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Ea. the information in, Grounding, Is provided – Grass Valley K2 Dyno S v.3.0 User Manual

Page 20: Grounding requirements for personnel

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ESD Protection

K2 Dyno S Replay Controller

20

Installation & Service Manual

4 December 2012

Static is generated as personnel move (or as equipment is moved) across a floor’s surface.
Carpeted and waxed vinyl floors contribute to static build up.

Work Surfaces

Painted or vinyl-covered tables, chairs, conveyor belts, racks, carts, anodized surfaces,
Plexiglas covers, and shelving are all static generators.

Equipment

Any equipment commonly found in an ESD work area, such as solder guns, heat guns,
blowers, etc., should be grounded.

Materials

Plastic work holders, foam, plastic tote boxes, pens, packaging containers and other items
commonly found at workstations can generate static electricity.

Grounding Requirements for Personnel

The information in this section is provided to assist you in selecting a grounding method.
This information is taken from ANSI/ESD S20.20-2007 (Revision of ANSI/ESD
S20.20-1999).

Product Qualification

Product qualification is normally conducted during the initial selection of ESD control
products and materials. Any of the following methods can be used: product specification
review, independent laboratory evaluation, or internal laboratory evaluation.

Compliance Verification

* For situations where an ESD garment is used as part of the wrist strap grounding path, the
total system resistance, including the person, garment, and grounding cord, must be less

than 3.5 x 10

7

ohm.

Personnel Grounding
Technical Requirement

Test Method

Required Limits

Wrist Strap System*

ANSI/ESD S1.1 (Section 5.11)

< 3.5 x 10

7

ohm

Flooring / Footwear System –
Method 1

ANSI/ESD STM97.1

< 3.5 x 10

7

ohm

Flooring / Footwear System –
Method 2 (both required)

ANSI/ESD STM97.1

< 10

9

ohm

ANSI/ESD STM97.2

< 100 V

Personnel Grounding
Technical Requirement

Test Method

Required Limits

Wrist Strap System*

ESD TR53 Wrist Strap Section

< 3.5 x 10

7

ohm

Flooring / Footwear System –
Method 1

ESD TR53 Flooring Section and
ESD TR53 Footwear Section

< 3.5 x 10

7

ohm

Flooring / Footwear System –
Method 2 (both required)

ESD TR53 Flooring Section and
ESD TR53 Footwear Section

< 1.0 x 10

9

ohm