HOGERT HT5K517 Instruction Manual page 4

Antistatic properties
Antistatic footwear should be used if it is necessary to minimize electrostatic build-up by dissipating electrostatic charges,
thus avoiding the risk of spark ignition of, for example flammable substances and vapours, and it the risk of electric shock
from any electrical apparatus or live parts has not been completely eliminated. It should be noted, however, that antistatic
footwear cannot guarantee an adequate protection against electric shock at it introduces only a resistance between foot
and floor. If the risk of electric shock has not been completely eliminated, additional measures to avoid this risk are
essential. Such measures, as well as the additional tests mentioned below, should be a routine part of the accident
prevention programme of the workplace.
Experience has shown that, for antistatic purposes, the discharge path through a product should normally have an
electrical resistance of less than 1000 MQ at any time throughout its useful life. A value of 100 kQ is specified as the lowest
limit of resistance of a product when new, in order to ensure some limited protection against dangerous electric shock or
ignition in the event of any electrical apparatus becoming defective when operating at voltages up to 250 V. However, under
certain conditions, users should be aware that the footwear might give inadequate protection and additional provisions to
protect the wearer should be taken at all times.
The electrical resistance of this type of footwear can be changed significantly by flexing, contamination or moisture. This
footwear will not perform its intended function if worn in wet conditions. It is, therefore, necessary to ensure that the
product capable of fulfilling its designed function of dissipating electrostatic charges and also of giving some protection
during the whole of its life.
The user is recommended to establish an in-house test for electrical resistance and use it at regular and frequent
intervals.
If the footwear is worn in conditions where the sole material becomes contaminated, wearers should always check the
electrical properties of the footwear before entering a hazard area.
Where antistatic footwear is in use, the resistance of the flooring should be such that it does not invalidate the protection
provided by the footwear.
In use, no insulating elements should be inserted between the inner sole of the footwear and the wearer's foot, except
normal socks. If any insert is put between the inner sole ant the foot, the combination footwear/insert should be checked
for its electrical properties.
6.02.2020 r.
Högert Technik GmbH
Pariser Platz 6a, 10117 Berlin, Germany
Manufacturer's Address:
GTV Poland Sp. z o.o. Sp. k., ul. Przejazdowa 21
05-800 Pruszków, Poland
EN ISO 20345:2011