what earthing arrangement applies to a portable generator, is it a TT or TNS ?

Answer 1

TNS
the generator should have a connection to earth via an earth rod.
and a seperate earth conductor to the equipment it is supplying. 3 wires

(if it is a tool generator for drills etc which tend to be double insulated then it is still tns)

if a generator is connected to an electrical installation then the Live neutral and earth incomming connections should be removed to prevent backfeeding.

definitely not tt as tt has an earth rod at the generator and an earth rod at the point of use. relies on the general mass of earth (soil) to provide earth reference. 2 wires

Answer 2

If the generator relies on an earth rod only and the load has another earth rod then it is TT, but for safety
always connect it TNS, that is connect a seperate earth wire back to the generator frame.

Answer 3

the authentic question is why do we fall, because of the reality that issues do not pass different than they have despite to push or pull them. What pulls us, the earth, and the full component else are magnetic fields that are extra helpful the bigger an merchandise is and the shorter the hollow like a super-unfold magnet. we are pulled to the earth thinking the earth is vast, and the earth is pulled for the time of the solar once you think approximately that that is plenty greater whether it is likewise pulled, yet much less, to the moon too, and the coolest deal else relative to the hollow and measurement, to orbit around the solar.