What is a wandering current?

Stray Coufter is a flow of electricity through equipment, buildings or ground due to imbalances in electrical power systems or due to damage. Electrical systems are grounded on Earth at regular intervals, both on neutral and ground phases or wires. The power supply is supplied in hot stages with different voltages depending on the location. The unused electric current returns to the supplier via neutral wires or phases and electric codes in many areas require a separate grounding conductor that is connected to the rod located on the ground. Strah stream may be harassment if small amounts are present, but can be electric current and kill if it reaches dangerous levels. Along with the potential risk of electric current, small stray currents can also cause damage to metals in the ground.

Direct cystems URrent (DC) are used for railway, metro and some energy distribution systems. The desired currents may exist where the railway sysThemes contact Earth, especially in humid areas. The presence of a stray stream can cause accelerated metal metal corrosion, because the electric flow causes the metal to disintegrate into its ions and enters the ground. Leave unread, metal pipes and structures can be destroyed in the short period.

Stray Curred Corosion is a widespread problem in marine systems, especially in ports or ports where a large number of vessels are anchored. The boat has a bad electrical connection can drain a direct current from its batteries directly into the water. Other ships connected to the Electric Marina electrical system share common cabling and stray current can enter other ships under water fittings or propeller shafts. With an electric flow now determined by the defecusystem of TIVE ships, accelerated corrosion can occur and destroy metal fittings relatively quickly.

In the 20th century it was common for the houses to groundY Their electrical systems to enter the households copper from drinking water. Defects in the cabling created electric flows with copper pipe systems and caused extensive corrosion of public water systems. Understanding these problems led to better grounding systems using metal ground bars driven deep in the ground to provide a way for the current flow.

Underground pipes used for oil, gas or water supplies can be damaged by stray currents. Many piping systems use insulators, non -conductive connectors or seals that separate the pipes into smaller parts to prevent the current to prevent longer distances. The coating outside with plastic or polymer coatings can reduce corrosion by separating the pipeline from nearby soil. The sacrificial anodes that are rods made of zinc or other metals that corrode more easily than the pipes can be connected at regular intervals to protect the pipeline from electric corrosion. These anodes are also used on ships for paralyzAny components of underwater ships.