Posted on 03/18/2013 5:59:33 AM PDT by thackney
On May 28, 1937, the State Board of Registration for Professional Engineers was created by the 45th Legislature. This occurred in the aftermath of the tragic New London School explosion which took the lives of over 300 students and teachers at the New London School in New London, Texas.
http://engineers.texas.gov/anniversary.htm
Community residents and roughnecks from the East Texas oilfield responded immediately with heavy-duty equipment. Within an hour Governor James Allred had sent the Texas Rangers and highway patrol to aid the victims. Doctors and medical supplies came from Baylor Hospital and Scottish Rite Hospital for Crippled Children in Dallas and from Nacogdoches, Wichita Falls, and the United States Army Air Corps at Barksdale Field in Shreveport, Louisiana. They were assisted by deputy sheriffs from Overton, Henderson, and Kilgore, by the Boy Scouts, the American Legion, the American Red Cross, the Salvation Army, and volunteers from the Humble Oil Company, Gulf Pipe Line, Sinclair, and the International-Great Northern Railroad. Workers began digging through the rubble looking for victims. Floodlights were set up, and the rescue operation continued through the night as rain fell.
Within seventeen hours all victims and debris had been taken from the site. Mother Francis Hospital in Tyler canceled its elaborate dedication ceremonies to take care of the injured. The Texas Funeral Directors sent twenty-five embalmers. Of the 500 students and forty teachers in the building, approximately 298 died. Some rescuers, students, and teachers needed psychiatric attention, and only about 130 students escaped serious injury.
In response to this tragedy, the 45th Legislature created the Board to regulate engineering. The Legislative intent, as specified in Section 1.1 of the Act, states in part, “ . . . in order to protect the public health, safety and welfare, that the privilege of practicing engineering be entrusted only to those persons duly licensed and practicing under the provisions of this Act and that there be strict compliance with and enforcement of all the provisions of this Act.”
In 1997, the 75th Legislature changed the name of the agency to the Texas Board of Professional Engineers. All language pertaining to “registration” and “registered” was changed to “licensure” and “licensed.”
I once replaced a house gas line that was all beautiful L copper 1" and 1&1/4", it was gorgeous but was full of flaky black debris inside. I knew that we had replaced copper supply lines (the flex lines at the appliance itself) which had been the normal supply line material in the distant past, but had never seen an entire copper gas line.
The best that I could figure was that perhaps copper was OK before the malodorants were added to natural gas and that it was the malodorants which caused corrosion, on the other hand, it doesn't seem smart to use soldered copper that looks just like water pipe for NG anyway.
Does anyone know the official answer for why we got away from copper for natural gas?
***School officials saw nothing wrong because the use of “green” or “wet” gas was a frequent money-saving practice for homes,***
Gas drilling camps often use this in the remote drilling areas of the west.
Our house in one of these camps blew up, burning my mom back in 1956. It was caused by a leaking underground gas line. It missed me by about 1/2 second. our lives were never the same after that.
Another disaster near where my dad was born...
http://en.wikipedia.org/wiki/Babbs_Switch_fire
***Does anyone know the official answer for why we got away from copper for natural gas? ****
Some states do not allow galvanized iron pipe to be used as the zinc reacts with the gas. Black iron is OK.
California requires galvanized pipe for outside while black can be used indoors, and New Mexico seems to require black pipe.
When the gas company ran a line to my NM house in 1974, they used black pipe covered with a tar-asphalt and a paper outer coating.
Copper Tubing Installations for Natural Gas
http://www.copper.org/applications/fuelgas/pdf/Official_Copper.pdf
That sounds like wrapped pipe for underground use.
That surprises me, I don’t think it is a good idea to use copper for gas.
I will read that article later, thanks for the link, it looks very interesting.
It talks of three specific problems. The worst is hydrogen sulfide in the gas creating internal and not seen corrosion
I could cut a foot of that pipe, tap it, and get an ashtray full of flaky sheets of corrosion of a scale like something similar to ash, that adhered to the interior of the pipe like a lining.
The article describes such for H2S. It can also then plug/restrict burner tips or pilots.
The effect on valves and jets is why we used to replace every copper tubing ‘flex’ that we came across, it is extremely rare to see them today, of course galvanized water pipes are almost all gone as well.
The article describes such for H2S. It can also then plug/restrict burner tips or pilots.
Wisconsin Energy Co. uses nothing but black iron from the meter (outside) to the appliances inside. From the pressure reducing valve at the meter to the main (tared and paper wrapped welded steel pipe, buried about eight feet down along side the rural road) they run a plastic semi flexible pipe. The joints are made with an electric heater which heats the plastic pipe to the point of softening after which the joints are more or less swagged together. The resulting pipe is pressurized with compressed air to 100 psi and all joints are bubble tested with a soap solution. The pipe is left for about an hour while monitoring the pressure, if it remains constant at 100 psi the pipe is vented and then the tap into the main is opened. I've seen that yellow semi flex pipe used all over on new construction and retrofitting old.
Regards,
GtG
Wisconsin eh? That yellow flex is becoming common in California also.
Something different between San Diego and Wisconsin, is being able to run a 1/2 inch copper water line, or any and all copper water lines, naked and above ground without a care in the world.
I lived in Wisconsin and Minnesota for a time, they have a season called winter there, it is kind of an eye opener to some visitors.
We actually have four seasons just like everybody else.
There is: Almost Winter
Followed by: Winter
And then: Still Winter
Finally: Three months of very bad skying conditions (aka Road Repair)
Actually driving in winter is a lot easier as the pot holes are all filled with snow.
You just might be from Wisconsin if you have more miles on your snow mobile (snow machine) than you do on your car!
You just might be from Wisconsin if you can drive 65 mph through 2 foot drifts in a raging blizzard without flinching.
Regards,
GtG
I remember in Minneapolis, first waiting for summer so that I could do a hundred chores and repairs on a friends house to spruce it up, and then just as summer appeared, it disappearing before it actually even unfolded, you could sleep in for a couple of days and miss the whole thing.
The other was a day warming up to 17 above freezing, and me taking advantage to go tune up my old truck so that it would continue starting, and knock the ice and snow out from under the fenders, and looking up and down both directions of the alley, and seeing everyone else taking advantage of the warm weather to do those kind of duties as though it was spring time.
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