Two types, internal side dimensions ¼ in to 6 in with wall thicknesses 1/32 in to ⅛ in. For power circuits with d.c. and with a.c. frequencies up to 100 Hz. Electrical and mechanical properties, tolerances on dimensions, test methods.
BS 1885:1952
Original price was: $264.16.$132.00Current price is: $132.00.
Specification. Synthetic-resin bonded-paper insulating tubes (rectangular cross-section) for electrical power circuits up to 1000 volts
BSI Group , 07/18/1952
