APPLIANCE WIRING MATERIAL
Subj.758 Section 4 Page 4220 Issued:1970-01-16
Revised:2011-10-14
Style 4220 Ten Conductor SO Style Control Card.

Rating60 deg C, 600 Vac, Horizontal Flame.
ConductorSeven No. 18 AWG and three No. 16 AWG, with No. 30 AWG stranding tinned copper.
InsulationExtruded SBR/NR, 30 mils minimum average thickness, 28 mils minimum at any point.
AssemblyConductors assembled around jute fillers with 6-1/4 in. maximum lay; 3 mil paper take over assembly.
JacketExtruded Neoprene, 80 mils minimum average thickness, 62 mils minimum at any point.
Color CodingNo. 18 conductors: red, blue, orange, white/black, red/black, green/black, and orange/black. No. 16 conductors: green, black, white.
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseFor X-Ray Equipment.

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