1. 产品标准：

本产品按国家标准 GB/T19666，GB/T12706 或国际电工委员会标准 IEC60502 制造。

This product is in compliance with the GB/T 19666, GB/T12706 or IEC60502 standard.

2. 使用范围：

该产品广泛应用与核电站，地铁车站，电话交换机及计算机控制中心，高层建筑大楼，医院，

宾馆，大型图书馆，地铁，地下商场，广播电视台，军事基地，石油平台以及人员比较集中，

空气密度较低时的场所。

The product is widely used in nuclear power plants, subway stations,telephone exchanges and

computer control centers, high-rise buildings, hospitals, hotels, large libraries, subways,

underground shopping malls, radio stations, important civil facilities and oil platforms, etc., as

well as more crowded places with low air density.

3. 阻燃，耐火电线电缆的特性和选用

Characteristics and selection of flame-retardant fire-resistant wire and cable

1, 阻燃电缆：flame-retardant wire and cable

阻燃电缆是指：在规定试验条件下，试样被燃烧，在撤去试验火源后，火焰的蔓延仅在限定

的范围内，残焰或残灼在限定时间内能自行熄灭的电线电缆。他的根本特质是：在火灾的情

况下有可能被烧坏而不能运行，但可以阻止火势的蔓延。

Flame-retardant wires and cables means that under the specified test conditions, the sample us

burned, after the test fire source is moved, the flame is spread only within the limited range, and

the residual flame or wire self-extinguishes within a limited time. Its fundamental characteristic is

that it may be burnt out in the event of a fire and cannot operate, but it can prevent the spread

of fire.

阻燃电缆的分类

其中含卤阻燃电线电缆的绝缘层，护套，外护层，和辅助材料（包带及填充）全部或部分采

用含卤的聚乙烯（PVC）阻燃材料，因而具有良好的阻燃特性。

The insulating layer, the sheath, the outer sheath and auxiliary material (wrapping tape and

filling ) of the halogen-containing flame-retardant wire and cable wholly or partially made of

halogen-containing PVC flame-retardant material, thus having good flame-retardant properties.

而无卤低烟阻燃电线电缆的绝缘层，护套，外护层以及辅助材料（包带及填充）全部或部分

采用不含卤的交联聚乙烯（XLPE）阻燃材料，不仅具有良好的阻燃特性，而且在电线电缆燃

烧时没有卤酸气体放出，电线电缆。和含卤阻燃电缆相比， 无卤低烟阻燃电缆有低腐蚀，

低烟的优点，但电性能及机械性能明显降低，所以在进行电缆敷设时，无卤低烟阻燃电线电

缆应较含卤阻燃电线电缆有更大的弯曲半径。

The halogen-free cross-linked polyethylene (XLPE) flame-retardant material is used in all or part

of the insulation layer, sheath, outer sheath and auxiliary rib material (wrapping tape and filling)

of halogen-free low-smoke XLPE flame-retardant wire and cable, so such wire and cable not only

have better flame-retardant properties, but also no halogen acid gas is emitted when the wire

and cable are burning, with small amount of smoke. Compared with halogen-containing

flame-retardant wire, halogen-free low smoke flame-retardant wire and cable have the

advantage of low corrosion and low smoke, but the electrical and mechanical properties are

reduced, so when the wire and cable are laid, halogen-free low-smoke flame-retardant wire and

cable should have a larger bending radius than halogen-containing flame-retardant wire and

cable.

2, 耐火电线电缆： fire-resistant wire and cable series

耐火电缆是指：在规定实验条件下，试样在火焰中被燃烧，在一定时间内仍保持正常运行的

性能。

Fire-resistant wire and cable mean that: under the specified test conditions, the sample still can

maintain normal operation for a certain period of time when burning .

耐火电缆的结构与普通电缆基本相同，不同之处在于耐火电缆在导体和绝缘之间增加耐火层，

耐火层由多层云母带绕包而成。

The structure of the fire-resistant wire and cable is basically the same as that of the ordinary wire

and cable. The differences is that a refractory layer is added between the conductor and the

insulating layer, the refractory layer is wrapped by a multi-layer mic tape.
耐火电缆的分类：

A 类耐火电线电缆能够在 950℃-1000℃的火焰中和额定电压下耐受燃烧至少 90 分钟，而电

线电缆不被击穿。

Class A fire-resistant wire and cable can withstand combustion for at least 90 minutes in

950℃-1000℃ flame and under the rated voltage, without breakdown in wire and cable.

B 类耐火电线电缆能够在 750℃-800℃的火焰中和额定电压下耐受燃烧至少 90 分钟，而电线

电缆不被击穿。

Class B fire-resistant wire and cable can withstand combustion for at least 90 minutes in

750℃-800℃ flame and under the rated voltage, without breakdown in wire and cable.

以上表格中所包含的无卤低烟低毒环保型电缆都具有阻燃，低烟， 无卤，低毒，不含铅，

镉等有害重金属及无磷等特点，在火灾时对环境造成的危害小，符合人对生态及保护环境的

要求，是绿色环保型产品。

The halogen-free, low-smoke, environment-friendly wire and cable included in the above table

have no cadmium and other harmful heavy metals and phosphorus, and have little harm to the

environment during a fire. Therefore, it is an environmental product that can meet people’s

requirement for ecological and environmental protection.