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The lowest acceptable wire section and the
corresponding maximum cable or conductor length
for multiple core cable or H07 RN-F, at rated current
(20 A), for a voltage drop e lower than 5% and at a
power factor of 0.80, are respectively 2.5 mm² and
144 m. In case electric motors must be started,
oversizing the cable is advisable.
The voltage drop across a cable can be determined as
follows:
e = Voltage drop (V)
I = Rated current (A)
L = Length of conductors (m)
R = Resistance (/km to VDE 0102)
X = Reactance (/km to VDE 0102)
3.3.3 Connecting the load
3.3.3.1 Site distribution panel
If outlet sockets are provided, they must be mounted
on a site distribution panel supplied from the terminal
board of the generator and in compliance with local
regulations for power installations on building sites.
3.3.3.2 Protection
– Check whether frequency, voltage and current
comply with the ratings of the generator.
– Provide a load cable, without excessive length,
and lay it out in a safe way without forming coils.
– Open the door of the control and indicator panel
and the transparent door in front of the terminal
board X1.
– Provide the wire ends with cable lugs suited for
the cable terminals.
– Loosen the cable clamp and push the wire ends of
the load cable through the orifice and clamp.
– Connect the wires to the proper terminals (L1, L2,
L3, N and PE) of X1 and tighten the bolts
securely.
– Tighten the cable clamp.
– Close the transparent door in front of X1.