By CSA on 24 January, 2013 - 7:35 pm. Triad cable is three wires (conductors; cores) that are twisted and shielded, usually in a plastic cover/jacket. A triad would only provide you with three wires/conductors/cores, and a properly-applied 4-wire RTD requires 4 (four) wires/conductors/cores. You could use two (2) two-wire (conductors; cores) twisted, shielded pair cables for a total of four wires/conductors/cores--which is what should be used for a 4-wire RTD.
The solution for crusty scalp is to purify the root and scalp and help to ph balance the skin on the scalp. This allows the natural zinc barrier in the scalp to act as it should to ward off any bacteria.
1 Make a paste with baking soda and water and apply it directly onto your scalp. For best results, rub some olive oil on your scalp before applying the baking soda paste.  Allow it to soak into your scalp for 10 to 15 minutes and then rinse well with water.