Online Exporter Mechanical Protection of Connector and Cables in Marine Vessels Habor Shrinkable Parts
We thinks what clients think, the urgency of urgency to act inside the interests of a customer position of basic principle, allowing for much better high quality, reduce processing costs, charges are additional reasonable, won the new and previous customers the support and affirmation for Online Exporter Mechanical Protection of Connector and Cables in Marine Vessels Habor Shrinkable Parts, We are seeking for extensive cooperation with honest customers, achieving a new cause of glory with customers and strategic partners.
We thinks what clients think, the urgency of urgency to act inside the interests of a customer position of basic principle, allowing for much better high quality, reduce processing costs, charges are additional reasonable, won the new and previous customers the support and affirmation for China Heat Shrink and Cable Rain Shed, We sincerely hope to cooperate with customers all over the world, if you would like to have more information, please kindly contact us, we are looking forward to building up a great business relationship with you.
The ship shore power distribution box (hereinafter referred to as the shore power box) is a special ship power supply guarantee equipment installed in the port terminal. The device is suitable for a three-phase AC power distribution system with a working frequency of 50-60Hz and a rated working voltage of 220V/380V. It provides a fast and safe standard shore power interface for ships calling at the port, and realizes ship cable power supply, data collection, billing and settlement.
When ships are berthed or docked for repairs, they are generally connected to shore power. Especially for regular ships, docking at a certain wharf, the shore power connection device is installed on the wharf, so that the ship can use shore power as soon as the ship docks, and all the generator sets on the ship can be shut down. On the one hand, the generator set can be maintained or repaired normally.
Shore power operation：
(1) First, connect the power cable to the shore power terminal of the shore power box, close the shore power distribution switch, and the shore power indicator light on the shore power box is on.
(2) The phase sequence measuring device on the power box detects the phase sequence of the shore power, and the three-phase load of the phase sequence detector circuit is asymmetrical. When the phase connected to the capacitor is set to phase A, the brighter phase is phase B, and the darker phase is phase C. When the phase sequence of shore power and ship power is the same, close the switch in the shore power box If the phase sequence is inconsistent, the two of the shore power cables connected to the shore power terminal must be interchanged (these work is generally undertaken by the shore staff).
(3) Operation of shore power board In front of the main switchboard, when the shore power indicator on the board is on, it indicates that the shore power has been sent to the shore power switch of the main switchboard. At this time, the operation mode of the main generator and emergency generator should be set to the manual position. Disconnect the main switch of the generator and close the shore power switch immediately after the whole ship’s power grid loses power; if the shore power switch is on the emergency switchboard, the shore power switch should be closed before the emergency switchboard after the power grid is cut off. The ship’s power grid has been switched to shore power.
We thinks what clients think, the urgency of urgency to act inside the interests of a customer position of basic principle, allowing for much better high quality, reduce processing costs, charges are additional reasonable, won the new and previous customers the support and affirmation for Online Exporter Mechanical Protection of Connector and Cables in Marine Vessels Habor Shrinkable Parts, We are seeking for extensive cooperation with honest customers, achieving a new cause of glory with customers and strategic partners.
Online Exporter China Heat Shrink and Cable Rain Shed, We sincerely hope to cooperate with customers all over the world, if you would like to have more information, please kindly contact us, we are looking forward to building up a great business relationship with you.
| Degree of acidity of gases: | IEC 60754-1/2 |
| Halogen acid gas: | IEC 60754-1/2 |
| Smoke Emission: | IEC 61034-1/2 |
| Flame retardant: | IEC 60332-1-2 |
| UV resistance: | UL 1581 |
| Fire retardant: | IEC 60332-3-22 |
| Resistance of the conductor@20°C: | ≤93.8 Ω/km |
| Insulation resistance: | ≥5000 MΩ/km |
| Average characteristic impedance@100 MHz: | 100 ± 5Ω |
| Transfer impedance: | ＜100 mΩ/m @10 MHz |
| Delay skew (4~100 MHz): | ≤45 ns/100 m |
| Velocity factor: | 69% |
| Conductor resistance unbalance within pair: | ≤2.0% |
| Conductor resistance unbalance between pair: | ≤4.0% |
| capacitance unbalance to earth at 800 Hz or 1000 Hz: | ≤160 pF/100 m |
| Mutual capacitance: | ≤56 nF/km |
| Frequency (MHz): | 1 | 4 | 10 | 16 | 20 | 31.25 | 62.5 | 100 | 200 | 250 | 400 | 500 |
| Attenuation dB/100m (Max.) | - | 3.8 | 5.9 | 7.5 | 8.4 | 10.5 | 15 | 19.1 | 27.6 | 31.1 | 40.1 | 45.3 |
| NEXT dB (Min.) | 74.3 | 65.3 | 59.3 | 56.2 | 54.8 | 51.9 | 47.4 | 44.3 | 39.8 | 38.3 | 35.3 | 33.8 |
| PS-NEXT (Min.) | 72.3 | 63.3 | 57.3 | 54.2 | 52.8 | 49.9 | 45.4 | 42.3 | 37.8 | 36.3 | 33.3 | 31.8 |
| ELFEXT dB (Min.) | 67.8 | 55.8 | 47.8 | 43.7 | 41.8 | 37.9 | 31.9 | 27.8 | 21.8 | 19.8 | 15.8 | 13.8 |
| Return Loss dB (Min.) | 20 | 23 | 25 | 25 | 25 | 23.6 | 21.5 | 20.1 | 18 | 17.3 | 15.9 | 15.2 |
| PSELFEXT dB (Min.) | 64.8 | 52.8 | 44.8 | 40.7 | 38.8 | 34.9 | 28.9 | 24.8 | 18.8 | 16.8 | 12.8 | 10.8 |
