Reference table of cable selection for metal melting furnace

Cable ‘s Nominal cross section ( Mm 2 )	Long-term allowable current ( A )
	1000 Hz			2500 Hz			8000 Hz
	roa-fototra	Three core	Four core	roa-fototra	Three core	Four core	roa-fototra	Three core	Four core
25	105	92	–	95	80	–	80	55	–
35	120	105	–	105	90	–	85	70	–
50	140	125	200	115	105	175	95	80	130
70	155	145	240	130	125	195	105	95	155
95	175	170	260	150	145	215	120	110	170
120	200	195	310	165	160	240	130	120	180
150	230	210	325	190	180	265	145	135	200

Note: The ambient temperature is 25 ℃ , and the cable temperature does not exceed 50 ℃ .