Causes and Effects of Short Circuits

Written by Angela

Reach out to Dreiym Engineering for any Corrosion, Electrical or Forensic Questions.

March 23, 2020

Causes and Effects of Short Circuits

Caused by internal faults, short circuits are abnormal currents that flow into equipment. The currents that flow in a short circuit are considered destructive energy. This energy needs to be held in the equipment or there can be dire consequences. Property damage, overheating machines, fire, and even explosions can occur when short circuits aren’t contained properly. Learn more about the causes and effects of short circuits to better protect your facility from the potentially devastating effects.

Causes

There are a few events that can cause a short circuit to occur. Even with the proper protection in place, sometimes a short circuit can break through the safety fuses and circuit breakers and cause damage. Here are some common causes of short circuits.

Lack of safety measures

If fuses and circuit breakers are not up to par with what a facility’s equipment demands, then short circuits may occur. Safety measures should regularly be checked to evaluate ability to hold the currents that come from short circuits.

Using equipment outside its range

Using equipment within a facility outside its normal or expected function can cause short circuits to occur. Equipment should only be used within its own limitations.

Changes from the utility provider

Sometimes a short circuit can occur even when no changes are made within a facility. If a utility provider makes changes, it can affect the equipment used in the facility and even raise the risk of short circuits occurring.

Growing facility without changes in safety

As a facility expands, equipment and usage typically change. If the safety measures to protect against short circuits are not updated as the facility and usage grow, short circuit currents can break through the now-inadequate protection methods.

Effects

Some of the effects of short circuits are overheating, fire, and explosions. These all can lead to significant damage and even injury. One of the most dangerous outcomes from a short circuit is an arc flash. If a short circuit leads to an arc flash explosion, then extreme fire may be the result, which puts people in danger, both in the facility and the surrounding area, and threatens the building and the property within.

Preventing short circuits should be a top priority for facilities. Facilities can get a free arc flash quote to evaluate need for an arc flash assessment, which includes a walk-down of the site, software analysis, electrical coordination analysis, short circuit analysis, arc flash analysis report, and arc flash labels.

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