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How to choose a ship with isolated mineral insulated cat7 cable
2014-04-29 by bridge
Performance requirements for ship isolated mineral insulated cables required standard yet clear, so you can choose to ship with a power cable ships with the requirements as isolated mineral insulated cables Selection Guide.
a) choice of halogen, low smoke, low toxicity, flame ship bunched cables, according to the requirements used by the cable uses, applications and operating conditions selected;
b) are not allowed below the rated voltage cables cat7 cable using the nominal voltage of the circuit, the cable than the long-term allowable working temperature of at least the maximum ambient temperature of cable laying places high 10 ℃;
c) on the same ship should try to use the same cable temperature levels, temperature levels differ by more than 5 ℃ splitting cables should be laid, if there are difficulties laying beam, then all bunched cables rated current shall be in accordance with the the lowest temperature rating cable ampacity consideration;
d) through the cable fire zones and important equipment in the need to maintain the state of the work of fire and accidents power cable systems should be fire-resistant cables cable;
e) When cat7 cable with a mechanical protection or shielding requirements laid path, the cable should be designed with a metal braid armored cable. If the cable is laid in the open-air deck or engine room and other damp areas should have anti-corrosive outer sheath;
f) communication networks and DC networks should try to select multi-core cables, single core cables to avoid selected, and when selecting multi-core cables, to consider alternate wire.
In addition, ships with isolated mine to adapt to environmental performance cat7 cable insulation must be installed and used in their environmental conditions, such as impact resistance, mildew resistance, oil resistance, vibration, etc., and in exceptional cases, but also in line with the anti- nuclear radiation, anti-explosive gas, anti-electromagnetic, sunlight and other special anti-environmental performance requirements.
a) choice of halogen, low smoke, low toxicity, flame ship bunched cables, according to the requirements used by the cable uses, applications and operating conditions selected;
b) are not allowed below the rated voltage cables cat7 cable using the nominal voltage of the circuit, the cable than the long-term allowable working temperature of at least the maximum ambient temperature of cable laying places high 10 ℃;
c) on the same ship should try to use the same cable temperature levels, temperature levels differ by more than 5 ℃ splitting cables should be laid, if there are difficulties laying beam, then all bunched cables rated current shall be in accordance with the the lowest temperature rating cable ampacity consideration;
d) through the cable fire zones and important equipment in the need to maintain the state of the work of fire and accidents power cable systems should be fire-resistant cables cable;
e) When cat7 cable with a mechanical protection or shielding requirements laid path, the cable should be designed with a metal braid armored cable. If the cable is laid in the open-air deck or engine room and other damp areas should have anti-corrosive outer sheath;
f) communication networks and DC networks should try to select multi-core cables, single core cables to avoid selected, and when selecting multi-core cables, to consider alternate wire.
In addition, ships with isolated mine to adapt to environmental performance cat7 cable insulation must be installed and used in their environmental conditions, such as impact resistance, mildew resistance, oil resistance, vibration, etc., and in exceptional cases, but also in line with the anti- nuclear radiation, anti-explosive gas, anti-electromagnetic, sunlight and other special anti-environmental performance requirements.
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