In order to investigate the length of seawater entering the submarine oil filled cable after it is damaged.The length of seawater entering the cable at different depths and locations at the same depth was modeled and simulated based on the 500 kV submarine oil filled cable of the Hainan Interconnection System.The results show that when the orifice is close to the Guangdong side,the overall water inlet length on both sides of the orifice first increases and then decreases,with a maximum increase of 6.32%on the left side of the orifice and a maximum increase of 83.37%on the right side of the orifice.When the orifice approaches the Hainan side,the length of seawater entering both sides of the orifice increases as the depth of the orifice increases.At the same depth,the closer the orifice is to the middle of the cable,the shorter the water inlet length on both sides of the orifice.At 20 m and 60 m,the water inlet length on both sides of the orifice decreases by 2.28%～4.56%.At 70 m and 80 m,the water inlet length on the left side of the orifice decreases by 4.97%on average,while the water inlet length on the right side decreases by 21.03%on average.
万方数据