a) The PWB is not provided with lands for the jumper wires for repairing at the fuse break, and an instruction is given in the service manual to ban the repairing.
b) No ignition occurs during the double voltage test, and the amount of generated smoke is equal to one lit cigarette or less.
c) The fusing characteristics of pattern fuses are the same as those of regular current-limiting fuses.
d) Fusing characteristics including its dispersion at the production are ensured whenever a PWB unit is designed.
e) Division standards relating to the fusing time-current characteristics of pattern fuses are established and applied.