NMD90 cables are available as two- or three-conductor cables, with bare grounding conductor. The construction is manufactured using annealed (soft) copper conductors compressed stranding for the stranded conductors; a 90 °C rated thermoplastic polyvinyl chloride (PVC) insulation and a nylon jacket for the individual conductors and a PVC jacket surrounding the overall construction. NMD90 cables may be used for both exposed work in dry locations or concealed work in dry or damp locations. The maximum allowable conductor temperature is 90 °C. The minimum recommended installation temperature is minus 25 °C for two-conductor cables and minus 10 °C for three-conductor cables (with suitable handling procedures).