Electrostatic Sensitive Devices
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NOTE
This Manual is written for service and operation personnel in the high voltage power line environment.
All existing safety instructions in the environment of the user must be observed and only trained and
instructed personnel shall be allowed to work with the equipment.
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CAUTION
Electrostatic sensitive devices are protected against destruction by electrostatic charge with protective
structures at the inputs and outputs. In unfavorable cases, however, plastic floor coverings, non-conductive
work surfaces, or clothing containing artificial fibers can result in such high charges.
These charges can damage or even destroy the electrostatic sensitive devices despite the protective
networks mentioned. If a device is damaged, its reliability decreases drastically although the effects
of the damage are noticeable a long time before.
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In order to ensure that electrostatic charges are completely eliminated when working on the system,
comply with the following instructions in order to avoid moderate or minor damage:
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- Before carrying out any work on the system, ground yourself with a wrist strap.
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- When working on modules, always place them on a grounded conductive surface.
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- Transport modules only in suitable protective bags.
The following points must also be observed during installation:
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Before installing the device, lay and connect the grounding wire to ground potential.
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Connect the grounding wire immediately after installing the device or setting up the cabinet.
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Use shoe grounding strips.
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DANGER
The device can be damaged if not installed in a locked room.
Death or severe injuries can occur if a foreign person has access to the equipment.
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Install the device in a locked room with admission for commissioning personnel and trained operating
personnel only.
NOTICE
The temperature in the room shall not exceed the temperatures specified in the operating rules.
The device can be damaged if it is not operated in accordance with regulations of the operation.
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Provide sufficient cooling or heating (for outside operation in cold areas or during cold times).
1.5
Safety Instructions
1.5 Electrostatic Sensitive Devices
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
25
C53000-G6040-C605-1, Edition 03.2020
