT53充油通信电缆? HYAT??? HYAT23? HYAT53阻燃充油通信电缆? ZRC-HYAT;WDZ-HYAT;ZR-HYAT53? WDZ-HYA53；ZR-HYA23通信电缆型号：HYA;HYA22;HYA23;HYA53;ZRC-HYA;ZRC-HYA53;WDZ-HYA；充油通信电缆：室外充油电缆HYAT? HYAT23? HYAT53HYAT;HYA23;HYAT53;HYAT22;HYYT;ZRC-HYAT;WDZ-HYAT;ZR-HYAT53; 自承式通信电缆-索道通信电缆型号：HYAC，HYYC铠装音频电缆；HYA22；HYA23；HYA53；HYAT22；HYAT23；HYAT53；ZRC-HYA53；WDZ-HYA53；ZR-HYA23；ZR-HYAT23 WDZ-HYAT53铠装音频电缆型号： HYA53、HYAT53 、HYV22、HYA22（防鼠、地埋）?

导 线：铜线直径为、0．40、O．50、O．60、0．70、O．80、O．90mm。绝缘材料：高密度聚。绝缘单线：在导线上连续挤制绝缘材料，采用规定的1 0种色谱以便识别，并保证电缆的电气性能。绝缘线对：将绝缘单线按规定的色谱、不同的节距均匀地绞合成线对。缆芯结构：绝缘单线绞合成对后采用同芯式或单位式绞合成缆芯，各单位采用不同的扎纱，以便施工、识别。缆芯包带：缆芯外非吸湿性、非吸油性的绝缘带。屏 蔽：用轧纹(或不轧纹)双面涂塑铝带纵包于缆芯包带之外，两边搭接粘合。护 套：黑色低密度、中密度或高密度聚。识别标记：电缆外表面打印识别标记。标记内容：电缆型号、长度、公司名称及制造年份。标记间隔不大于1 m。其他结构：根据使用、用户要求，可提供各种形式的电缆，以各种敷设条件的要求。