A properly installed wire nut is a very good connection. It's like wire wrap.
Light-up outlet testers have gotten dirt cheap. Circuit tracers with that functionality built in can be had for the price the testers youstaby.
There's nothing inherently unsafe about using a neon bulb to test for voltage. They do not give false readings like voltage detectors typically do. Of course, neon bulbs don't pass for class IV. Voltage testers shine for testing insulated conductors. They are really handy for locating breaks in cables.
When tightening aluminum (or any stranded), NEC 2017 requires the use of torque wrenches, and it's about time. Much better in that case to crimp and never worry about it.
Light-up outlet testers have gotten dirt cheap. Circuit tracers with that functionality built in can be had for the price the testers youstaby.
There's nothing inherently unsafe about using a neon bulb to test for voltage. They do not give false readings like voltage detectors typically do. Of course, neon bulbs don't pass for class IV. Voltage testers shine for testing insulated conductors. They are really handy for locating breaks in cables.
When tightening aluminum (or any stranded), NEC 2017 requires the use of torque wrenches, and it's about time. Much better in that case to crimp and never worry about it.