Cable rating calculator for ships

[mm2]  Current ratings [A]

Ambient temperature:
35 °C, yachts and boats
45 °C, engine room, galleys and laundries
40 °C
50 °C
55 °C
60 °C
65 °C
70 °C
75 °C
80 °C
85 °C

Type of service:
S1 – continuous
S2 – half-hour service
S2 – hour service
S3 – intermittent service 40%
Overall diameter of the cable [mm], assumed: [mm]

Maximum permissible temperature of the conductor, °C (Insulating material):
60 °C, General purpose Polyvinyl chloride, (PVC)
70 °C, Heat resisting Polyvinyl chloride, (PVC)
85 °C, Butyl rubber
90 °C, Ethylene propylene rubber, (EPR, XLPE, HEPR, HF EPR, HF HEPR, HF XLPE, HF 90)
95 °C, Silicone rubber and mineral insulation, (S95, HF S95)

Group of cables:
over 6
to 6

Cores in a cable:
one core
two cores
three- and four-core cables

Author: Daniel Czarkowski