Delta Modulon DPH Series User Manual page 59

Step 8
Follow the table below to select proper Protective Earth (PE) cables to ground the UPS,
external battery cabinet(s) and connected critical loads. The table is in accordance
with IEC 60364-5-54
reference.
UPS Capacity
Suggested
PE Cable
Size
Maximum Cable Lug Width
Screw Size
Tightening Torque
(Figure 5-11: Single Unit Single Input Wiring Diagram)
(Article 543
and
Input
Bypass
Output
Battery
Table 54.2)
. The grounding diagram below is for
200kVA/ 200kW
70 mm × 1 PC (3/0 AWG × 1 PC)
2
70 mm × 1 PC (3/0 AWG × 1 PC)
2
70 mm × 1 PC (3/0 AWG × 1 PC)
2
95 mm × 1 PC (4/0AWG× 1 PC)
2
30 mm (1.18")
M10 = 250 ± 10 kgf-cm (217 ± 8.7 lb-in)
M10
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