In other words the insulation is clear.
Blue and white speaker wire which is positive.
It is easy to check the bare wire colors and material or even markings.
Positive speaker wires have a positive symbol or a negative symbol to indicate the corresponding connector on the wires.
The negative wire will usually be copper in color for this same instance.
This can help you make out easily which speaker wire is positive or which one is negative.
The most common color coding used in wires are copper and silver.
When you re hanging a chandelier or any other ceiling light first find the 3 wires coming out of the hole in the ceiling where the light will go.
The left because we do many things from left to right.
Identify the black positive wire on a ceiling light fixture.
A common color code that is used is black for negative and red for positive.
If your wire has light colored insulation this stripe or dash may be dark.
Every speaker wire will have an indicator to tell them apart such as color.
Typically the positive wire is red and the ground or negative is black.
In dealing with speaker wires the positive speaker wire will be silver in color.
This leaves the green and white or yellow conductors for the right speaker.
This is only visible if the insulation is clear or see through so that color can be distinguished.
If a speaker wire doesn t have a two tone color scheme look for a single stripe or dashed lines these usually indicate the positive end along one of the sides.
Since two conductor speaker wire usually has a black and red conductor and the black is designated negative with the red being positive we use those two conductors for the first speaker.
When this is the case usually the silver wire will be the positive polarity and the copper wire will be negative.
If the insulation is a dark color the stripe or dash is more likely to be white.
However most speaker wires don t do colors.
Some terminals are also color coded.
In some high end speaker wires the insulation is transparent or see through enough to see the bare wires.