Page 2 - Treston ESD

ESD PROTECTION EARTHING POINT FOR
ACCESSORIES
In ordinary movement a person creates static electricity. In these
circumstances hand contact with a conductive material will discharge contact between static-
static from the body very rapidly. This is ESD = Electro Static Discharge. dissipative laminate and
Static electricity has become a major problem in the electronics industry. earthing point
Usually this passes unnoticed because our bodies do not feel discharges static-dissipative laminate
below 3000 volts. We may see ESD above 5000 volts as a spark. The
most sensitive components may be damaged by a charge of just 30 volts, ABS edging
and many standard components are sensitive to charges of between balancing laminate
100...200 volts. The presence of inherent ESD is not easy to detect. earthing point for accessories
Product damage may go undetected at the production stage, but lead
to failure at a later date. Once the potential dangers of ESD damage earthing cable, 1 megohm
are understood, effective methods of prevention can be put in place. All- resistor
inclusive protection from electrostatic discharges is a necessity whenever
modern electronic devices are handled. An EPA (ESD Protected Area)
should always use ESD protected materials to prevent component
damage. Protection should systematically extend from goods inwards
areas to final test and packaging. A systematic approach to controlling
static in the workplace should include the following;

• ESD protected workstation, transport, storage systems
• ESD protected production tools and instruments
• ESD protected work clothes, shoes, wrist straps
• education of personnel, instructions, quality control
• cleanliness is important as dust acts as an isolator
• audits to ensure continuous ESD protection

QUALITY

Treston is an ISO 9001 registered company. Certification includes the
design, development, manufacture and marketing of the company’s
range of storage equipment and industrial furniture. Most of our industrial
furniture also has the GS-quality approval (TÜV). TRESTON ESD products
and their materials are to EN 61340-5-1 international standards.
Many of our ESD products meet with cleanroom requirements and
are to the international standard EN ISO 14644-1. class 7. Equivalent
Finnish standard is FS 209 E, where the number of particles is under
10 000 per cubic metre of air.

ESD MATERIAL

Static dissipative high pressure laminate

• resistance surface to ground 106 - 108 ohm
• surface to surface 106 - 109 ohm
• resistant to heat, solder flux, most chemicals and solvents

Semiconductive epoxy powder coated steel

• surface resistivity 105 - 109 ohm

Semiconductive polypropylene = PP

• surface resistivity 103...106 ohm
• volume resistivity 103...106 ohm
• temperature tolerance -20...+70°C

Semiconductive polystyrene = PS

• surface resistivity 103...106 ohm
• volume resistivity 103...106 ohm
• temperature tolerance -40...+ 55°C
STANDARD COLOURS
The standard colours of steel parts of our workbenches, trolleys, shelving
and cabinets are shown below. Colours reproduced here are as
accurate as print techniques allow.

RAL 7035 RAL 7038 RAL 7045

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