HP Pro 3380 Spezifikationen PDF herunterladen (Seite 46)

Removing DIPs* from vinyl tray

Removing DIPs* from Styrofoam

Removing bubble pack from PCB

Packing PCBs in foam-lined box

2,000 V

3,500 V

7,000 V

5,000 V

4,000 V

5,000 V

20,000 V

11,000 V

11,500 V

14,500 V

26,500 V

21,000 V

*These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

NOTE: 700 volts can degrade a product.

Preventing Electrostatic Damage to Equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the

degree of sensitivity. The following packaging and grounding precautions are necessary to prevent

damage to electric components and accessories.

●

To avoid hand contact, transport products in static-safe containers such as tubes, bags, or

boxes.

●

Protect all electrostatic parts and assemblies with conductive or approved containers or

packaging.

●

Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.

●

Place items on a grounded surface before removing them from their container.

●

Always be properly grounded when touching a sensitive component or assembly.

●

Avoid contact with pins, leads, or circuitry.

●

Place reusable electrostatic-sensitive parts from assemblies in protective packaging or

conductive foam.

Personal Grounding Methods and Equipment

Use the following equipment to prevent static electricity damage to equipment:

● Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground

cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord

must be connected and fit snugly into the banana plug connector on the grounding mat or

workstation.

●

Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible

with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on

both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.

Static Shielding Protection Levels

Method Voltage

Antistatic plastic

Carbon-loaded plastic

Metallized laminate

1,500

7,500

15,000

36 Chapter 6 Routine Care and Disassembly Preparation

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