Old Conductor Properties
Old Conductor Properties
(OP)
I'm looking for conductor properties for some late '30s or early '40s hollow copper conductors.
I have that the conductor is described as
350 kcmil Cu PH D 1319HSC2
I'm sure that at some point the 'kcmil' replaced an designation of MCM or it was 350,000 circular mils. All reports I have is that this is a hollow conductor.
I have the "Characteristics of Anaconda Hollow Copper Conductors (Anaconda Wire & Cable Company)" and "Characteristics of General Cable Type HH Hollow Copper Conductors (General Cable Corporation)" tables that are available in various sources and I can't match the supposed impedance of a line using this conductor.
For instance, there is a 17.30 mile line using this conductor, flat construction with 12 feet between conductors. The published impedance, in pu on 115kV and 100MVA bases, is
R1=0.02457
X1=0.10369
R0=0.06198
X0=0.35214
Using the Anaconda 378R1 design, and a triangle of equivalent spacing (how it would have been done by hand when the line was built), I get
R1=0.024187 98.44%
X1=0.101475 97.86%
R0=0.061579 99.35%
X0=0.349922 99.37%
When I calculate it using actual spacing, I get the same values for these parameters.
If I futz around with the parameters, I can get very close
R1=0.024567 99.99%
X1=0.103693 100%
R0=0.061958 99.96%
X0=0.35214 100%
But now I've got resistances and GMRs that don't match any of the conductor property tables I have.
Does anybody have other conductor property tables for any sort of hollow copper conductors besides the two I listed? Does anybody recognize the "PH D 1319HSC2" and have a way of converting that to a conductor specification that I might find on-line some where?
I have that the conductor is described as
350 kcmil Cu PH D 1319HSC2
I'm sure that at some point the 'kcmil' replaced an designation of MCM or it was 350,000 circular mils. All reports I have is that this is a hollow conductor.
I have the "Characteristics of Anaconda Hollow Copper Conductors (Anaconda Wire & Cable Company)" and "Characteristics of General Cable Type HH Hollow Copper Conductors (General Cable Corporation)" tables that are available in various sources and I can't match the supposed impedance of a line using this conductor.
For instance, there is a 17.30 mile line using this conductor, flat construction with 12 feet between conductors. The published impedance, in pu on 115kV and 100MVA bases, is
R1=0.02457
X1=0.10369
R0=0.06198
X0=0.35214
Using the Anaconda 378R1 design, and a triangle of equivalent spacing (how it would have been done by hand when the line was built), I get
R1=0.024187 98.44%
X1=0.101475 97.86%
R0=0.061579 99.35%
X0=0.349922 99.37%
When I calculate it using actual spacing, I get the same values for these parameters.
If I futz around with the parameters, I can get very close
R1=0.024567 99.99%
X1=0.103693 100%
R0=0.061958 99.96%
X0=0.35214 100%
But now I've got resistances and GMRs that don't match any of the conductor property tables I have.
Does anybody have other conductor property tables for any sort of hollow copper conductors besides the two I listed? Does anybody recognize the "PH D 1319HSC2" and have a way of converting that to a conductor specification that I might find on-line some where?






RE: Old Conductor Properties
1) I found the 3rd Edition of PENDER- DEL MAR from 1936 and
on page 14-163 I found these types of Hollow Cables:
P.D.C.P Hollow core cable
Anaconda I-Beam Cable
Type HH [Heddernheim] Cable
A.S.&W. Type Cable
2)The type of conductor Cu PH D 1319HSC2 I think may be Copper [Cu] Phosphorus [PH] Deoxidized [D] High-Residual phosphorus. [DHP-ASTM].
If the R1 resistance temperature is 25oC [77 F] than pure copper presents 0.1627 ohm/mile[350 MCM] that means total R1=17.3*0.1627= 2.81471 ohm.
As DHP copper has only 85% of pure copper resistance R1=2.81471/.85=3.311
Or in p.u.=3.311*100/115^2= 0.02504 approx.2% more than R1 in the opening post.
RE: Old Conductor Properties
Can you tell me where to get the Characteristics of Hollow copper Anaconda Transmission conductor that you reference online?
RE: Old Conductor Properties
RE: Old Conductor Properties
the cable was used in the 30s to connect Hover dam to LA. It has some problems sagging to much under load and hot desert sum.
It is not in use anywhere except the gift shop (if there3). WWII took care of the sag problem, the line was replaced and copper went to the war effort.
By the way why do you want to know the charesterics? It's used nowhere now except in homework problems?
RE: Old Conductor Properties
RE: Old Conductor Properties
RE: Old Conductor Properties
RE: Old Conductor Properties
RE: Old Conductor Properties
RE: Old Conductor Properties
RE: Old Conductor Properties
RE: Old Conductor Properties