RPS 3EGF020333, Руководство пользователя

Страница: 37 / 90

5 Ensuring that the installation is dead
Personnel: n Qualified electrician
Protective equipment: n Safety helmet with visor
n Protective clothing
n Protective gloves
n Safety footwear
5.1 Isolate from the power supply
The part of the system on which work is to be performed must be
disconnected from all infeeds.
The disconnection must involve isolating distances in the air or
equivalent insulation in order to ensure that no flashover takes
place.
5.2 Securing against re-connection
Re-connection must be reliably prevented.
Depending on the legal situation, it may be necessary to attach a
prohibition sign, for example.
5.3 Establishing a dead installation
Tool: n Voltage tester
In the work range, verify that all poles are dead using suitable
measuring/testing equipment, e.g. voltage testers.
5.4 Earthing and short-circuiting
In high-voltage systems and some low-voltage systems, all parts
on which work is to be carried out must be earthed and short-
circuited at the work location.
Requirement:
n The earthing and short-circuiting equipment, cables and con-
nections must be suitable and designed for the short-circuit
stress at the installation location.
1. First connect the earthing and short-circuiting equipment to
the earthing system and then to the parts to be earthed.
2. If possible, attach the earthing and short-circuiting equipment
so that it is visible from the work location. If this is not pos-
sible, attach it as close to the work location as possible.
Ensuring that the installation is dead
Earthing and short-circuiting
14.09.2022 TracFeed ® SFA Electromechanical remote motor drive 37