Suspected a wiring problem at a friends house where her computer and
monitor fed via a UPS is connected. The UPS sounds it's alarm
sometimes when there is no apparent reason. The outlet in question has
120v no load and 110v with a 1500 watt load. At my house voltage only
drops from 120v to 115 volt under the same 1500 watt load. Just
wondering if this much voltage drop (10v @ 1500 watts) is excessive and
does it warrant further investigation of the friends wiring? I only
tested the one outlet at the computer so plan to go back and check some
others.