What are the the characteristics of the marine lighting system?
The ship's normal lighting system, is distributed throughout the life and work spaces inside and outside the ship, providing sufficient illumination for each cabin and workplace. the lighting voltage is generally 110 V or 220 of AC and DC. V; different cabins and spaces have different illumination requirements; all lighting fixtures are equipped with control switches.
Normal lighting is the main lighting of the ship. Normal lighting includes:
(1) main lighting of the cabin, such as most of the ceiling lights;
(2) Partial or auxiliary lighting, such as bed lights, wall lamps, washing lamps, etc .;
(3) loading and unloading glare lighting;
(4) More than half of the indoor and outdoor walkways;
(5) Sockets and the like that must be provided for each compartment.
Non-critical equipment such as electric fans, refrigerators, and cabin electric heaters with a rating equal to or less than 0.25 kW may also be included in the normal lighting system.
2. Emergency lighting system (large emergency lighting)
Emergency lighting is powered by the emergency switchboard through the emergency lighting distribution box. The voltage can be the same as normal lighting, and low voltage power can also be used.
The Ship'S Emergency Lighting System Is Mainly Distributed In Important Spaces In The Engine Room, Crew And Passenger Compartments, Boat Deck Lights And Personnel Passages. It Is Used For Emergency Lighting When The Main Switchboard Is De-Energized And The Main Lighting System Is Faulty. For cargo ships, the emergency power supply should be greater than 36 h; for emergency power supply should be greater than 36 h; greater than 18 h.
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