Beckhoff AMP8000, Руководство по эксплуатации

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Electrical installation
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Version: 1.1 AMP8000 and AMP8500
Installation with protective conductor connection
When installing electrical systems and components, the protective
conductors must be connected first. They must be disconnected
last when uninstalling.
Depending on the magnitude of the leakage currents, observe the
following regulations for the implementation of the protective con-
ductor connection:
• Minimum requirement for protective conductor: KU value of 4.5
• The minimum requirement for leakage currents: I
L
< 10 mA; KU
= 6 for I
L
> 10 mA
Value Explanation
KU Variable for the classification of safety-related types of
failure for protection against dangerous shock current
and excessive heating
KU = 4.5 Achieved in relation to interruption:
With permanently connected protective conductor con-
nection
≥ 1.5 mm
2
With protective conductor connections ≥ 2.5 mm
2
via
connector for industrial plants according to IEC 60309-2
KU = 6 Achieved in relation to interruption:
With permanently connected conductors ≥ 10 mm
2
; the
type of connection and routing must comply with the
standards applicable to PE conductors