CM Example of NEC-4 catenary wire
CE
CM
CW	1	39	-19.64	0.0	20	19.64	0.0	20	0.001	2	19.64	1
GE	0	1
IS	-1	1	0	0	14	.006	.002
VC	0
UM	0	0	0	0	14	.006
'LE	0	10	0	0	0	1	1	1
'LH	0	10	0	0	0	1	1	1
'JN	0
'CP	1	1	2	2
'PS
'NX
GN	2	0	0	0	14	.006
EX	0	0	20	01	1	0
FR	0	1	0	0	3.68
'RP	0	0	20	1512	1	0	0	0
'XQ
EN