Figure 17: Different Features of Offshore Cables
Many features constitute a high-quality offshore cable that fulfills international standards. Here are some important features that make a cable durable and reliable.
IEC 60332-1 & IEC 60332-3-22 is an EIC standard to check the cable for its flame-retardant characteristic that is used for power cables and several other cables. These tests are taken under very high-temperature.
It is very important for the cable to pass this test to ensure safety on ship vessels and protect them from being at risk. In case of fire exposure, the cable burns at a very slow speed that makes it flame retardant. They are made up of materials that make them retardant to flames, and they are also self-extinguishing.
By zero halogen, we mean that the cable is free of halogen, and it does not have chlorine, fluorine, bromine, iodine, and astatine. These chemicals are highly reactive, so halogen-free cables are more protective and durable.
Another important feature that offshore cables need to have to ensure the safety of life on ships is low smoke emission. The purpose is that in case of fire, the cables should not create smoke. After the test for smoke density, the cable fulfills the IEC 61034-1, 2 standards.
Another IEC standard is IEC 60331. It’s a test that will check the resistance offered by an offshore cable in case of a fire situation. This test checks that the cables remain intact under very high temperatures. These are difficult to burn and do not melt easily. Moreover, they prevent the spread of fire.
To overcome any negative effects that can occur due to corrosion, the offshore cables must be mud-resistant. Saltwater, oil, and acid make the mud destructive for offshore cables. Therefore, a special coating of chemicals is added to protect the cables from corrosion.