I gave "super" jumper cables to a couple of my plumber friends for Christmas.
(Cheap guy that I am, 1 set was good for 2 plumbers).
They often cut waterlines in older homes (with bonds that were installed before the 5' rule, [we used to bond them to the CW in the water heater closet] and old services were only bonded to cold water) in order to install T fittings or make repairs.
When they're under a house (older homes are of a raised wood floor design, with no basement) drenched in water, I just feel better knowing that they won't become a statistic if the house has a bad neutral.
The 5' rule increases their safety too...S



[This message has been edited by electure (edited 03-20-2004).]