Csail
N/A
On chargers (12v) which wire is positive? One is black,other is black with a white line.
Charger wire colours
- Thread starter Csail
- Start date
sailorman
Well-known member
plug it in the mains & use a multi meter across the black / black-white stripe
Csail
N/A
Ok, just tried that and it just says 12v either way. My multi meter is a Megger test mft1502/2.
oldharry
Well-known member
It should indicate 12v one way then -12v the other. If yours doesnt get hold of a cheapo DVM - they all do. When it reads 12v then Pos corresponds to the meter leads. Assuming its DC of course.
FullCircle
Well-known member
The white line indicates the positive, the solid black negative. Its just a cheap way of producing the cable.
earlybird
Well-known member
Yes, B/W is almost certainly +ve. If you want to confirm, dip the live output wires in a jam-jar of salt water. A stream of bubbles will form on the negative.
cimo
Member
only ever came across this once before - my (first) stereo speaker cables. but the black/white was the negative in that instance. Would be intersted to know your result CSail.
Bilgediver
Well-known member
I would double check as if based on American philosophy then
Black is live!!!! But then Neutral should be white!
http://www.epanorama.net/documents/wiring/mains_cable_colors.html
Monique
Active member
SAMYL
Well-known member
Stick the ends into a piece of cut potatoe, the area around one wire will go black - but I can't remember which one so not much use I'm afraid.
No doubt somebody will know.
No doubt somebody will know.
