Gold Cable

Gold cables are Tier 2 cable type. They suffer higher distance-related energy losses than copper cables, but are able to carry Medium Voltage, up to 128 EU/s. Gold cables have 2 different levels of insulation, with the 2x insulation providing smaller losses per tile and less shock damage from high voltage. It's worth noting that even though gold cables have a higher energy loss per packet, this is countered by the fact that the maximum packet size for gold cables is 4 times that of copper cables. For example, if you send 128 EU through 4 tiles using copper cables, you will have 4 packets of 32 EU, and each of those will suffer a 1 EU loss, resulting in 124 EU reaching its destination. If gold cables are used, that 128 EU will be sent in a single packet, that will suffer a 2 EU loss, resulting in a final 126 EU. For this reason, it is recommended to use transformers to elevate the voltage when transferring power through long distances.

Video Tutorial
www.youtube.com/watch?v=o1ll6RUQ8yI