Lenovo Recalls LS-15 Power Cords
jones_supa writes US Consumer Product Safety Commission reports that Lenovo is recalling a batch of laptop AC power cords due to fire hazard. The power cords have been bundled with IdeaPad brand B-, G-, S-, U-, V- and Z-series laptop computers and Lenovo brand B-, G- and V-series laptop computers. The recalled power cords are black in color and have the "LS-15" molded mark on the base of the IEC 60320 connector. The company seems to have been bitten by the exact same problem that HP faced this summer. Lenovo has set up an info page for affected customers.
I confess to being a bit baffled at how these power cord defects keep happening. Your basic AC power cord is ancient by the standards of electronic gizmos and by far the simplest thing going into a modern laptop. Does that simplicity attract a tendency to live dangerously with the low bidder? Is strain relief just ugly enough that people who don't know better keep trying to cut it out of the design?
Sounds like you got burned...
While there's a number of different plugs, all this stuff is modular today. Since the cables need to be rated from 100V-240V(plus safety margin) for a constant wattage draw due to universal power supplies, they can use the same cable for all of them.
Then you just contract for the appropriate number of plugs for the various standards, of the appropriate amperage capacity, all with the same wire-side interface.
You screw that interface up, and it's the most logical spot, you're going to screw a lot of cables for a lot of different companies up.
I don't read AC A human right
Well that explains a lot, a few months ago I discovered that my laptop had started to trip the mains when i took it into the office which had a more modern fuse box than at home. Figured out through trial and error that it was the cable from the wall to the psu, and application of a multimeter showed a measurably small resistance between live and earth when the cable was disconnected. I put it down to wear and tear, chucked it away and bought a replacement. Sounds like i was lucky to spot it early before it caused a fire, as that cable was usually left plugged in at home.