Praticas ESD

Electrostatic Discharge (ESD) - Standard Practices

A. General

(1) This task gives the procedure for handling electronic components or systems ESD

susceptible.

(2) Electrostatic protection shall be maintained at a potential above a "zero" voltage ground

potential as long as all items in the system are at the same potential. For this, all conductors

in the environment, including personnel, shall be bonded or electrically connected and

attached to a known ground or contrived ground (as on aircraft). This task gives the

procedure to create an equipotent balance between all items and personnel.

(3) This maintenance technician is necessary to do this task:

• 1 - Electrical/Avionics Systems

B. Tools and Equipment

ITEM GSE 014 WRIST STRAP

ITEM GSE 015 WRIST STRAP TESTER

ITEM GSE 203 MODULE SHIPPING CONTAINER

C. Job Set-Up

(1) Make sure that the ESD workstation table is in perfect conditions for use.

(2) Remove all items from the work area, such as paper, tape, styrofoam cups and

clothing that can cause static electricity. Because these items are insulators, static

charges will not discharge even when these items are on a grounded surface.

(3) Make sure that the ESD bags are available to keep the ESDS modules protected after

they are removed from the cabinet.

NOTE: All ESDS devices are identified with the ESD symbol (Figure 201).

D. ESDS Devices Handling (Figure 201) (Figure 202) (Figure 203)

(Figure 202)

(1) Put on and adjust the GSE 014 until you get a direct contact with the skin (5).

(2) Do the grounding integrity test of the GSE 014 as follows:

(a) Connect the ground cord (4) to the wrist strap (5).

(b) Connect the plug of the ground cord to the GSE 015 (1).

(c) Press the test button (3) for 2-3 seconds.

Embraer 195 - AMM 3213 910-801-A/200

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Rev 17 - Nov 12/13

Copyright © by Embraer S.A. All rights reserved – See title page for details.

Result:

1 The green (OK) LED (2) comes on. It indicates that the wrist strap and

ground cord assemblies operate correctly.

NOTE: • If the red (no OK) LED (2) comes on, do a check of the GSE

014 assembly and replace it if necessary.

• Do the integrity test again whenever you remove or replace

the GSE 014.

(d) Disconnect the plug of the ground cord from the GSE 015 (1).

(3) Connect the plug of the ground cord to the aircraft ESD grounded point. These points

are identified with the ESD ground point symbol (Figure 203).

(4) You are now safely grounded and can start your work.

NOTE: When you do the work with ESDS devices, make sure that the ground

connections are in good conditions.

(5) When you remove/install or handle ESDS devices, you must use correct ESD

protective packaging to keep or send these devices.

(6) Use the GSE 203 to keep or send LRMs.

E. Job Close-Up

(1) Go back to the procedure of the related task.

Embraer 195 - AMM 3213 910-801-A/200

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Rev 17 - Nov 12/13

Copyright © by Embraer S.A. All rights reserved – See title page for details.

ESD Labels - Maintenance Practices