How the dielectric gloves are checked for punctures?

When performing electric shock-related work, special dielectric gloves are used, which are an individual hand protection agent. The purpose of this product is that the material that does not pass through the electric current, protects the skin of the fingers and palms from electric shock, when a person touches the instruments or details under electrical voltage. Dielectric gloves are appropriately used only if the power voltage is not higher than 1000 volts. Additional human protection measures will be required to work with higher electrical stress.

Dielectric gloves are produced in Russia according to GOST, and Latex or dense rubber are taken as material. The main feature of such products is that they are made seamless, or seams are performed using leaf rubber. To work in dielectric gloves is safe, this tool of protection is required properly and timely check for suitability.

Need to check

Dielectric products are checked for punctures before use. Check before each use should be carried out very carefully, since even a barely noticeable eye defect leads dielectric gloves into disrepair, A man working in them exposes its life to a serious risk of electric shock. In the absence of punctures, the product from latex or rubber is examined before work visually, as well as inflave it with air by twisting. But such an inspection is clearly not enough.

Before working, it is required to make the inspection of gloves for the presence of inner and outer surfaces of dirt or moisture – dirty or wet protection means lose their dielectric properties and cannot protect a person from electric discharge.

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To contain means of protection in working condition, after work, they are well washed with soap or soda solution and dried, and sometimes disinfected.

After processing, the dielectric gloves need to dry very well.

In some cases, leather crags or protective tarpauly mittens are worn from above for additional protection of latex or rubber on dielectric gloves. In the case when the electrical work is carried out in the conditions of minus air temperature, knitted gloves that will help prevent the preservation and frostbite of the fingers or palms in the dielectric protection.

How to check?

According to safety safety, dielectric protective products, designed to protect hands, must be checked 1 time in 6 months. To identify their suitability for operation. Tests are carried out in special laboratories, where funds are subject to specific testing using electric current. The essence of the test is that for 60 seconds. The gloves are subjected to voltage using an electricity equal to at least 6 kilovolts, while the dielectric products should show electrical conductivity in the test indicators, otherwise they are unsuitable for use and are subject to write-off.

The procedure for testing the dielectric properties of protective gloves begins with the fact that the products are immersed in the container made of metal and filled with water, the temperature of which does not exceed 20 ° C. Immersion gloves are performed so that the free dry and clean edge of 0.5 cm gloves remains above the water surface. Special electrodes are then lowered inside gloves. To one transformer wire, a container will be connected, filled with water where gloves are immersed, and the other wire will be required for grounding.

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Next, through the transformer to the electrodes, an electric current is served. Thanks to the measuring device connected to this system, a milliammeter can determine the current conductivity readings.

Such a test will show not only how the dielectric pair of gloves is integrated, but what power it passes through itself. If the indicators exceed the standards established by the technical testing rules, the dielectric gloves are not allowed to use.

Recommendations

For safe conduct of electrical work under voltage not exceeding 1000 volts, it is necessary to purchase only those dielectric protective gloves on which there is a standard factory labeling with the designation “En” or “EV”. Other types of rubber or latex protective equipment for this purpose are not suitable and will not provide you with hand protection from electric shock. As for the rules of operation of gloves-dielectrics, in addition to compliance with their purity, dryness and integrity, it is important to know even that during the conduct of electrical installation work, the edges of dielectric gloves are prohibited.

Before taking gloves, used to protect your hands from the damage to the discharge of electrotock, you should make sure that these dielectric products timely passed test laboratory tests.

You can get such information, looking at the stamp, which after the tests put the indelible paint for each glove. Typically, this stamp is well noticeable, but you should pay attention to the fact that the information applied by stamp was readable. If the dielectric gloves did not check for more than 6 months, then use them to perform electrical voltage-related works, it is impossible.

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Check, or no test laboratory tests Dielectric gloves, and using the presence of a record that must be entered into a special magazine. The fact is that after laboratory testing of a protective dielectric product, the protocol is drawn up on the results of the verification and record in a special account journal. Using dielectric gloves, you should know that it is possible to dry them after processing or disinfection only under room temperature and do not expose the product with heating using electrical appliances. With a strong heating, the strength of the rubber is significantly reduced, the product is covered by microcracks, not visible to the eye, and a person using such a means of protection risks to get a serious electrician, life-threatening.

About testing dielectric gloves See further.

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