conductor must be determined in a manner which produces a conductance
equivalent to that which results from the application of this table.
Minimum cross-sectional area of the corres-
ponding protective earth conductor
Sp (mm2)
Cross-sectional area of the phase conduct-
ors
S (mm2)
S
1)
S ≤ 16
16
16 < S ≤ 35
S/2
35 < S
1) For the minimum conductor size in IEC installations, refer to
Additional grounding requirements – IEC
If the protective earth conductor is not part of the input power cable or input
power cable enclosure, the minimum permitted cross-sectional area is:
•
2.5 mm
2
if the conductor is mechanically protected,
or
•
4 mm
2
if the conductor is not mechanically protected. If the equipment is
cord-connected, the protective earth conductor must be the last conductor
to be interrupted if there is a failure in the strain relief mechanism.
■
Additional grounding requirements – IEC
This section gives grounding requirements according to standard IEC/EN 61800-5-1.
Because the normal touch current of the drive is more than 3.5 mA AC or 10 mA DC:
•
the minimum size of the protective earth conductor must comply with the
local safety regulations for high protective earth conductor current equipment,
and
•
you must use one of these connection methods:
1.
a fixed connection and:
•
a protective earth conductor with a minimum cross-sectional area of
10 mm
2
Cu or 16 mm
2
Al (as an alternative when aluminum cables are
permitted),
or
•
a second protective earth conductor of the same cross-sectional area
as the original protective earth conductor,
or
•
a device that automatically disconnects the supply if the protective
earth conductor is damaged.
2.
a connection with an industrial connector according to IEC 60309 and a
minimum protective earth conductor cross-section of 2.5 mm
2
as part of
a multi-conductor power cable. Sufficient strain relief must be provided.
Guidelines for planning the electrical installation 73
Summary of Contents for ACH580-31
Page 1: ... ABB INDUSTRIAL DRIVES ACH580 31 drives Hardware manual ...
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Page 39: ...Operation principle 39 ...
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Page 112: ...R3 1 7 N m 112 Electrical installation IEC ...
Page 113: ...R6 1 7 N m Electrical installation IEC 113 ...
Page 114: ...R8 1 7 N m 114 Electrical installation IEC ...
Page 130: ...R3 Max 250 mA 130 Electrical installation North America NEC ...
Page 131: ...R6 Electrical installation North America NEC 131 ...
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Page 166: ... Fan arrow must point up 166 Maintenance ...
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Page 214: ...R3 IP21 UL Type 1 3AXD50000028643 214 Dimension drawings ...
Page 215: ...R3 Option B056 IP55 UL Type 12 3AXD50000045321 Dimension drawings 215 ...
Page 216: ...R6 IP21 UL Type 1 3AXD50000037446 216 Dimension drawings ...
Page 217: ...R6 Option B056 IP55 UL Type 12 3AXD50000045351 Dimension drawings 217 ...
Page 218: ...R8 IP21 UL Type 1 3AXD50000147052 218 Dimension drawings ...
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Page 275: ...CMOD 01 multifunction extension module external 24 V AC DC and digital I O 275 ...
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Page 282: ...282 CMOD 02 multifunction extension module external 24 V AC DC and isolated PTC interface ...