What is a wrist strap, and what is it for

You've probably heard this phrase "wrist strap". Do you know what it is? And in any case without it simply can not do? If not, then in this article you will learn the answers to these questions. So, let's begin.

A little bit about the guests and regulations

If we are open 734.5.1 GOST R, then it will be spelled out the requirement that all staff working with vulnerable CHESR - components should be grounded without fail.

two types of ground and there exist:

1. Through the footwear and flooring.

2. And using an antistatic wrist strap.

If you are constantly faced with similar elements (darn all kinds of gadgets, build a variety of crafts, which are used, for example, field-effect transistors), then you should be aware of the extremely harmful effects of accumulated static and anti-static wristband you have just It is bound to be.

Appearance

So, in a completely disassembled bracelet looks.

The set includes a collar, a crocodile and a wire. Thus the so-called "banana" to the riveting is carried out in a stretched condition has a length of 120 centimeters, and in the "quiet" state 50 cm.

In this case, all fasteners are made according to all the guests, namely, paragraph 4.7.2.6, which states that grounding wire in such antistatic devices must have quick-fastening directly to cuff.

And here is how the plate that is in contact with a human hand.

Reading all the same Standard (paragraph 4.7.2.5), we learn that in such bracelets must necessarily present a current limiting resistor (which is usually soldered to the receiving portion of the cord).

Checking the presence or absence of a resistor by using a conventional multimeter using the function "resistance test"

As you can see, the meter indicates a resistance of 1 MW, which tells us that the resistor is present and it is OK.

Important. In such bracelets resistance is most commonly used from 1.0 to 6.0 MW with power dissipation of 0.25 watts and voltage limit of 250 volts. This means that these bracelets can be used in 230 networks only and in no way higher.

connection rules

Although the product is extremely simple, but it must be properly connected.

Remember! Connect an antistatic wrist strap to ground only. Do not connect it with a scattering mat if it is not its grounding point. Also, in any case, do not connect the power cord to the edges of the mat.

So wrist strap - this is an indispensable gadget for those who work with sensitive to static charge, radioactive elements. If you want to buy it yourself, then your I bought in this store.

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