Electrical Design
‑51‑
3.1.4 Cable Selection for Main Circuit
Power Cable Selection Requirements
For the selection of power cables, follow the requirements specified by local countries
or regions. The requirements for EC cable selection are as follows:
● Comply with EN 60204‑1 and IEC 60364‑5‑52. To meet UL requirements, use 75℃
copper wire that meets UL cable requirements.
● Use PVC copper wires.
● 40℃ ambient temperature and 70℃ cable surface temperature are required.
(Note: Contact the manufacturer when the ambient temperature exceeds 40℃.)
Note
If the recommended cables for peripheral equipment or options are not suitable for the
product, contact the agent or Inovance.
The shielded cable must be used to satisfy the EMC requirements. Shielded cables are
classified into the three‑conductor cable and four‑conductor cable, as shown in the
following figure. If the conductivity of three‑core cable shield is not sufficient, add an
independent PE cable or use a four‑conductor cable, of which one phase conductor is
PE cable. To suppress radio frequency interference effectively, use coaxial copper
braid as the shielding layer of cable. The braided density of cooper braid should be
greater than 90% to enhance the shielding efficiency and conductivity.
Figure 3‑4 Recommended power cable types
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