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Old 04-29-2011, 01:39 PM
boytyperanma boytyperanma is offline
Join Date: Dec 2005
Location: Leominster MA
Posts: 5,234
Backstabbing is an approved wiring method. Push in connectors are also approved.

Ive never seen fires due to either but occasionally the connections do fail and it requires swapping out the outlet because good contact is no longer made.

When wiring places like homes that may never see an electrician again for years I wire using the the studs on the outlets and wire nuts.

When doing commercial places like stores in malls and such I have no issues backstabbing or using push ins. An electrician is likely to come through regularly to change displays and such and it's five minutes to a service call to fix an outlet that's gone bad.

Overall it's just a cost thing. Using the terminal screws takes more time up front. and for a home owner it's worth paying for that time. The back stabs take less time but you may end up paying for that saved time later.