Marine facilities such as platforms for power supply and communication between each other and land facilities must use sub-marine fiber optic and power cable. Asia Akam Industry Co., the first Iranian company in the field of cable installation has designed and manufactured the required equipment. One of these production is designed and built the most important equipment of this operation. FOC/Power Cable Tensioners. This system is produced by Iranian experts and ability to control different sizes of marine fiber optic and power cables.