when wiring and electrical switch, does the ground wire coming from the electrical box need to be grounded?
Answers:
Before you snip it make sure that you have metal conduit for you wiring and not romex. If you have romex your disposal will not be grounded for your protection. This is an appliance that's around water and you do not want anything to go wrong, and if something goes wrong you want to be protected by that ground wire. So just double check that your house is piped with metal conduit and go ahead and tape off the wire.
Other answers:
Just snip it at the very bottom.
Just snip it at the very bottom.
Just take black electrical tape and tape it out of your way but, it won't hurt anything. I wouldn't worry as long as the garbage disposal works.
Should be a green wire coming from the disposal also, if so connect them together- // best you talk with someone locally who knows the answer to this.
I would stick it on the switch plate anyway.
The ground wire is there for safety. I WOULD NOT just snip it off- especially on an appliance that's around water. Find the gounnd on the disposal and hook it up to that, or ground it to the box. Ideally you should be using a GFCI outlet too.
The black wire is hot. The white is neutral. The green or bare wire is ground.
You should only "switch" the hot leg. You do not switch neutral or ground. Ever.
You should have 3 connections on the switch. 1 for power coming into the switch. 1 for power going out of the switch to the appliance and 1 lug towards the bottom of the switch for the ground wire. The white wire doesn't go to the light switch. It should have a wire nut connecting it to the supply neutral.
Mike
If you are talking about a reg. switch that you put on the wall to control it then you need to buy a new switch,all new single pole switches have a ground terminal.If it is on the disposal than there should be a ground lug somewhere to hook it,but do not disregard it put it somewhere for your on safety.
connect it to the ground wire from the garbage disposal if it has one. if not, then just clip it.
Find a place to stick it