10 things to know about arc flash safety to help protect your people and operation, including why arc flashes occur—and nine other things you need to know about the risk of arc flash.

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Things about arc flash
safety to consider for
mining applications10
Learn more at Eaton.com/arcflash

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Why arc flashes occur
An arc flash is the explosive energy released when an
electrical fault, for instance a short circuit, causes an arc.
Arc flash event dangers include heat, flying
debris, sound, UV radiation and more.
10 Things to consider about arc flash safety for mining applications
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Learn more at Eaton.com/arcflash

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An explosion 4x hotter than the sun
The mere drop of a tool or accidental contact with electrical
systems can set off an arc flash and instantly generate an
energy explosion releasing temperatures in excess
of 36,000˚F. That’s four times hotter than the sun.
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10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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As powerful as an 8-stick dynamite blast
A 10,000A arc on a 480-volt circuit can have the
explosive force of 8 sticks of dynamite. Copper
expands 67,000 times its volume during an arc flash event.3
10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Power intensive environments are especially
vulnerable
In heavy power, continuous operation industries, arc flash poses
a very real threat. Environments operating with 125 kVA or
larger transformers call for special safety measures.
Protecting personnel and equipment is everyone’s
responsibility.
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10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Employees require education
Electrical workers should know how to understand
arc flash labels and must wear the proper
personal protective equipment (PPE).5
10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Arc flash labels provide advance warning
Two key pieces of information on the labels indicate:
• Expected incident energy which drives the proper PPE
required for protection.
• Distance a worker without PPE must work to avoid non-
curable burn.
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10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Avoiding electrical disaster
Reducing the time that an event persists by tripping a breaker or
clearing a fuse significantly reduces the arc flash incident energy.
Time and distance are the most controllable
variables reducing the risk of arc flash issues.
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10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Better equipment can help
Installing the right equipment can help mitigate arc flash hazards.
Specially designed low voltage motor control center (MCCs),
switchgear and Arktite pin and sleeve devices can reduce the
probability of electrical shock and arc flash energy during
maintenance.
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10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Human error is often to blame
The most common cause of arc flash incidents is human error.
A majority of mistakes occur during routine maintenance of
power system equipment or troubleshooting controls.9
10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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Good safety optimizes operational efficiency
A sound policy incorporating arc flash safety solutions
will protect your people and equipment,
minimize risk and increase uptime.10
10 Things to consider about arc flash safety for mining applications
Learn more at Eaton.com/arcflash

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