really?
the actual way to do it is have to connect the wire all the way from the box there right?

scratch the bare metal wire and see what is underneath the copper color

most of the time, experienced electrician will know just by checking the weight. copper is quite dense, if compared to alumnium

why?? if extension sendiri using wire for the wall socket also can't exceed 4 plugs?

Q3    How many tap-off units are allowed on the track at any one time to tap power from the track?
A3    The number of tap-off units is dependent on the total load current consumed at that point of time rather than the absolute number of tap-off units connected. Maximum load current available on the system is subjected to the rating of the MCB at the Distribution Board supplying to the final sub-circuit. In practice, the track can accommodate up to 12x adaptors or 18x plugs per metre run. Ratio of adaptor to plug is 2:3.