Here's an explanation of the given text in simpler terms:

An arc flash is a dangerous event where there is an uncontrolled electrical discharge between two conductors or parts that are supposed to be at different voltage levels but aren't due to some fault. This can cause serious injury and even death if proper safety measures aren't taken.

The key points from the text regarding Arc Flash Protection Boundary are:

1. To implement measures to reduce the risk of an arc flash as much as possible.

2. Determine what protective equipment is necessary for working inside this boundary.

In many countries, especially in areas like North America where I'm assuming most readers would be familiar with US regulations (since NFPA and OSHA standards mentioned are American), there are legal requirements to follow:

- The Occupational Safety and Health Act (OSHA) standard 1910.132 requires employers to provide personal protective equipment (PPE) for employees who may be exposed to arc flash hazards.

- Additionally, the National Fire Protection Association's (NFPA) standard 70E section 130.5 mandates that a Flash Hazard Analysis must be performed in certain situations.

The main goals of an Arc Flash Hazard Assessment are:

1. To determine where the arc flash boundary is located within a facility or area being assessed.

2. In most countries with significant electrical equipment (like power plants, data centers), it's mandatory to perform such assessments regularly as per local regulations and industry standards.

These assessments help identify potential risks associated with arc flashes so that appropriate measures can be taken to protect employees working near or inside areas where these hazards might occur.

What is arc flash protection boundary