What should the diameter of the accessory cord be in relation to the rope it is applied to?

The diameter of the accessory cord should be sized appropriately to ensure compatibility with the primary rope used during rescue operations. An accessory cord that is in the range of 1/2 to 3/4 of the diameter of the primary rope ensures it retains sufficient strength while also allowing for effective handling and integration during rigging and operational tasks.

Using an accessory cord that is too small can compromise the strength and reliability of the system, particularly in high-load situations. On the other hand, a diameter that is too large may hinder ease of use and create issues with managing equipment. A 1/2 to 3/4 ratio offers a balance, maximizing the strength-to-weight ratio and ensuring the accessory cord melds well with the primary rope systems without increasing the complexity of the gear.