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Causes of Arc Flash can be a failure in the operation of the protective devices, Working on an energised line, accumulation of severe dust and dirt creating a conductive path, an undesired path for the fault current, unprofessional handling of the equipment, faulty switching practices, operating tools handling by the operating personnel. The arc if quenched in a prescribed time is not hazardous. But when its not mitigated in the stipulated time it leads to many a hazards listed above. Untrained working personnel with little knowledge on the hazardous environment, or the potential of voltage and current levels that he is working, careless practices of required PPE , ignorance on part of the operating personnel as to the incident energy, safe operating distances, unable to identify Arc Flash Hazard working conditions. These are some of the main reasons in severe injuries and fatalities in Arc Flash Incident. In all such cases the level of hazard remains to be grave and leads to heavy fines on part of the management, hospital expenses, liability in insurance claims, property damage and capital costs. These account to be in millions of Dirhams. Hence the regulatory bodies like OSHA 29 CFR 1910, NFPA 70 E, IEEE 1584- 2018, IEC-60079-17 emphasise on an Arc Flash Study to be carried out periodically and to implement the Arc Flash Study Requirements invariably.
Some of the after effects of an Arc Flash are:
Arc Flash leading to temporary or permanent blindness
With the awareness being increased a lot of facilities are now conducting Arc Flash Study at their facility. Contact VB Engineering for various Arc Flash Study services. We offer our services to all types of facilities, of different sizes, AC ,DC establishments, High, Low or Medium Voltage levels. The methodology that we implement in Arc Flash Study is as detailed below:
A complete data of all the equipment established at the firm is collected at this point. The data about the motors, generators, switchgears, solenoids, transformers, protective relays, different types of loads, name plate details of equipment, power angle X/R ratio, circuit breakers, heating equipment like resistors, loads that may cause a spark are all collected. A team from our company personally visits your firm in acquisition of data with prior intimation. We at VB Engineering consider a personal walk through data collection superficial to the company's record of the equipment as it takes a technical expert in identifying the hazardous equipment.
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With the acquired data, our team of experts develop a single line diagram using SKM power tools, ETAP. Develop models with the implementation of novel softwares and technologies like NEPLAN, EDSA, Cymdist, Arc Pro. The SLD preparation takes into consideration all the equipment of about 30 KW and more, sources, Buses, Power generators, transmission and distribution networks, type of grounding implemented, capacitors, reactors, MCCs, control panels, switch boards, type pf protective devices, fuses, motors operating at voltage levels of 600V, 400V. It is widely seen that Arc Flash occurs at voltage levels of 400 V and other high voltages. Hence the data corresponding to operating voltages of less than 240 V is not taken into consideration except in cases where it poses a 120 KA, or other low impedance loads that may cause Arc Flash Hazard. The development of SLDs also prove to be advantageous in identifying unused or unnecessary establishments in the utility or the possibility of expansion for future use. At VB Engineering we provide you with panel wise drawings for easy assessment complying with the international standards and Arc Flash study requirements.The Arc Flash Calculation is the main aspect of Arc Flash Analysis. IEEE 1584-2018 has formulated specific models in calculation of bolted fault current, Incident energy, Arc current, normalised incident energy, RMS values of bolted fault currents, frequencies of operation, operating system voltage, distance of operation, gap between the conductors where the arc occurs, type of enclosures, types of electrodes deployed, types of phases and grounding as per the standards.
With all the calculations, SLDs, Arc Flash Hazard Analysis, Short Circuit coordination Study, a detailed report is formulated providing with the necessary guidelines, methods to mitigate the arc faults, installation of new devices, suggest the right PPE, Labelling at different installations emphasizing on the Arc Flash Hazard. With VB Engineering, the Arc Flash Study cost proves to be an invest on the long run for the reliable operation of the facility. A cost effective Arc Flash Study Report is our metier.
At VB Engineering we provide a necessary training to the working personnel. The Arc Flash Boundaries and the safe operating distances evaluation is primarily done to distinguish between the “qualified” and the “unqualified” as termed by IEEE standards. Arc Flash Study training includes the reading and understanding of the Arc Flash Hazard labels. In view of the workforce primarily involved in various industries and facilities in KSA, Riyadh, Dammam and the regions in the area, VB Engineering is the first ever Arc Flash company to release Arc Flash Hazard labels in the Arabic language besides English. This enhances in the understanding of the risk of the equipment that they are working on and to exercise the required PPE and follow the OSHA, IEEE standardised operating distances. The Arc Flash study training enables the working personnel to use the right eye ware, headphones when the Arc blast sound is over 85 DB as specified by the OSHA standards. Training the workforce may not prove to be an extra expense on part of the management but paves a way of mitigating the Arc Flash Hazards, the associated perils of injuries and fatalities to the operating personnel, the equipment protection and a preventive measure of dangerous accidents at the firms as most of the industries in KSA are operated at highly flammable environment.
As per international standards Arc Flash Study is to be carried out for every 2 to 3 years and with an increment or decrement of load by about 30 %. Safe guard you firm today. Contact our VBE consultant today for effective Arc Flash Study.
The Kingdom of Saudi Arabia with its wide range of industries,and its vast scope of development each year needs to meet up with the challenges yoked with this increase in the possibility of development. The construction industry, Oil and gas companies, ship and aircraft repair on commercial grounds, fertilizers, petroleum industries, electrical transmission and distribution in both residential and industrial sectors add a lot of other business opportunities witness an enormous growth rate in the past few years. There exists always a lot of work force in these establishments for the plain operation like monitoring, maintenance, identifying new branches of development, possible incorporation of new technologies. All these factors contribute to KSA being considered as the “energy super power”. Electrical energy is the main source of energy in keeping these facilities up and running, running at satisfactory levels. A great deal of challenges like losses, short circuits, failure of protective devices, Arc Flash Hazards are to be met with utmost care. Arc Flashes engrossing the main contributor of dangerous accidents, severe injuries and even fatal accidents is being addressed by the companies. The percentage of these injuries also has put the regulatory bodies like OSHA, NFPA, IEEE 1584 to set safety regulations that are to be met so as to ensure the safety of the most valuable asset of any industry- the working personnel. KSA is very keen in implementation of the safety standards and takes the necessary measures to put a check on noncomplying firms by levying heavy fines of thousands of Dirhams.
Our expertise team served the companies in Jeddah and Riyadh from Kingdom of Saudi Arabia for multiple projects over a decade.
Arc Flash Study companies offer their services in Arc Flash Study, Arc Flash Analysis and Arc Flash Hazard Analysis. VB Engineering, a pioneer in Electrical services with a wide range of clients across the globe provides you with the best solutions for Arc Flash Hazards with its expertise. VB Engineering has been into the Arc Flash Study and Arc Flash Hazard Analysis for a decade. And thus PROVIDE you with the right Arc Flash Analysis, Arc Flash Hazard Analysis, Arc Flash Calculations, Short circuit coordination Study, Arc Flash calculation training with an Arc Flash Study Cost in line with the facility's financial, developmental, physical constraints.
An Arc Flash or Flash over is an unwanted and unforeseen danger that has the possibility of occurrence at a wide range of facilities irrespective of its size. A 1-phase or a 3-phase fault occurring at any point of the facility may lead to an Arc Flash. The fault causes a fault current and an undesired discharge between two conductors. And when this discharge is supplied with a sufficient amount of energy it leads to an ionisation of the air around it further creating a plasma along with high amounts of heat energy, light and sound. The deafening sound of about 160 DB causes rupture in eardrums. The heat energy associated with an Arc Blast is of 35000 Fahrenheit. The Flash of light may cause blindness to the operating personal. The Arc Blast leads to the melting and explosion of the surrounding equipment releasing the molten metal and shrapnel with a tons of pressure. Arc Flash Hazards lead to death and severe burns to the operating personnel.