Without it being a code requirement, wire nuts would still be 'best practice'. But there are a lot of them out there, and eventually Murphy will pick one to bless.Ĭodes are a lot about fixing things that might happen. Mostly the nutless connection would perform OK. The current carrying wires would be more prone to failures of simple twist connections because of thermal cycling and possibly small arcs or heated areas as the interfering film develops. The plant itself has pinnate compound leaves with five to seven leaflets. The outside of growing groundnuts are brown while their interior, once peeled, is firm and white. They may be tiny, the size of a pine nut, to as big as an avocado. All the current carrying wires will have nuts to 'insulate' the wires and they will be fine. Groundnuts, Apios americana, get their name from the bulb-like tubers that grow from the root system. Since the ground only carries appreciable current when something goes wrong, you are unlikely to notice any problem developing over years. Wire nuts are plenty safe if installed correctly. Shop Greenie Grounding Wire Connector, Green, 100 Pack By Ideal Industries (30-092) At Graybar, Your Trusted Resource For Twist-On Terminals And Other. The heat creates a potential fire hazard. If you have a loose wire nut then you will have loose wires. 12 AWG Solid Grounding Pigtail with Screw, Green (50-Pack) IDEAL. So it fails to deliver on your fundamental objective. Subscription Eligible Subscription Eligible In Stock at Store Today IDEAL. Over time, wire without a nut can develop surface oxidation that can degrade the connection. Taping the wire nut will do nothing to make it more fireproof or safer. When you twist wire together (say with pliers) you do not have conditions that will necessarily create a gas tight contact.

We dont have the 'first wire entering the box' rule, but all metal boxes MUST be grounded, and we MUST use some sort of mechanical connection for the grounds.

When you put on a wire nut it essentially creates multiple gas tight electrical connections from the pressure, small contact area size, and rigidity of the inner wire cone pressing into the softer copper. We must also secure the twisted ground wires with wire nuts or crimps. My thought on why you should use wire nuts (not arguing with code). 30-092 600 V, 14 to 10 AWG, Copper/Copper Wire, Green, Copolymer, Contoured Wing, Grounding Wire Connector (100-Box).

Ground wire nuts