Is cable marked 14CU 2 CDRS NMD90 two wire or three wire?
The most common type of cable used in houses is technically known as NMD 90 (Non-Metallic Dry service cable rated at maximum of 90 degrees Celsius). It is usually a plastic white covered cable. This cable comes with two or more conductors and includes a ground wire (bare wire).
Your cable has 2 conductors and a ground.