0.0084 inch or 0.21 mm dia
0.0092 inch or 0.23 mm dia
0.0100 inch or 0.25 mm dia
0.0076 inch or 0.19 mm dia
should be tight in the notch
should be loose in the notch
should be neither loose nor tight
may be either loose or tight
440 V / 11000 V
650 V / 1100 V
1100 V / 11000 V
11000 V / 132000 V
Paper insulated lead covered
Paper insulated lead core
Polythene insulated lead core
Polyvinyl insulated lead core
more flexible
more area of cross section
more resistance
more weight