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How to select the ship with isolation type mineral insulated cable

Information Source:Henan Huadong Cable Co., Ltd  Release date:2014-01-21

  Currently ships with cable requirement that meet resistance to combustion performance through IEC60332-3 class A of bundles in flame retardant experiment, and the performance of the ship with isolation type mineral insulated cable demands has yet to have A clear standard, so can ship with the choice of power cable requirements as ship with isolation type selection of mineral insulated cable guide.

A) choose halogen free, low smoke, low toxicity, into a bunch of flame retardant ships with cable, according to the requirements of use, according to the purpose of the cable selection, applications, and working conditions;

B) the rated voltage of the cable is not allowed to lower than using the cable circuit of the nominal voltage, cable allowed working temperature for a long time at least is higher than the highest temperature of cable laying places 10 ℃;

C) on the same ship should choose as far as possible the same heat resistance level of cable, the heat resistance levels vary more than 5 ℃ of cable, the duty to beam if beam installation is difficult, the bundle of all the rated current of the cable should be in accordance with the minimum heat resistance level cable current carrying capacity consideration;

D) the cable and refractory area is under fire condition still has to maintain work the important equipment of cable and cable of the power system accident type refractory cables should be adopted;

E) cables in the installation path have mechanical protection or shielding requirements, cable should be designed into armoured cable with metal braiding. If the cable laying in outdoor deck or engine room, such as moisture, should have anticorrosive outer sheath;

F) in the communication network and dc network should choose multi-core cable as far as possible, avoid to choose single core cable, and when selecting multi-core cable, want to consider the spare conductor.

  In addition, ships used isolation type cable for mine environmental performance must be suitable to the environmental conditions and its installation and use, such as impact resistance, resistance to mildew, oil resistant, resistant to vibration, etc., at the same time, under special circumstances, but also conforms to prevent radiation, prevent explosive gas, electromagnetic, sunlight and other special environmental performance requirements.

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