Basic Inspection of Marine Searchlight Commissioning

  • Check brightness with an illuminance meter. Max light flux and effective range are crucial. High - speed vessel lights must reach at least 1 nautical mile (1,852 m). Their beam intensity should be 400,000 cd. Also, check different brightness levels like high, low, and SOS modes.

    Check the marine searchlight's beam - focusing ability. The light beam should focus into a sharp, bright spot and spread out to evenly illuminate a wide area. Also, verify the lighting angles and ranges, and check for any beam quality issues like color dispersion or distortion.

    Control Function

    Make sure the power switch is responsive and the power indicator functions properly. For rotation control, ensure smooth and precise horizontal and vertical rotation. The focusing control should adjust the light beam's focus accurately. If there's remote control functionality, verify signal transmission between the remote and searchlight.

    Stability

    Operate the searchlight near electronic devices and radio - communication equipment to check its anti - interference capability. Continuously work the searchlight to check its running - temperature stability. Also, perform a shake test to check its vibration stability during vessel navigation.

    Safety and Protection

    Check if the searchlight cuts off power or reduces brightness when overheated. Test if its power lines can handle short - circuit faults and protect the electrical system. Subject the searchlight to IP66/IP67 tests to check its waterproof performance. After testing, no water should be inside, and the electrical insulation resistance should be ≥2 MΩ. Conduct a salt - spray test for corrosion resistance.

    Environmental Adaptability

    Ensure the searchlight works properly in harsh conditions like high/low temperatures, humidity, and salt spray. Verify its waterproof performance. Check if the housing and electrical parts meet IP55 standards. The test should be conducted under a pressure of 0.25 kg/m².

    Additional Functions

    Check the searchlight's compatibility with the vessel's central control system. Ensure smooth signal transmission between them. Also, test the wireless remote - control distance and anti - interference ability. The emergency function should activate within 2 seconds of main - power failure. It should have a minimum working time of 2 hours.

    These checks are crucial for reliable searchlight operation. They help ensure safe navigation. When selecting a marine searchlight, focus on these key features for optimal performance and safety.