Selection Steps and Principles for the Selection of Marine Cable in Marine Electrical Wiring Systems

1. Select the appropriate cable model based on the cable's purpose, installation location, and working conditions.

2. Select the appropriate cable cross-section based on the operating schedule of the electrical equipment, type of power source, cable conductor, and load current.

3. Determine if the fragmentary cable's short-circuit capacity meets the requirements based on the system's short-circuit current calculation results.

4. Adjust the rated current of the cable based on the environmental temperature, and then determine if the allowable current of the cable is greater than the load current.

5. Adjust the rated current of the cable based on the bundled laying correction factor, and then determine if the allowable current of the cable is greater than the load current.

6. Verify line voltage drop and determine if it is less than the specified value.

7. Determine if the cable and protective device are coordinated based on the setting value of the protective device; if not, assess whether it's possible to adjust the appropriate protective device or setting value. Otherwise, select a suitable cable cross-section again.