Back before they relaxed the distance rule for the general use receptacles the thought was that if the pump used a twist lock you couldn't plug in a cube tap and a radio along with the pump. They didn't want you sitting in the pool and fooling with an old hot chassis radio.
The problem was they also had language saying if you couldn't maintain 10' to the general use receptacle it could be as close as 5'. Somebody said if this was really a safety issue, why have exceptions? It bounced around the sausage factory and came out in this contradictory form. The panel does not want to fix this
17-111 Log #2334 NEC-P17 Final Action: Reject
...
Panel Statement: Sanitation equipment receptacles located between 6 ft and
10 ft is a reduction of safety without the additional four requirements.
Receptacles for pool pump motors may be of a higher voltage than 125 V
and therefore may present a higher danger than 125 volt circuits.
The submitter has not provided adequate technical substantiation.
I guess they don't understand it is all 120v to ground.
