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来自:平邑县金鑫成品收受接管中间 宣布日期:2021/5/10
焦点提醒:在选用电线电缆时,普通要注重电线电缆型号、规格(导体截面)的挑选。
在选用电线电缆时,普通要注重电线电缆型号、规格(导体截面)的挑选。 When choosing wire and cable, we should pay attention to the choice of wire and cable type and specification (conductor cross section). ⒈电线电缆型号的挑选 Selection of wire and cable model 选用电线电缆时,要斟酌用处,敷设前提及宁静性;比方: When selecting wires and cables, the use, laying conditions and safety should be considered; for example: 按照用处的差别,可选用电力电缆、排挤绝缘电缆、节制电缆等; According to the different uses, power cables, overhead insulated cables and control cables can be used. 按照敷设前提的差别,可选用普通塑料绝缘电缆、钢带铠装电缆、钢丝铠装电缆、防腐电缆等; According to the different laying conditions, general plastic insulated cables, steel tape armored cables, steel wire armored cables and anticorrosive cables can be selected. 按照宁静性请求,可选用阻燃电缆、无卤阻燃电缆、耐火电缆等。 According to the safety requirements, flame retardant cable, halogen free flame retardant cable and fire resistant cable can be selected. ⒉电线电缆规格的挑选 Selection of wire and cable specifications 肯定电线电缆的利用规格(导体截面)时,普通应斟酌发烧,电压丧失,经济电流密度,机器强度等挑选前提。 When determining the specifications of conductor and cable (conductor cross section), we should generally consider heating, voltage loss, economic current density and mechanical strength. 按照经历,高压能源线因其负荷电流较大,故普通先按发烧前提挑选截面,而后验算其电压丧失和机器强度;高压照明线因其对电压程度请求较高,可先按许可电压丧失前提挑选截面,再验算发烧前提和机器强度;对高压线路,则先按经济电流密度挑选截面,而后验算其发烧前提和许可电压丧失;而高压排挤线路,还应验算其机器强度。若用户不经历,则应咨询有关专业单元某人士的定见。 According to the experience, the low voltage power line, because of its high load current, usually selects the cross section according to the heating condition, and then checks the voltage loss and mechanical strength. The low voltage lighting line can select the cross section according to the condition of the voltage loss, and then check the heat condition and the mechanical strength. First, choose the cross section according to the economic current density, then check the heating condition and allowable voltage loss, and the high voltage overhead line also calculates its mechanical strength. If the user has no experience, he should consult the relevant professional units or people. 电线电缆的运输和保存 Transport and storage of wire and cable 1、运输中严禁从高处扔下电缆或装有电缆的电缆盘,出格是在较高温度时(普通为5℃摆布及以下),扔、摔电缆将有能够致使绝缘、护套开裂。 1, in transportation, it is strictly forbidden to throw cables or cable plates from high places, especially at lower temperatures (usually about 5 degrees centigrade or so). Throwing and throwing cables may cause insulation and sheath cracking. 2、尽能够避免在露天以袒露体例寄存电缆,电缆盘不许可平放。 2, try to avoid storing cables in the open air as far as possible, and the cable disks are not allowed to be placed horizontally. 3、吊装包装件时,严禁几盘同时吊装。在车辆、船舶等运输东西上,电缆盘要用适合方式加以牢固,避免相互碰撞或翻倒,以避免机器毁伤电缆。 3, when lifting packages, it is strictly prohibited to lift several dishes simultaneously. In vehicles, ships and other means of transport, cable plates should be fixed in suitable ways to prevent collision or overturn, so as to prevent mechanical damage to cables. 4、电缆严禁与酸、碱及矿物油类打仗,要与这些有侵蚀性的物资断绝寄存.储存电缆的库房内不得有粉碎绝缘及侵蚀金属的无害气体存在。 4, the cable is strictly forbidden to contact with acid, alkali and mineral oil, and should be kept in isolation with these corrosive substances. There shall be no harmful gas that destroys the insulation and corrodes the metal in the storeroom of the storage cable. 5、电缆在保存时代,应按期转动(夏日3个月一次,其余季候可酌情延期)。转动时,将向下寄存盘边滚翻朝上,以避免底面受潮腐臭。寄存时要常常注重电缆封头是不是无缺无损。 5. During the period of storage, the cable should be rolled regularly (once a month in the summer and postponed in other seasons in time). 3. When rolling, store the side of the plate downward and turn it upwards, so as to prevent the bottom from getting damp and rotting. When storing, always pay attention to whether the cable head is intact. 6、电缆储存刻日以产物出厂期为限,普通不宜跨越一年半,最长不跨越二年。 6, the duration of cable storage is limited to the product's factory life. Generally, it should not exceed one and a half years, and the longest period will not exceed two years.

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