Introduction to Arc Flash Boundary
In this article we will briefly discuss the distance limit and the safe and unsafe area of an electrical equipment and equipment from the risk of electric arc flash. The distance limit or area is often referred to as arc flash boundary. There are several terms related to arc flash boundaries called approach boundary. Approach boundaries will also be discussed briefly in this article. In each boundary and area requirements will be discussed in the selection and determination of arc flash protection or personal protective equipment (PPE) that corresponds to protection from risks of arc flash. The discussion will again be based on the NFPA 70E and IEEE 1584 standards.
Arc flash protection boundary is the minimum distance where a person does not use a personal protection tool but can be safe and avoid the danger of arc flash. NFPA 70E defines an approach in setting special restrictions to protect workers when working near stressed equipment. This is often called approach boundary. There are 4 types of approach boundaries, namely:
- Flash Protection Boundary
- Limited Approach Boundary
- Restricted Approach Boundary
- Prohibited Approach Boundary
Arc Flash Boundaries
The arc flash boundaries are the minimum “safe” distance from conductors or open-energy circuit components that have the potential for arc flash. Take the right steps to ensure your safety before making any measurements, especially on energy equipment. Know where the bow’s arc is and remember these top security measures.
Approach Boundaries for AC (Alternating-Current) Systems
Approach Boundaries for DC (Direct-Current) Systems
Requirements for Personal Protective Equipment (PPE) from Danger of Arc Flash
Contact Omazaki Consultant if you are looking for an arc flash hazard and risk assessment consultant to determine the right arc flash protection. Especially for determining or selecting arc flash personal protective equipment (PPE) to work on your electrical system, both existing systems and systems that will be built and will be expanded throughout Indonesia.
- Arc Flash: Definition, Hazards and Risks
- Arc Flash Causes Analysis
- Arc Flash Calculation Methods
- Electric Shock Protection Study
- Power System Study and Analysis
- Short Circuit Study and Analysis
- IEEE 158 4IEEE Guide for Performing Arc-Flash Hazard Calculations4
- NFPA 70E Standard for Electrical Safety in the Workplace