A glance at each of the four major problems, as well as how they’re addressed below:
A fire could start because of electrostatic attraction and repulsion. Electrostatic Discharge (ESD) in electronics could cause shocks to workers.
Contents
The electrostatic Attraction and the Electrostatic Repulsion
This is probably the multiple standard problems in the plastics, packaging, paper, textile, and other industries where these things are made. It looks like products don’t behave right, like sticking together, repelling each other, sticking to machinery, dust attraction on moldings, bad winding, and many other things. The bigger the static charge and the closer the objects are to each other, the more serious the problem will be.
The electric field lines get attracted or pushed away. If the two authorities are of the exact polarity, they will not get together. The additional varied they are, the more likely they will want to be together. If only one of the products is charged, it will attract the other products by making them have the same charge as the charged one:
A fire risk (EX Areas)
In the coating, gravure printing, and other industries where combustible solvents are used, the risk of fire is significant because these solvents can catch fire very quickly. It starts a fire because of the static charge on the film, which makes a spark discharge. The following is a short theoretical introduction to how a static discharge can start fires in flammable places.
The ability of a discharge to start a fire depends on a lot of factors:
- The type of discharge you do
- The source of the leak
- The power of discharge
- The rate at which people get sick
- This usually means some solvent gas in the air, but it could also mean dust or liquid.
- This is called the flammable area’s minimum ignition energy (MIE).
Discharges come in many different types
Three types of discharge are essential:
Sparks usually come from a conductive body that isn’t connected to the rest of the world’s electricity. The body, machine part, or tool could be this. It is thought that all of the energy is used up in a single spark. If the point is more than the solvent vapor’s Minimum Ignition Energy (MIE), then an ignition could happen, but it’s not inevitable. Calculating the energy in a spark is done this way: Energy in Joules = 12 CV2.
It’s called Brush Discharge when a corner of a machine part concentrates the charge in a larger sheet or web of non-conductive material, like a rubber band. Sparks are usually not as powerful as they used to be.
It happens when there is a lot of the same polarity on both sides of a piece of plastic. This is called “Propagating Brush Discharge.” This could be caused by rubbing or a lot of powder coating. In this case, it’s like discharging the plates of a capacitor. It can be more dangerous than a spark.
The discharge comes from and gets its power from two places: the ground and the sky
Size and shape are essential things to think about. The more energy a body can hold, the bigger it is. Sharp points make the field more robust and make it more likely to discharge.
Amount of Time It Takes to Drain
Resistance can make it more difficult for power to get out and make it less dangerous. This is true for things like a person’s body, which isn’t very conductive. People should think of their bodies as starting all solvents with less than 100 mJ of Minimum Ignition Energy (MIE), even though they have 2 or 3 times this amount of energy stored in their bodies. A corona discharge has not been talked about here. In this case, it is a slow, low-energy discharge from a point. It is only seen as a problem in the most sensitive places.
Minimum Ignition Energy (MIE)
The Lowest Ignition Level The energy of the solvent and how much of it is in the dangerous area are essential. The MIE could start a fire if it’s less than the discharge power.
Other things that can start fires in dangerous places are ungrounded operators and floating conductors. An operator who walks through a hazardous area in training shoes or other non-conductive shoes could cause sensitive solvents to catch fire. A piece of machinery that hasn’t been found and is also conductive is dangerous. Everything in a hazardous place needs good grounding.
Operators Suffer Shocks
The more critical health and safety issues become, the more essential shocks to operators become. Static surprises can be unpleasant, but they aren’t usually dangerous unless they cause a person to be thrown into machinery or the path of an oncoming car.
There are two main reasons:
- Induction charging
- Shocks from the Product
Charging with induction
It might happen to a person standing near an object that is charged. This is called induction. The operator is charged. This charge stays in the operator’s body until they touch an earthed part of the machine. There will be a shock when the cost goes to earth.
People who work with charged objects and materials also get a buildup of electricity in their bodies because their shoes aren’t made of metal. The charge can get out of the machine when the operator touches a metal part. This can lead to a shock. People who walk on nylon carpets get surprises because of the static electricity that builds up between the rug and their shoes.
When you get out of a car, you get a shock because there is a charge between the seat and your clothes when you separate them. As the driver gets out of the vehicle, touch a metal part of the car, like the door frame. Because the charge goes through the vehicle and its tires, it doesn’t shock anyone.
Shocks came from the Product
A shock from the material can happen, but it’s not very often. A massive charge in a winding reel could be concentrated by the fingers of the person winding it. This could make it so that the order breaks down and forms a discharge.
Induction can also happen if a metal object isn’t connected to the ground in an electric field. It can become charged because of this. A person who touches the metal object will get rid of the charge. Because it is conductive, the order can move around.
Electricity can cause a buildup of electrostatic charge in things like electronics
It’s essential to control static electricity when handling electronic parts and components on modern control systems, such as RFID tags and labels. A few volts is much less than the thousands of volts typical in other industrial applications. This is because, in electronics, static electricity can be very low. People who work with industrial static eliminators usually don’t use them because they need balanced ionization.
There is a lot of risk because of the static charge in the body, which can be very high. Why do people who work with electronics need wrist straps? The wrist straps help get rid of static electricity in the body, which can be dangerous. Ionization equipment is used to eliminate the charge in other products and materials that can’t be grounded, like non-conductive materials.
The current heat from the body or another object evaporates junctions, interconnects, and the space between tracks in the electronic parts. The high voltage also breaks down the thin oxide coatings on MOS and other devices that have been coated with it. This causes the Product to break down. Sometimes the component isn’t destroyed, which can be even more of a problem because the failure will happen later when the Product is being used, which can be even more of a problem.
