dirkhats
Member
- Location
- West Jordan, Utah
Was water pipe bonding required by the NEC prior to 1970?
Water pipe bonding prior to 1970
- Thread starter dirkhats
- Start date
- Status
charlie
Senior Member
- Location
- Indianapolis
Re: Water pipe bonding prior to 1970
Yes, it was the only grounding electrode required at that time.
Yes, it was the only grounding electrode required at that time.
dirkhats
Member
- Location
- West Jordan, Utah
Re: Water pipe bonding prior to 1970
Wwhen did grounding electrodes began to be required? Was it always the water pipe?
Wwhen did grounding electrodes began to be required? Was it always the water pipe?
charlie
Senior Member
- Location
- Indianapolis
Re: Water pipe bonding prior to 1970
The supplemental electrode was required circa 1975. I don't have a clue about when the water pipe grounding connection was required but I believe it was circa 1910. I need help on both of those dates.
The supplemental electrode was required circa 1975. I don't have a clue about when the water pipe grounding connection was required but I believe it was circa 1910. I need help on both of those dates.
mdshunk
Senior Member
- Location
- Right here.
Re: Water pipe bonding prior to 1970
Related to water bonding, I've done a good many service changes in which the GEC was lead soldered to the incoming copper water line. Sometimes it was wrapped around the pipe a few times and soldered, and other times it was soldered straight down the side of the pipe for 3 or 4 inches. Has anyone else observed this old practice? Anyone know around what period in time this practice was in favor? I'd like to see a lightning strike hit one of these connections. I have a feeling it would only last a few milliseconds.
Related to water bonding, I've done a good many service changes in which the GEC was lead soldered to the incoming copper water line. Sometimes it was wrapped around the pipe a few times and soldered, and other times it was soldered straight down the side of the pipe for 3 or 4 inches. Has anyone else observed this old practice? Anyone know around what period in time this practice was in favor? I'd like to see a lightning strike hit one of these connections. I have a feeling it would only last a few milliseconds.
charlie
Senior Member
- Location
- Indianapolis
Re: Water pipe bonding prior to 1970
This reminds me that you can take a paper cup full of water and set it in the coals of a campfire and boil the water. As the water boils out of the cup, the sides will burn away to keep the sides even with the water line. When it has boiled off the water, the bottom will burn.
Soldering went out of favor when knob and tube left us in favor of Type NM cable. We also saw a myriad of wire connectors that replaced the solder pot and soldering copper.
That is a long time for a lightning stroke. Don't forget that the line has water in it to keep the temperature down.
This reminds me that you can take a paper cup full of water and set it in the coals of a campfire and boil the water. As the water boils out of the cup, the sides will burn away to keep the sides even with the water line. When it has boiled off the water, the bottom will burn.
Soldering went out of favor when knob and tube left us in favor of Type NM cable. We also saw a myriad of wire connectors that replaced the solder pot and soldering copper.
- Status