A single-line diagram (SLD) is a high-level schematic diagram showing how incoming power is distributed to the equipment. It is the blueprint for ...Read More
Conducting load flow studies is an important requirement for the operations. The load flow analysis is an important part of the power system ....Read More
Short circuit study is the process of analyzing an electrical system to determine the magnitude of fault currents that flows during ...Read More
Protective device coordination is the very important part of design for a electrical network as a part of Power system .....Read More
VB, is a leader and arc flash risk assessment partner for more than 500 global industries. Electrical arc flash is an electrical hazard present ...Read More
Harmonic analysis is the process of identifying the harmonic distortions that occur ...Read More
Arc Flash is a phenomenon that occurs when current flows in inadvertent path resulting in an Arc. The causes of this Arc are accumulation of dirt making it a conductive path, choice of operating tools by the operating personnel, faulty handling of the switchgear, or other switching activities. One elucidation to avoid the formation of the arc is to deenergise the line or Bus being operated that are accompanied by a downtime leading to a loss in hundreds of Taiwanese Dollars. Thus many firms are incredulous to deenergise the lines. This Arc if quenched swiftly proves to be posing no danger. But many a practical cases prove that when the Arc is energised sufficiently it results in a Flashover Or simply an Arc Flash with a high energy of both light and heat being released in all possible directions ionizing the air around it further energising the arc. The energy melts the metals around it sending a burst of molten metal at a pressure of about half a ton making the person in the proximity to be injured severely. The person may experience an Electric shock , burn injuries, blindness due to the bright light from the flashover or a severe damage to the eardrums due to the high sound of about 160 DB which is way too higher than the normal range a human can bear. At times an Arc Flash may lead to death or painful injuries needing a prolonged time to heal. It so happens that all these series of events occur in a fraction of a second, leaving no time for the operating personnel to escape for protection. Having the right PPE, knowledge of Arc Flash possibility through effective signs and labels have proven to be safeguarding the workers under such dangerous Arc Flash.
The management willing to safeguard their working environment not only benefits in providing safe conditions for their workers, but also are at the advantage of preventing a shutdown of the firm for repairs, delays in insurance claims, permanent damage to the equipment and other financial crisis that may cost them millions of dollars. The right choice of Arc Flash Study company among the various Arc Flash Study Companies plays a decisive role. Arc Flash Study and Arc Flash Hazard Analysis and Short circuit coordination study are our speciality at VB Engineering. With highly qualified and trained professionals that have a vast experience in performing Arc Flash Study for almost all voltage levels small, medium and large and a wide variety of plant sizes, implementing the latest technology and soft wares in Arc Flash Hazard Analysis and Arc Flash Calculations all pertaining to the global Electrical Safety Regulations proposed by OSHA, NFPA 70 E, IEEE 1584-2018 you can be assured of the Arc Flash Survey and the Arc Flash Study report thereby are a great measure in providing a safe working environment.
Our other engineering services may also help you
Arc Flash may occur at all operating voltages viz., 33 KV, 66KV, high voltages, 400 V,
480 V of Medium Voltages, and low operating voltages of 200V. Many Arc Flash Incidents are observed to
be occurring at 480 V i.e., the medium voltage levels.
An Arc Flash Study at your company requires to be conducted so as to mitigate the adverse effects of Arc Flash comply with the regulations set by international regulatory bodies like of OSHA,DGUV and NFPA 70 E and the local regulations proposed by Taiwan.
Hassell free insurance claims.
Avert the possibility of outage.
To have a record of the electrical equipment, loads, protective devices for future developments.
Arc Flash Survey, a walk through the entire facility to acquire the data. Rather than
follow the company's data from the previous records, we at VB Engineering, encourage an in-person walk
through from our expert which helps in attaining the accurate data that leads in identification of the
loads, switchgear, protective devices and Buses that are at the Arc Flash Risk .
Develop a Single Line Diagram depicting all the loads and their sizes, ratings like operating voltage, grounding types, buses, control panels, switch boards, Enclosure types of various switch gears, the backup devices, primary and secondary protective devices and their ratings. With the latest tools and softwares like ETAP, SKM a detailed single line diagram is developed. At VB Engineering the team of experts is quick in adapting to the new improvements in the tools and softwares used so as to give you a better and expedient diagram. The single line diagram also proves to be commandeering in identifying possible expansion of loads for future purpose or the unnecessary loads which can be replaced or shared by the loads already present there by reducing the electrical burden on the buses.
Perform Arc Flash Hazard Analysis. IEEE 1584-2018 has proposed ways of calculating and develop the
mathematical models from the data of the operating frequencies, voltage levels, circuit breakers types,
operating characteristics, enclosure type of electrodes, gap between the electrodes, AC or DC, type of
grounding used and calculate the incident energy of the arc, Arc current, bolted fault current, arcing
time , distance of operation for safe operating conditions, short circuit coordination study.
The short circuit coordination study determines the fault currents and arc currents providing solutions to mitigate the arc. These calculations are augmented considering the worst case scenarios, possible fault currents at different configurations and possibilities of faults.
Tabulation of the Arc Flash reports for easy understanding of the Arc Flash for all working personnel on the equipment.
Identify Arc Flash Risk loads, points of operation and labelling the Arc Flash Hazard with the details of Arcing voltage, Incident energy, Restricted, limited and safe approaching distances, proposing the required PPE. The Flash protection boundaries and PPE details are highly recommended by NFPA 70 E, IEEE 1 584, OSHA . The labelling suggested by VB Engineering is in reference to NFPA 70 E, ANSI Z535.4 Preparation of a detailed Arc Flash Study Report. At VB Engineering, the Arc Flash Study , Arc Flash Hazard Analysis, Arc Flash calculations, short circuit coordination study are performed with high precision with the implementation of the high end softwares like SKM, TANTRA, ETAP and their latest versions so as to ensure a purist Arc Flash Study Report. The Arc Flash Study Report is developed with the requirements and benefits of the company as requested by the management with utmost care in implementing the Electrical safety regulations and standards taking into consideration the size of the company and the economical factors of the management in providing a cost effective Arc Flash Survey.
Based on the Arc Flash Study Report, the company is advised to implement the suggestions proposed in the
Arc Flash, train the operating personnel in acquainting with the Arc Flash Hazard Labels, provide the
necessary PPE, be very attentive and vigilant while working on energised lines, periodic maintenance of
the circuit breakers, protective devices, Practice appropriate operating techniques, deenergise the
lines when ever possible. It is a abysmal practice in some businesses not to deenergise the lines even
when there is no chance of a downtime in the production. This practice is perilous in businesses with
highly flammable environment as in a chemical industry, oil and natural gas industries. Needless to say,
an Arc Flash incident in such environments is really fatal to the operating personnel and may lead to a
irrevocable damage to other equipment costing millions of dollars. We highly recommend that you perform
Arc Flash Study at your firm periodically, or there is an increase or decrease of about 30 % of the
loads at the firm. At VB Engineering, we dedicate a person or a team of experts solely for your company.
This ensures a scrupulous formulation of the report genuinely for the firm in providing the professional
training to the workers, understanding the Arc Flash Analysis and the signs, knowledge of the safe
operating distance, Arc Flash Boundaries effectively there by justifying the efforts put in by the
management for the wellbeing of the workers.
Is safeguarding your infrastructure, industry for Electrical safe working environment your concern? Contact our consultant at VB Engineering right away.