ARC Flash vs ARC Blast

About ARC Flashes and ARC Blasts

ARC Flash and ARC Blast are two of the most common types of electrical accidents. ARC Flash is when there is an electric arc flash, which is a very bright light that is caused by a spark. ARC Blast is when the air around an object explodes because of the heat that is created by the electric arc.

ARC Flash is more dangerous because it can cause injuries to people, while ARC Blast is more likely to damage equipment.

Both types of accidents can be very dangerous, so it is important to know how to protect yourself from them.

What is an Electrical ARC Event?

An ARC event is when two objects make contact and create a spark. This can cause an electric arc flash, which is a very bright light, or an ARC blast, which is an explosion of air that is caused by the heat from the electric arc. ARC events can be very dangerous, so it is important to know how to protect yourself from them.

What is an ARC Flash?

ARC Flash is when a very bright light is created by an electrical arc. It can happen for two reasons:

1. The voltage of the circuit that has an ARC Flash goes higher than it should be. Because this happens, the electricity flows from one part to another through air instead of through wires. When there are more volts used in a pathway with electrical arcs, the ARC Flash will be brighter.

2. The current of a circuit with an ARC Flash is higher than it should be. This happens because there are too many electrons flowing at once through the wire or airway that they use to flow from one part of the electrical device to another. When this is happening in a circuit, more and more heat is created. If the heat gets too high, it can cause an ARC Blast.

What Causes an ARC Blast?

An ARC Blast happens when an ARC Flash gets so hot that it causes the air around an object to explode. It can be caused by the heat of a wire or metal piece and is most common in electrical wires.

ARC Blasts are more likely to happen with high voltage circuits because they have higher currents running through them than low voltage ones do. ARC Blasts can cause ARC Flash injuries but are more likely to damage equipment.

Difference between ARC Flash and ARC Blast

Arc flash and arc blast are two distinct phenomena that may be confused with one another. They're often referred to as the reason (arc flash) and consequence (arc blast). When a short circuit is created (or an arc flash occurs), it has the potential to generate arc blast, which is a type of highly dangerous electrical explosion.

Recovery from an ARC Incident

It's probable that the process of recovering from an arc blast or arc burst will be lengthy. It's not unusual for people who have been exposed to an arc blast to require months and in some cases years, of additional medical treatment (including skin-graft operations). Arc blast burn victims are likely to suffer significant work absences during the healing process.

ARC Prevention Safety Measures

ARC Flash and ARC Blast can cause severe health damages, so it is important to take safety measures. Some of them include:

  • Use better, safer design and engineering of power distribution architectures. You should also use Overcurrent Protection Devices (OCPDs) to stop fault currents.
  • Perform an arc flash hazard study in your facility, at least once every two years, or if any major electrical equipment is added or removed. A flash hazard study allows you to identify hazard areas in your power distribution system where an arc flash may occur. You can then take steps to mitigate the risk.
  • Wear the right Personal Protective Equipment when working on electrical equipment to protect you from potential dangers.
  • Carry out tests on your equipment to be sure they’re safe for use. Also, do maintenance routines on them and change them periodically.

Davis Infrastructure Ready to Support

If you require assistance with your energy audit or emergency preparedness plan, contact Davis Infrastructure. We specialize in ensuring power supply to vital enterprises in a variety of sectors.

At Davis Infrastructure, we work with quality manufacturers and products such as Starline Track Busway. Universal Electric Corporation (UEC), the manufacturer of Starline, is a global leader in power distribution equipment. For more than 25 years, Starline Track Busway has provided data centers with the most flexible, reliable, and customizable overhead power distribution systems on the market today.