Refer to the table below for the cables and possible configurations.
PE (ground)NegativePositiveCable type
Shield
1)
1 conductor1 conductor2-conductor shielded cable
1 conductor + shield1 conductor1 conductor3-conductor shielded cable
Shield
1)
2 conductors2 conductors4-conductor shielded cable
1)
The shield must meet the requirements of IEC 61439-1. If the shield does not meet the requirements, an additional
PE conductor or cable is required.
ABB does not recommend to use single core cables. If it necessary to use single core
cables, obey these guidelines:
• Use shielded cables. Ground the cable shields only at one end.
• Put the cables in groups of 2 or 4.
• Attach the cables according to the requirements to withstand the apparent short
circuit forces.
￭
Typical cable sizes
See the technical data.
￭
Minimizing electromagnetic interference
The customer (or the system integrator) must obey these rules in order to minimize
the electromagnetic interference caused by rapid current changes in the energy storage
cables:
• Shield the energy storage cabling completely, either by using shielded cable or a
metallic enclosure. Unshielded single-core cable can only be used if it is routed
inside a cabinet that efficiently suppresses radiated emissions.
• Install the cables away from other cable routes.
• Avoid long parallel runs with other cables. The minimum recommended separation
distance for parallel cabling is 0.3 m (1 ft).
• Cross other cables at right angles.
Keep the cable as short as possible in order to minimize the radiated emissions and
stress on converter IGBT semiconductors. The longer the cable, the higher the radiated
emissions, inductive load and voltage peaks over the IGBTs of the DC/DC converter.
￭
Maximum cable length
Refer to the technical data.
￭
EMC compliance of the complete installation
ABB has not verified that the EMC requirements are fulfilled with external energy
storage and its cabling. The EMC compliance of the complete installation must be
considered by the customer (or the system integrator).
Guidelines for planning electrical installation 47
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