In article ,
Mark Lloyd wrote:

The WIRE in those light strings can't handle the 30A that would be
flowing in the first of the 20 connected strings.

True. However, the wire (probably 16 AWG) CAN handle 15 amps, beyond which
would open the overcurrent protection device found on most outdoor electrical
circuits.

BTW, I have one string that is fuseless. I never use that string
first. It's always protected by the fuses in the string it's connected
to.

You like the belt and suspenders approach to safety (overkill), I prefer the
convenience of a SINGLE overcurrent protection device on a circuit. Those
fuse-in-plug sets are, for that reason alone, the biggest pain in the @$$ ever
dreamed-up by Big Brother to protect stupid people from themselves.

Better safe than sorry? Fine. Don't use the lights AT ALL and the safety
factor rises even higher.
--

JR