阻燃耐火控制电缆0.75平方4芯

产品性能：
1.产品依据GB9330-1988 国家标准生产                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
2.电缆能经受交流50Hz、3000V、施压时间五分钟低高压试验
3.绝缘线芯浸水一小时后，经受高压试验不击穿。                                                                                                                          　　　　　　　　　　　                                                                                                                                                                     

使用特性：                                                                                                                                                                                           
1.本产品适用于交流额定电压Ｕ为450/750V 或 直流1000V及以下控制、监控回路及保护等场合                                                                                                                            

2.电缆导体允许工作温度70℃。                                                                                              
3.电缆工作电压不大于额定电压的1.1倍