Discharge Of Static Electricity Research Articles

Enhancing Risk Management: Leveraging the Likelihood/Severity Matrix for Effective Risk Assessment and Mitigation in the Electrical and Electronic Sector

This paper presents the basic concept of risk and reviews commonly applied tools and techniques for risk assessment. Generally, risk assessment is a completely experiential decision-making process based on experience and knowledge of risk assistants. This paper emphasises one quantitative/qualitative technique, namely the likelihood/severity matrix approach, which aims to direct the organisation’s attention towards risks that have the highest potential to have a negative effect. This paper’s main contribution lies in introducing a proposed model that utilises the likelihood/severity matrix approach to categorise risks into ‘regions’ and subsequently rank them. This process supports risk managers in making informed decisions to reduce risks effectively. A likelihood/severity matrix was examined through a case study belonging to the electrical and electronic sector to find the critical risks that hinder the assembly line of personal computers. Results showed that the ‘Breaking parts during assembly’, ‘Shocking the components from static electricity discharge’ and ‘Using wrong compatible parts’ risks had the maximum risk score, with values of 10–15 as the most critical risks. These results can influence decision makers in developing actions to mitigate these highlighted risks.

An intrinsic antistatic polyethylene glycol‐based solid–solid phase change material for thermal energy storage and thermal management

AbstractPolyethylene glycol (PEG) is an important and popular phase change material (PCM), but is not a good antistatic material, which would cause the accumulation of static electricity and electrostatic discharge when used for the thermal energy storage and thermal management of electrical devices. Herein, we prepared a PEG‐based solid–solid PCM (SSPCM) with good antistatic property by introducing an ionic liquid onto the macromolecular chains. This SSPCM is in solid state even at 90°C, avoiding the leakage issue of pure PEG. Its latent heat values in the melting and solidifying processes are 56.2 and 30.6 J g−1, respectively. Additionally, this SSPCM has good thermal stability and thermal reliability for thermal storage and thermal management according to thermogravimetric and thermal cycling tests. The volume‐ and surface resistivity of the SSPCM at ambient temperature are 108.87 Ω m and 108.92 Ω, respectively, showing good antistatic performance.

Static electricity discharge on a radiography plate

Static electricity discharge on a radiography plate

Analysis of the fractional composition of coal dust and its effect on the explosion hazard of the air in coal mines

The relationship of the fractional composition is revealed and its influence on the explosiveness of the air in coal mines is revealed. The aim of the work is to determine the fractional composition of the studied samples of coal grades “L” (long-flame), “F” (fat) and “A” (anthracite) and its effect on the physical and explosive properties. It has been established that coal dust has a fractional composition containing more than 55% of fractions less than 94 microns and during natural grinding (without discharge of static electricity) in fine fractions (less than 94 microns) there are large conglomerates of particles that disintegrate when exposed to air currents similar to the speed of air movement in mountainous areas. workings. Based on the results obtained, further stages of work on the study of the explosive properties of coal dust are determined. The data on the granulometric and optical types of analysis are presented.

Проблемы учета состояния систем молниезащиты и защиты от статического электричества при оценке величин пожарного риска на производственных объектах

In paragraph 10 of Chapter 2 of the Methodology for determining the calculated values of fire risk at the production facilities, the list of the most likely events that may be the causes of fire-hazardous situations is presented. This list contains the phrase «the appearance of ignition sources in the places of formation of combustible gas-air mixtures». There are no more specific mentions about the probability of a fire from static electricity discharges and lightning strikes, as well as any other sources. This situation, at first glance, does not pose any problem, since it is assumed that the specialist performing the calculation will have to consider the likelihood of ignition sources appearing in places of the formation of combustible gas-air mixtures, which, obviously, will include both a lightning strike and its secondary manifestations, as well as a discharge of static electricity. However, lightning protection is not a part of the technological process of a production facility, but only ensures its safety. Also, lightning protection may not provide protection for an object with an explosive and fire hazardous technological process (for example, it does not correspond in parameters) or be absent altogether, which in practice will not in any way affect the procedure for calculating fire risk according to the specified methodology, in which the presence (absence) of a lightning protection system is not considered in any way. At the same time, fire statistics indicate the large number of fires from lightning and from discharges of static electricity. The 1st place in the world among large countries in the number of people killed in fires is an important indicator testifying the need for systemic changes in the approach to ensuring fire safety in Russia. Nowadays, it is often easier for an owner or tenant to obtain a document on the safety of an object than to ensure this safety in real practice. This cannot be achieved only by control — it is required to motivate all the participants for safety (for example, through compulsory insurance), which would become profitable to ensure fire safety.

Обеспечение электростатической искробезопасности применения стеклопластиков в технологических трубопроводах, аппаратах и оборудовании

The number of the insulating materials, including fiberglass products, are widely used in the construction, industry, oil and gas facilities, agro-industrial complex, transport, and defense. When using fiberglass, like some other insulating materials, it is possible to encounter their destruction and perforation, followed by a transition to the source of double-sided corona effect. Sliding spark discharges of static electricity, capable of igniting a combustible or explosive environment, are also likely to occur. The formation of such discharges depends primarily on the electrostatic and electrical strength properties of the used materials. These parameters should be used when assessing the most dangerous consequences of the fiberglass application in the process pipelines, apparatus, and equipment under the conditions of electrification processes. Comparison of the electrostatic and electrical strength properties of the corona-forming air layer in the electrization processes with the similar indicators of non-conductive structural materials is the main criterion that determines the possibility of their perforation and the occurrence of spontaneous sliding spark discharges. Electrostatic intrinsic safety should be ensured by eliminating static electricity discharges that are capable to become the flammable substances source of ignition (materials, mixtures, products). Sliding sparks can be eliminated by managing the electrostatic load. But at the same time, the hazard of ignition by discharges would remain if they could occur. When replacing the metal element (the wall of an apparatus or vessel) electrified by a liquid (technological medium), a product made of an insulating material, including fiberglass, with similar geometric, technical, and operational parameters, it is possible to maintain the efficient protection of the metal structure by means of its grounding.

МЕСТО СИСТЕМЫ МОЛНИЕЗАЩИТЫ И ЗАЩИТЫ ОТ СТАТИЧЕСКОГО ЭЛЕКТРИЧЕСТВА В МЕТОДИКЕ ОЦЕНКИ ВЕЛИЧИН ПОЖАРНОГО РИСКА НА ПРОИЗВОДСТВЕННЫХ ОБЪЕКТАХ

Purpose. The authors of the article draw attention to the explicit lack of such probable sources of combustible medium ignition as static electricity discharges, a direct lightning strike, as well as the impact of secondary factors of lightning (electrostatic and electromagnetic induction) in the Methodology for determining the estimated fire risk values at production facilities of. Methods. Statistical analysis methods: data assembling and grouping statistical observation materials; sampling; correlation and regression analysis, etc. have been used in the study. Findings. The article considers the established practice of determining the fire risk values and contradictions have been found between the Methodology for determining fire risk values at production facilities and the Technical regulations on safety of buildings and structures. The statistics analysis of fires caused by lightning and electrostatic discharges and the experience of other countries have made it possible to conclude that an additional coefficient should be introduced when calculating fire or explosion probability from the degree of compliance with lightning protection requirements. The authors draw attention to the problem of a risk-oriented approach – focus on the calculation result, which has an impact on ensuring fire safety. Research application field. It is advisable to include the results of the study in the scientific-research and development work of scientific-research organizations of EMERCOM of Russia and other ministries and departments. The materials can also be used when discussing the procedure for applying the risk-oriented approach to the control and supervisory activities in the Russian Federation. Conclusions. Failure of taking into account the state of protection against lightning and static electricity when calculating the fire risk of the facility reduces the reliability of the assessment for participants in the fire safety provision system.

Ethanol Storage Tank Explosion due to Static Elec-tricity Discharge in Crockett, California, USA in Oc-tober 2019

Ethanol Storage Tank Explosion due to Static Elec-tricity Discharge in Crockett, California, USA in Oc-tober 2019

ГЕОМАГНІТНИЙ ЕФЕКТ ТУРЕЦЬКОГО ЗЕМЛЕТРУСУ 24 СІЧНЯ 2020 р.

Purpose:The main cause of geomagnetic disturbances are cosmic sources, processes acting in the solar wind and in the interplanetary medium, as well as large celestial bodies entering the terrestrial atmosphere. Earthquakes (EQs) also act to produce geomagnetic effects. In accordance with the systems paradigm, the Earth–atmosphere–ionosphere–magnetosphere system (EAIMS) constitute a unified system, where positive and negative couplings among the subsystems, as well as feedbacks and precondition among the system components take place. The mechanisms for the action of EQs and processes acting in the lithosphere on the geomagnetic field are poorly understood. It is considered that the EQ action is caused by cracking of rocks, fluctuating motion in the pore fluid, static electricity discharges, etc. In the course of EQs, the seismic, acoustic, atmospheric gravity waves (AGWs), and magnetohydrodynamic (MHD) waves are generated. The purpose of this paper is to describe the magnetic effects of the EQ, which took place in Turkey on 24 January 2020. Design/methodology/approach: The measurements are taken with the fluxmeter magnetometer delivering 0.5-500 pT sensitivity in the 1-1000 s period range, respectively, and in a wide enough studied frequency band within 0.001 to 1 Hz. The EM-II magnetometer with the embedded microcontroller digitizes the magnetometer signals and performs preliminary filtering over 0.5 s time intervals, while the external flash memory is used to store the filtered out magnetometer signals and the times of their acquisition. To investigate quasi-periodic processes in detail, the temporal variations in the level of the H and D components of the geomagnetic field were applied to the systems spectral analysis, which makes use of the short-time Fourier transform, the wavelet transform using the Morlet wavelet as a basis function, and the Fourier transform in a sliding window with a width adjusted to be equal to a fixed number of harmonic periods. Findings: The train of oscillations in the level of the D component observed 25.5 h before the EQ on 23 January 2020 is supposed to be associated with the magnetic precursor. The bidirectional pulse in the H component observed on 24 January 2020 could be due to the piston action of the EQ, which had generated an MHD pulse. The quasi-periodic variations in the level of the H and D components of the geomagnetic field, which followed 75 min after the EQ, were caused by a magnetic disturbance produced by the traveling ionospheric disturbances due to the AGWs launched by the EQ. The magnetic effect amplitude was estimated to be close to 0.3 nT, and the quasi-period to be 700-900 s. The amplitude of the disturbances in the electron density in the AGW field was estimated to be about 8 % and the period of 700-900 s. Damping oscillations in both components of the magnetic field were detected to occur with a period of approximately 120 s. This effect is supposed to be due to the shock wave generated in the atmosphere in the course of the EQ. Conclusions: The magnetic variations associated with the EQ and occurring before and during the EQ have been studied in the 1-1000 s period range. Key words: earthquake, fluxmeter magnetometer, quasi-periodic disturbance, seismic wave, acoustic-gravity wave, MHD pulse

Improving the distribution uniformity of surface hardness of the cured CFRP molniezaschita coating during processing in a microwave field elektromagnitnom

In the structural elements of advanced air transport and wind turbines are widely used fiber-reinforced polymer composite materials: carbon and fiberglass. In order to increase the resistance of materials to static electricity and lightning discharges, lightning-proof coatings are included in the structure of the polymer composite materials. In the process of operation, there may be collisions of the plumage and planes of aircraft, as well as large-sized blades of wind turbines with solid objects. Therefore, along with the strength and resistance to high-amplitude low-cycle loads, one of the important characteristics of polymer composite materials that determine their performance properties is hardness. Strength and endurance of polymer composite materials products can be increased by short-term exposure to microwave electromagnetic field. The presence of a built-in metal structure introduces additional uncertainty in the perception of anisotropic polymer composite materials operating loads, as well as in the process of interaction with the electromagnetic field of ultrahigh frequency. The studies of the hardness distribution on the surface of carbon plastics with built-in lightning-proof coatings under different schemes of exposure to microwave electromagnetic field: from the lightning-proof coatings, from the side opposite to the lightning-proof coatings, sequential processing on both sides compared with the starting material. It is found that processing in a microwave electromagnetic field with an energy flux density (17-18) ×104 mW/cm2 for 2 minutes leads to a significant increase in the uniformity of the initial hardness of the surface of the samples.

Несанкционированное срабатывание ударно-волновых трубок неэлектрических систем инициирования

The article presents the results of experimental studies of non-electric initiation systems «Iskra», «Korshun-M», Exel and Rionel. The studies were aimed at determining the percentage of components of the reaction mixture of shock-wave tubes of various manufacturers, the sensitivity of these tubes to electrostatic discharge in the pilot breakdown plant, and the electrical potential that occurs during dynamic stretching of the shock-wave tubes. It is shown that unauthorized activation of the shock-wave tubes of non-electric initiation systems is possible with a simultaneous combination of mechanical (stretching with breakage of the shock-wave tubes), and the effects of electrical (static electricity discharge). In this case the shock-wave tubes of non-electric initiation system Exel contain considerably more aluminum than the shock-wave tubes of non-electrical initiating system devices «spark», Rionel and «Hawk-M». The resistance of shock-wave tubes from various manufacturers to electrostatic discharge depends on at least two parameters: the content of aluminum in the reaction mixture and the mechanical impact on them. The shock-wave tubes of non — electric initiation system Exel have the highest sensitivity to electrostatic discharge, and the shock-wave tubes «Korshun-M» have the lowest sensitivity. The minimum energy required for actuating the shock-wave tubes of the non-electric initiation system Exel on the experimental breakdown of the unit was 64 mJ, for the actuation of «Korshun-M» shock-wave tube 160 mJ is required. Dynamic stretching of shock-wave tubes (with or without rupture) leads to the formation of an electric pulse, while the forced electrification of the shock-wave tube surface reduces both the amplitude and the duration of the pulse. An exception is the shock-wave tubes of «Korshun-M» non-electric initiation system, in which the opposite picture is observed. It is proposed to prevent entanglement, pulling and rupture of the shock-wave tubes when handling non-electric initiation system.

Microwave Electromagnetic Field Influence on the Stability of Reinforced Carbon Plastics with Built-In Lightning Protective Coating during Dynamic Loads Action

Currently, significant part of advanced air transport structural elements is made of fiber-reinforced polymer composite materials (PCM), in particular, carbon plastics. In order to increase the resistance of these materials to static electricity and lightning discharges while air transport passes through lightning fronts, lightning protection coatings in the form of copper grids are incorporated into PCM structure . For load-bearing structures and aircraft shells, the influence of dynamic loads in the form of low-cycle high-amplitude loading and hitting by solid objects is typical. The presence of inbuilt metal structure introduces additional uncertainty into the anisotropic PCM perception of these loads. Studies of the strength of carbon-fiber-reinforced plastics with built-in LPC at low-cycle loading and their perception of shock load has been carried out. It is established that short-term processing in the microwave electromagnetic field leads to an increase in the strength of the samples under low-cycle loading by 210%. CFR with LPC absorbs a part of the shock impulse and does not transfer it completely to subsequent structures. The microwave electromagnetic field helps to improve the damping properties of materials by 19.5% in average with a low impact energy. With an increase in the impact force energy, the effect of the microwave electromagnetic field is manifested to a less extent; further improvement of the damping properties does not occur. It increases the elastic characteristics of the material and practically does not lead to cracking and exfoliation of the surface layer in the impact area. The results can be used in the development of technologies for final processing of the products made of PCM in order to increase their resistance to dynamic loads.

Mitigating the Effects of ESD using ESD Capacitor and TVS Diode

Electrostatic discharge (ESD) can extremely damage and affect the operation of the electronic devices which is mainly due to the discharge of static electricity through the human or an object contact to the electronic devices. Though ESD protection has been made in many ICs internally, it can only sustain a certain level of voltage surge. To withstand high voltage surge mainly above 4kV, external ESD protection devices such as ESD capacitor and TVS (Transient Voltage Suppressor) are used for signal integrity considerations. For automotive application using 12V battery, a circuit model which has the capability to explain the behaviour of the ESD protection device for 8kV is proposed. Comparison between simulation by LTspiceXVII and calculated results are shown and also presents the pros and cons of two different approaches. When comparing ESD capacitor to TVS diode, the result shows 32.8 percentage reduce in voltage, 1 percentage increase in current and 1.43 percentage reduce in power dissipation. In addition to the theoretically calculated capacitor value, other capacitors are used and its results were presented

Research of electrostatic field measurement sensors

Due to the discharge of static electricity, the force of static electricity and the phenomenon of electrostatic induction, it poses a major safety hazard for on-site operations personnel and equipment, resulting in significant losses and hazards. When people work on site, they can't intuitively know whether there is static electricity and quantify the static charge on the device. Therefore, this article describes the design principle of the sensor in the electrostatic field measurement in detail. In this paper, theoretical analysis and simulation analysis are carried out for two different working modes of variable-area and variable-pitch sensors. The experimental results verify the measurement principle of the vibration capacitor sensor, and the MEMS electric field sensor is also described in detail. This paper analyzes and summarizes the characteristics of existing electrostatic field measurement sensors at home and abroad in order to select reference for electrostatic field measurement sensor design and actual scene measurement operations.

ANALYSIS AND JUSTIFICATION OF PHYSIC-MATHEMATICAL MODELS AND METHODS OF CALCULATION OF RISKS OF EMERGENCY SITUATIONS AT AUTONOUSING STATIONS (ANS)

Failure leads to accidents at industrial and other facilities – an event that impairs the operational status of equipment and facilities. Different types of failures can lead to the same emergency situation and the same failure can lead to different emergency situations. In turn, an emergency situation is a combination of conditions or circumstances, the occurrence of which can lead to the occurrence of risk factors - causes, driving forces that lead to a negative impact on different recipients. Each situation can lead to a single risk factor, and to several at once, which, in turn, can lead to the occurrence of one or several types of risk, depending on the nature of the damage.The cause of an emergency is a failure (accumulation of single failures) initiating an event – the development of an accident. Estimates of modern chemical production give an indicator of the reliability of the accident 10-3, that is, great potential technical capabilities for managing risk in the state of the actual reliability of facilities and equipping them with means of monitoring, diagnostics and emergency protection.The article examines the causes of fires and explosions that can occur at gas-filling stations at the time of receiving liquefied gas in underground tanks, storage in tanks, filling gas cylinders and fuel tanks of cars from tanks and storage of cylinders. It is established that the common causes of emergency situations are: open fire, sparks, static electricity discharges, lightning discharges, spontaneous combustion. Calculations were carried out of the affected areas by the shock wave, the fire of the strait and the fireball, the values of individual risks for various types of accidents.Identified the most significant factor in the accident. Analyzed the consequences of accidents, provides recommendations on the use of the results in practice.

THE TRANSDUCTION OF CELLULAR MEMBRANE PROTEINS AND STRUCTURAL CELL MEMBRANE ALTERATIONS INDUCED BY EXOGENOUS ENERGY WAVES ENERGIZING LIPID DROPLETS AS THE PROPOSED UNDERLYING MECHANISM IN VERY INTENSIVE PRESSURE PULSES TREATMENTS CLAIMS TO A CANCER CURE

The purpose of this manuscript is to propose a mechanism for a cancer cure claim resulting from exogenous stimulation of cancer tumors by very intense pressure pulses (VIPPs) treatments from commercially available energy hardware (CellSonic). Could it be that exogenous continuous pulsating waves alter the cellular lipid bilayer; and this in turn also influence intracellular cell signaling? In Vitro experiments are presented supporting the above-stated thesis. The evidence will show via in vitro experiments how trapping energy from bursting oxygen bubbles induces static electricity discharges up to causing luminescence of intracellular lipid droplets. Figures and video recordings documenting the above-mentioned phenomena are presented. In summary, proposed is a mechanism explaining a cancer cure claim via VIPPs.
 1 AAE: Idealized, designed wrote manuscript and conducted in vitro experiments possibly demonstrating a mechanism for VIPPs cancer cure.
 2 SH: Added theoretical principles in the discussion supporting the proposed VIPPs mechanism to cancer cure.

INTRODUCING IN VITRO EXPERIMENTS OF OXYGEN BUBBLES SHOCKWAVES TRIGGERING INTRACELLULAR LIPIDS LUMINESCENCE: IMPLICATIONS IN CANCER ETIOLOGY

Background The main purpose of this manuscript is to introduce a mechanism supporting a previously hypothesized factor in cancer origin, where endogenous energy emission during cell respiration was identified as additional factor in cancer origin. Recent published reports identify the pressure profile of shockwaves as causing lipid droplets membrane deformation. Lipid metabolism has been highlighted to have a key role in cancer metabolism, and metastasis; for example, several publications have suggested targeting lipid metabolism of cancer cells as a strategy to control metastasis. New studies have revealed that lipid layers are responsible for the storage and discharge of static electricity. This manuscript introduces shockwaves from oxygen bubbles bursts as a mechanism causing intracellular lipids discharge or static electricity. The effect causes shape changes of lipid droplets up to a light emission stage. Materials and Methods Cheek cells intracellular material, including DNA strands and lipid droplets were precipitated in a test tube by following written instructions on DNA precipitation published online by The University of Michigan. The DNA precipitate was transferred onto a clean glass slide and covered by a similar one and dubbed a sandwich (SDW). A slide assembly was developed where the effect of oxygen bubbles cavitation-induced shockwaves on the trapped DNA precipitate and lipid droplets were recorded. Microphotographs and video recordings were stored in a computer via a video-microscope. Results Lipid droplets exposed to prolonged shockwaves energy were documented to undergo recurrent expanding architectural deformation up to a final contracting phase where light was emitted. Conclusions Intracellular lipid droplets are ubiquitously present in cells; and recent research has shown their expanded roles in cellular signaling in both mitotic and non-mitotic cells. In cancer, one highlighted key role is the potential of lipid metabolism in metastatic colonization. Data introduced in this manuscript demonstrates a direct consequence of ROS (H2O2) decomposition (via oxygen bubbles bursts) as a trigger for lipid intracellular droplets emission of light radiation, thus supporting a previously proposed biophysical mechanism in cancer origin.

Overview of Static Electricity in Some Industrial Operations with Petroleum Products

Fires and explosions of petroleum products vapors triggered by static electricity discharges are not uncommon during various technological operations. Investigation of their role in accidents is one of the more labor intensive and complicated forensic tasks. The purpose of this work is to provide forensic experts with general information on electrostatic charging mechanisms in liquids and solids, as well as on production operations with petroleum products where static electricity may occur, leading to the ignition of their vapors.

Low energy ion scattering (LEIS) of as-formed and chemically modified display glass and peak-fitting of the Al/Si LEIS peak envelope

Flat panels displays (FPDs) are commonly manufactured on highly-engineered glass substrates known as display glasses. As FPD pixel sizes decrease and pixel densities increase, the surface composition and surface properties of these glasses have an increasingly important impact on device yield, influencing static electricity buildup and discharge, particulate adhesion, rate of contamination, and device lifetime. Here, we apply low energy ion scattering (LEIS) to the analysis of Eagle XG®, a widely used display glass. Surfaces were treated with production-line relevant chemistries including acids, bases, etchants, industrial detergents, and plasmas. The resulting surfaces were compared to as-formed melt surfaces, fracture surfaces, and fibers formed from remelted Eagle XG®. LEIS revealed the elemental composition of the outermost atomic layer of these materials, detecting all major Eagle XG® constituents except boron. The surface composition of the glass differed as a function of forming process used to fabricate it as well as surface treatment. The surface concentration of aluminum on the as-formed melt surface differs significantly from the bulk composition (1–5% vs. 30–31% Al2O3 surface coverage, respectively). HCl treatment depleted the surface of all species except silica. HF treatment depleted modifier species from the glass surface to a lesser extent. An alkaline industrial detergent produced an increase in alumina relative to the as-formed glass surface (8–12% vs. 1–5% Al2O3 surface coverage, respectively). Treatment with an atmospheric-pressure plasma had no detectable impact on the elemental surface composition of the glass. Aluminum and silicon generally give overlapping signals in LEIS, and these signals could only be resolved here through a combination of optimized experimental conditions and data fitting. Various approaches to this data analysis were explored, including a guided least-squares approach referred to herein as informed sample model approach (ISMA), wherein the pure spectral components required for the fit were mathematically derived from the sample spectra. Most commercial display glasses contain both Al and Si, but there is little discussion of the deconvolution of these LEIS signals in the technical literature.

The Influence of Electrostatic Charge on the Stability of Electronic and Electrical Equipment

In discharge of static electricity caused by friction, the voltage can reach 25 kV and the discharge current can reach up to tens of amperes with a rise time from fractions of nanoseconds. Electrostatic discharge can lead to malfunctions of electronic equipment or even to its being damaged. The regulations require checking the operation of electronic equipment under the influence of electrostatic discharges. Tests for resistance to such discharges can be performed using specially developed test generators (simulators) of electrostatic discharges. During the tests, the influence of discharge, the parameters of which are regulated in accordance with the basic standards for test methods, is simulated. At the design stage of electronic equipment, it is proposed to use the model of electrostatic discharge simulator to evaluate the expected voltages on the equipment case and its components for prediction of test results.