Old Metal Box No Ground Screw. This doesn't turn an ungrounded outlet into a grounded outlet, but it does provide protection against shock. Quite a few light fixtures. the passage (1962 nec 250.114) governing bonding at metal boxes was rewritten to describe ground screw. the easiest way to upgrade an ungrounded 120v receptacle to get ground protection is to replace it with a gfci outlet. At one point, something might happen to the wires in your system and the hot current will. a metal electrical box that is not grounded is a safety and health hazard. my old house has metal boxes with no grounds attached. If there's no threaded hole for a ground screw, a clip is. They are only grounded when you screw the outlet or switch in and have the ground wire. after opening the outlet up, it appears that the metal box has no grounding screw and the existing grounding wires. there are two simple ways to connect a ground screw to the box, a screw or a grounding clip. if new fixture has a ground wire, then just connect grounds together with wire nuts/wagos, plus to the screw in the box.
from www.jade1.com
my old house has metal boxes with no grounds attached. Quite a few light fixtures. At one point, something might happen to the wires in your system and the hot current will. the easiest way to upgrade an ungrounded 120v receptacle to get ground protection is to replace it with a gfci outlet. if new fixture has a ground wire, then just connect grounds together with wire nuts/wagos, plus to the screw in the box. the passage (1962 nec 250.114) governing bonding at metal boxes was rewritten to describe ground screw. after opening the outlet up, it appears that the metal box has no grounding screw and the existing grounding wires. If there's no threaded hole for a ground screw, a clip is. there are two simple ways to connect a ground screw to the box, a screw or a grounding clip. This doesn't turn an ungrounded outlet into a grounded outlet, but it does provide protection against shock.
250.148(C) Continuity and Attachment of Equipment Grounding Conductors
Old Metal Box No Ground Screw a metal electrical box that is not grounded is a safety and health hazard. If there's no threaded hole for a ground screw, a clip is. my old house has metal boxes with no grounds attached. Quite a few light fixtures. This doesn't turn an ungrounded outlet into a grounded outlet, but it does provide protection against shock. after opening the outlet up, it appears that the metal box has no grounding screw and the existing grounding wires. At one point, something might happen to the wires in your system and the hot current will. the easiest way to upgrade an ungrounded 120v receptacle to get ground protection is to replace it with a gfci outlet. They are only grounded when you screw the outlet or switch in and have the ground wire. if new fixture has a ground wire, then just connect grounds together with wire nuts/wagos, plus to the screw in the box. the passage (1962 nec 250.114) governing bonding at metal boxes was rewritten to describe ground screw. a metal electrical box that is not grounded is a safety and health hazard. there are two simple ways to connect a ground screw to the box, a screw or a grounding clip.
