新型耐高温防腐计算机电缆本质安全电路用计算机屏蔽电缆(包括本安用DCS电缆)一：产品特点及用途：本产品低电容、低电感,具有优异的屏蔽性能及抗干扰性能，特种高温型计算机电缆采用进口氟塑料及氟橡胶等材料，能在℃环境中长期使用，产品具有不延燃、耐酸碱油水等优越特性，电缆结构专为本安防爆电路设计，不仅用于桥。
直流电阻:20℃,0.4mm铜线,小于等于148Ω/km，0.5mm铜线,小于等于95Ω/km。
2.绝缘电气强度：导体之间1min1kv不击穿导体与屏蔽1min3kv不击穿3.绝缘电阻：每根芯线与其余线芯接地，控制电缆大于10000MΩ.km,HYAT电缆大于3000MΩ.km。
5、生产范围型号额定电压(V)导体标称截面(mm2)0.50.75芯数KVVKVVP450/-10KVVP2-4-KVV22-7-6KVV32。
阻燃控制电缆型号ZR-KVVP22,ZR-KVVP2-22,ZR-KVVP2我公司长年供应：KVV、KVVR、RVV、ZR-KVV、ZRC-KVV、ZRB-KVV、ZRB-RVV、ZRC-RVV、KVVP、KVVP1、ZR-KVV22P、ZR-KVV22P2、ZRC-KVV22P2、ZRC-KVV2。
●电缆的最低敷设温度:0℃。
低于最低敷设温度时应预热。
(3)电缆线芯与线芯及线芯与屏蔽间通过交流2500V/5min电压试验。
(4)电缆线组的工作电容在测试频率为1kHz时不大于100pF/m。
(5)电缆线组的电容不平衡在测试频率为lkHz电缆长度为250Im时不大于250pF。
(为什么要用M来表示D呢，因为我只转换12位，D是16位的)D换成M(12位数据的传输)M怎么能存储数据呢，M是个位软元件，只有断开(0)和闭合,而PLC数据都是二进制处理的，比如字软元件D是16位的，就能通过M来表示，一个D需要16个M来储存。
b：这条指令时将数据D100的低8位传送到BFM的#16编号进行输出。
c：将D100的低8位写到#16后，还要写高4位，为了不覆盖，得先把低8位保持，c的指令就是保持功能，H0004是16进制的数字4.转换成二进制就是100，对应b2b1b0;c的第一条指令就是将b2置1，第二条将b2置0,这样就完成#17的低8位保持功能了。
型号产品名称电压V芯数截面mm2主要适用范围KVV阻铜芯聚氯乙烯绝缘聚氯乙烯护套kvv电缆450/.75-10敷设在室内，电缆沟、管道等固定场合KVV22铜芯聚氯乙烯绝缘聚氯乙烯护套钢带铠装kvv22电缆450/.75-10敷设在室内，电缆沟、管道直埋等能承受较大机械。
生产厂商:天津市电缆总厂第一分厂物理参数:1.线芯材质:纯铜2.标称对数:5-2400对3.导体直径：铜线直径为、0.40、0.50、0.60、0.70、0.80、0.90mm；4.绝缘材料：高密度聚乙烯；5.绝缘单线：在导线上连续挤制绝缘材料，采用规定的10种标准色谱以便识别，并保证电缆的电气。
2、产品标准：Q/TYL411-91《聚氯乙烯绝缘和护套信号电缆》3、产品使用特性：电缆导电线芯的长期允许工作温度应不超过+65℃。
敷设时电缆的温度应不低于-5℃，弯曲半径应不小于电缆外径的10倍。
4、电缆型号和名称型号名称使用范围PVV22聚氯乙烯绝缘聚氯乙烯护套内钢带铠装信号电缆敷设在室内、电缆沟中，管道内及地下。
敷设方式：架空/ 管道 /直埋ZRC-HYAT 10x2x0.4 WDZ-HYAT 10x2x0.4ZR-HYAT 10x2x0.4MHYAT10x2x0.4ZRC-HYAT 20x2x0.4 WDZ-HYAT 20x2x0.4ZR-HYAT 20x2x0.4MHYAT20x2x0.4ZRC-HYA。
correction
Purpose of HYAT solid insulated filled cable: solid insulated filled cable is suitable for the urban telecommunication line of the local telecommunication network in the town of wuyu, and also for the special network line connecting to the public network. Mainly used for pipeline laying. The inner and outer surfaces of the cable core and the shield layer are filled with oil paste and poured to prevent water intrusion. The mechanical and electrical properties of the cable remain unchanged under conditions of 30~C - 60~C. Structure: wire: annealed bare copper wire, copper wire diameter 0. 32, 0. 40, 0. 50, 0. 60, 0. 70, 0. 80, 0. 90 (mm). Insulating material: high density polypropylene or polypropylene, colour of the insulated wire as indicated by full chromatograph. Pair of insulated wires: twist two different colored insulated wires into pairs at different pitch and use the specified chromatographic combination to identify pairs. Core structure: with 25 pairs as the basic unit, more than 25 pairs of cables are assembled according to the unit, each unit is wired with the unit of specified chromatogram to identify different units. 100 pairs of cables with more than one pair of cables plus 1% of the reserve pair, but not more than 6 pairs. The gap in the core is filled with oil paste. Core tape: wrap with a polygrease film tape. Shielding: metal strip with or without striping, which is longitudinal wrapped outside the core of the cable. Sheath: black low density polymer. Double sheathed cables can also be provided. Identification and marking: cable outer surface sexual identification mark, mark at no more than alternate 1 m intervals, tag contents are: the diameter of wire, line number, cable type, factory name and year of manufacture, marking at no more than alternate 1 m intervals to mark on the surface, but with the tag stagger. Other structures: according to the needs of users, we can provide armored cables HYAT53, HYAT55 and high frequency isolation cables YATG with strengthened mechanical protection layer.
8h工作制是接触器的基本工作制，约定发热电流参数就是按8h工作制确定的；不间断工作制较8h工作制严酷得多，接触器的触头容易出现氧化而线圈容易出现过热。
在不间断工作制下，接触器需要降容使用；断续周期工作制的负载率则分别为标准值的15%、25%、40%和60%；短时工作制下触头的通电时间标准值分别为10min、30min、60min和90min等四种。
使用类别接触器有四种标准使用类别，分别是AC-AC-AC-3和AC-4。
控制电缆包括kvv电缆，kvvr电缆，zrkvv电缆，zrkvvp电缆，kvvp电缆，kvvrp电缆，kvvp2电缆，kvvp2－22电缆，nhkvv电缆，zrkvvrp电缆，kvv22电缆，zrkvv22电缆。
2, product characteristics: cable ac rated voltage up to 500 v, the long-term working temperature of cable core shall not exceed 70 ℃. Cable allows bending clearance diameter should not less than 6 times of cable diameter, temperature under installation should not below 0 ℃.
型号产品名称敷设场合及要求芯数标称截面mm2导体长期允许工作温度℃245IEC81(YH)高强度橡套电焊机电缆用作电焊机二次侧接线及连接电焊钳的软电缆116～9565YH天然胶护套电焊机电缆用作电焊机二次侧接线及连接电焊钳的软电缆110，120～18565245IEC8。
Fire - resistant cable refers to the cable which can keep safe operation for a certain period of time under the condition of flame burning. China's national standard GB12666.6 IEC331 (e) will fire test points A, B two levels, A grade flame temperature of 950 ~ 1000 ℃, the duration for fire, 90 min, class B flame temperature of 750 ~ 800 ℃, for fire duration 90 min, during the whole test, the sample should be under the rated voltage value of the product. Fire-resistant cable is widely used in high-rise buildings, subway, underground street, large power stations and the important industrial and mining enterprises and other related to fire security and its lifesaving, for example, fire fighting e and emergency light guide emergency facilities such as power supply circuit and control circuit.