AFAIK,Your power extension is intended for a 3-wire earthed DC Power System.
The 'black' is actually 'grey' for which case;
BROWN = Positive
BLUE = Ground
'BLACK' = Negative
If u r using it on the kawaida power (AC),don't take it at face value,Open huko mwiso & judge which cable connects to which point when in working position. Else tafuta mjuaji.
http://www.allaboutcircu...com/vol_5/chpt_2/2.html
I came,I saw and was overcharged.
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