That could actually be safer if it trips the breaker. I have a thermal camera and part of my home inspection process is to look for warm outlets and switches. I have caught loose wiring in both an old and virtually a new home that way.Lots of Electricians will tape around the the screws, even though it is not required, especially with a metal box. Some metal boxes don't have much side clearance, so if the receptacle mounting screws loosen up, the receptacle wire connecting screws can ground out on the side of the box.
I think this is what he is talking about with respect to high vs low voltage. Not standards.What catagory a voltage is in is different depending on what country you are in.
Historically in the USA these have been the volage catagory definition.
ELV - 50V or less (now divided into Class 1 and 2)
MV 601V-69,000V ( Changed a few years ago)
HV - 69,001V-230,000V
ANSI Standards are different and the big change that is making its way into USA regulation is the division at 1000V.
That's possible, but it doesn't negate the fact that lots of Electricians will tape switches and receptacles like that. Not all will do it, but most of the people I have worked with, I would say the majority do it. Mostly Industrial/Commercial Electricians.That could actually be safer if it trips the breaker. I have a thermal camera and part of my home inspection process is to look for warm outlets and switches. I have caught loose wiring in both an old and virtually a new home that way.
I did not know that.That's possible, but it doesn't negate the fact that lots of Electricians will tape switches and receptacles like that. Not all will do it, but most of the people I have worked with, I would say the majority do it. Mostly Industrial/Commercial Electricians.
I bought a house in Columbus OH with a wall clock hanging on the wall in the kitchen. An AC powered wall clock, the zip cord was dropped down into the cavity and wire nutted to AC wiring.I am pretty sure when the house was built they did not have this outlet hooked into GFI -
I found a few other cases where the prior owner had done things with the electrical system that were dumb and dangerous.
The one that sticks out is they replaced all the 15 amp breakers with 20 amp breakers -
So they had 20 amp breakers installed on the circuits that were using 14-gauge wire. I fixed that before they even moved in.
Plus he added a light fixture in the game room by splicing off another light - but didn't install a box - the connections with wire nuts were just laying on the sheetrock in the attic.
Double insulated devices don't require a specific orientation to the power plug. Both blades are narrow so you can plug it in either way.Sorry but I can't resist --
Why can you plug in - for example a phone charger - with the prongs any which way - and it still charges the phone?
I mean the hot side of the outlet can go to either of the prongs and it doesn't matter.
It is stuff like this that messes with my brain.
Yes, I really wouldn't expect to see it in residential applications. Those guys most likely wouldn't spend the time to do it.I did not know that.
I have never seen it any of the houses I owned nor in industrial installations.