The Carbon Hit Anchor (central anchor) is generally set in the middle of an anchor segment, with various structures. The principle is to fix the position of the catenary where the Hit Anchor is located (by forming a hard anchor between the load-bearing index thread and the pillar or tunnel wall anchor).
Then connect the contact wire and catenary cable, the effect is to prevent the contact wire and catenary cable from sliding to one end, and when the catenary breaks, the accident can be shortened to half the anchor section, and there are other effects that cannot be imagined for a while.
A hit anchor refers to a situation where a ship or boat stops moving forward due to its anchor getting stuck in the seafloor or riverbed. This often happens when the vessel tries to move in an area with an unexpectedly shallow depth, or when the anchor becomes entangled in underwater obstacles such as rocks, wrecks, or debris. In such cases, the crew must release the anchor by reversing the ship's engines, or by manually breaking the anchor free using winches or other mechanical means. In some cases, a diver may be sent into the water to assess the situation and resolve the problem. To prevent hit anchor incidents, mariners should take care to verify the depth of the water before anchoring and to monitor the vessel's position regularly while at anchor.