Eaton Rapid Link 5, Руководство пользователя, Страница: 49 / 249

2 Engineering
2.5 Safety and protection
Rapid Link 5 · RAMO5 · RASP5 05/20 MN034004EN www.eaton.com
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2.5 Safety and protection
2.5.1 Fuses and cable cross-sections
The fuses allocated for power-side connections and wire cross-sections
depend on the rated mains current of the Rapid Link 5 power bus.
The national and regional standards (for example VDE 0113, EN 60204) must
be observed and the necessary approvals at the site of installation
(for example UL) must be fulfilled.
When the device is operated in a UL-approved system, use only UL-approved
fuses, fuse bases and cables.
The leakage currents to ground (in line with EN 50178) are greater than
3.5 mA. The connection terminals marked PE and the enclosure must be
connected to the earth-current circuit.
The cross-sections of the cables to be used and the line-protection
fuses must be selected in accordance with local standards.
UL-approved fuses and approved copper cable that are heat-resistant to
+60/75 °C must be used for installation in line with UL regulations.
For a permanent installation with insulation, use power cables that are suita-
ble for the specified mains voltages.
RASP5 requires a fully (360°) low-impedance screened cable on the motor
side. The length of the motor cable depends on the RFI class and must not
exceed 20 m for RASP5.
ATTENTION
When selecting the cable cross-section, take into account the
voltage drop under load.
The user is responsible for taking other applicable standards
(e.g. VDE 0113 or VDE 0289) into account.
ATTENTION
The specified minimum PE conductor cross-sections (EN 50178,
VDE 0160) must be maintained.
￫
Choose the cross-section of the PE conductor in the motor lines
at least as large as the cross-section of the phase lines (U, V, W).