SDMO R33C3, User And Maintenance Manual

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3. Check the length of the earthing rod depending on the
nature of the ground and adapt if necessary.
The equipment supplied is not suitable for
bare stony soils, dry sand or impermeable
rock.
IMPORTANT
Nature of ground
Length of earthing
rod (in metres)
Thick arable land, damp
compact backfill
1
Thin arable land, gravel, rough
backfill
1
Bare stony soils, dry sand,
impermeable rock
4 or 4 x 1
4. Plant the earthing rod in the ground and connect it to the
earth cable.
Note: For the United States (National Electrical Code ref. NFPA-70), use a copper wire with a minimum cross-section of 13.3 mm² (or
AWG 6 at most) connected to the generating set's earth connection and a galvanised steel earthing rod completely buried in the ground
in an upright position. This earthing rod must be at least 2.5 m long (of which at least 1 m must be in the ground).
4.2.3 Making the connections
4.2.3.1.
Connections - general information
When connecting, always comply with standard NFC 15-100 and the application guide NFC 15-401 (in France) or follow standards
based on the international standard IEC 60364 (countries outside France).
The cable cross-section and number of connection cables should be determined according to the type of connection cable and the
current standards to be observed in the country of installation. The choice of connection cables must comply with international standard
IEC 60364-5-52.
1 meter
ground
Earth cable
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