March 7, 2001

SUBJECT: Assembly Numbering of RUS Bulletin 1728F-803

TO: All RUS Electric Borrowers

FROM: BLAINE D. STOCKTON
             Assistant Administrator
             Electric Program

The purpose of this memorandum is to provide Rural Utilities Service (RUS) Electric borrowers relief with respect to the drawing numbering changes associated with RUS Bulletin 1728F-803, "Specifications and Drawings for 24.9/14.4 kV Line Construction." RUS borrowers are hereby allowed to use either the new RUS Bulletin 1728F-803 assembly number or the old REA Bulletin 50-5 assembly number for 140 drawings that we carried over from the old bulletin to the new bulletin. The only stipulation involved in using the old assembly number is that borrowers incorporate certain identified material changes in the new drawings. Details of the drawings and the material changes involved in this customer service offering are contained in Table A of the supplemental guide attached to this memorandum. This guide and the dual numbering provisions included on it for the 140 assembly drawings should ease the burden of changing files, records, computer programs and allow borrowers and their employees to more gradually learn the new construction assembly units, their numbering, and the updated RUS assembly numbering scheme.

We issued new RUS Bulletin 1728F-803 in December 1998, to replace the September 1969, version of REA Bulletin 50-5 of the same title. We provided several notices extending the effective date of Bulletin 1728F-803 with the current effective date being July 1, 2001. Bulletin 50-5 incorporated a total of 260 assemblies of which 140  were re-used and re-numbered in the new Bulletin 1728F-803.

With the provision provided here, borrowers will only need to make changes in their computer systems for approximately 20 assembly drawings that were brought forward to the new bulletin with changes too substantial to allow the dual numbering provision. The balance of drawings in the new bulletin include: (1) the 140 drawings cited in Table A where borrowers may use the old drawing number or the new number; (2) approximately 39 guide drawings which do not involve materials and are not included in computer systems; and (3) approximately 23 new "post insulator" type drawings that were not in the previous bulletin. The new "post insulator" type construction provides a means for making wider angles in line construction but borrowers may not need or may elect not to utilize this type of construction and would, thus, not have to input these drawings into computer systems.

This supplemental guide is effective on or after the date of this memorandum.

 

Attachments

###

TABLE A

Allowed Dual Numbered Construction Assemblies
and Guide Drawings for RUS Bulletin 1728F-803

OLD 
ASSEMBLY

NEW 
ASSEMBLY

MATERIAL CHANGES
(Required for New RUS Specifications)

VA1

VA1.1

No change

VA1A

VA1.2

No change

VA2

VA2.1

No change

VA3

VA3.1

Replace 2 washers abutting pole See Note 1

VA4

VA4.1

Replace 4 washers abutting pole See Note 1

VA5

VA5.1

Replace 2 washers abutting pole See Note 1

VA5-2

VA5.2

Replace 2 washers abutting pole See Note 1

VA5-3

VA5.3

No change

VA7

VA5.21

No change

VA7-1

VA5.31

No change

VA8

VA6.21

No change

VA9

VA2.21

Add 2 washers under crossarm pins See Note 2

VA9-1

VA1.11

Add 1 washer under crossarm pin See Note 2

VB1

VB1.11

No change

VB1A

VB1.12

No change

VB2

VB2.21

No change

VB3

VB3.1

Replace 2 washers abutting pole See Note 1

VB4-1

VB4.1

Replace 6 washers abutting pole See Note 1

VB5-1

VB5.1

Replace 3 washers abutting pole See Note 1

VB7

VB5.21

No change

VB7-1

VB5.31

No change

VB8

VB6.21

No change

VB9

VB2.22

Add 2 washers under crossarm pins See Note 2

VB9-1

VB1.14

Add 1 washer under crossarm pin See Note 2

VB9-2

VB2.51

Add 2 washers under crossarm pins See Note 2

VB9-3

VB1.41

Add 1 washer under crossarm pin See Note 2

VC1

VC1.11

No change

VC1-2

VC1.11L

No change

VC1-3

VC2.21L

No change

VC1-4

VC1.13L

No change

VC1B

VC1.12

No change

VC2

VC2.21

No change

VC2-1

VC2.52

No change

VC2-2

VC2.52L

No change

VC3

VC3.1

Replace 3 washers abutting pole See Note 1

VC3-1

VC3.2L

Replace 8 washers abutting pole See Note 1

VC4-1

VC4.1

Replace 8 washers abutting pole See Note 1

VC4-IL

VC4.2L

Replace 8 washers abutting pole See Note 1

VC5-1

VC5.1

Replace 4 washers abutting pole See Note 1

VC5-1L

VC5.2L

Replace 4 washers abutting pole See Note 1

VC7

VC5.21

No change

VC7-1

VC5.31

No change

VC8

VC6.21

No change

VC9

VC2.51

Add 2 washers under crossarm pins See Note 2
Add anti-split bolt assembly

VC9-1

VC1.41

Add 1 washer under crossarm pin See Note 2

VC9-2

VC2.51L

Replace 2 neutral crossarm pins with clamp type pins

VC9-3

VC1.41L

Replace 1 neutral crossarm pin with clamp type pin

VDC-C1

VD1.81

No change

VDC-C1L

VD1.83L

No change

VDC-C2-1

VD2.91

No change

VDC-C2-1L

VD2.91L

No change

E3-2

E3.1

Add guy marker

F1-1

F1.6

No change

F1-1P

F3.6

No change

F1-1S

F2.6

No change

F1-2

F1.8

No change

F1-2P

F3.8

No change

F1-2S

F2.8

No change

F1-3

F1.10

No change

F1-3P

F3.10

No change

F1-3S

F2.10

No change

F1-4

F1.12

No change

F1-4P

F3.12

No change

F1-4S

F2.12

No change

F4-1E

F4.1

No change

F4-1S

F4.2

No change

F5-1

F5.1

No change

F5-2

F5.2

No change

F5-3

F5.3

No change

F6-1

F6.1

No change

F6-2

F6.2

No change

F6-3

F6.3

No change

VG10

VG1.8

No change

VG105

VG1.2

No change

VG106

VG1.3

No change

VG136

VG1.2

No change

VG19

VG1.7

No change

VG210

VG2.1

No change

VG310

VG3.1

No change

VG311

VG3.2

No change

VG312

VG3.3

No change

VG39

VG1.7

No change

J10

J2.1

No change

J11F6-3

J3.1

No change

J12

J4.1

No change

J5

J1.2

No change

J6

J2.2

No change

J7

J3.1

No change

J7C

J2.2

No change

J8

J1.1

No change

K10

K1.1

No change

K10C

K2.2

No change

K10C

K2.3

No change

K10L

K2.1

No change

K11

K1.3

No change

K11C

K1.4

No change

K11L

K1.3

No change

K14

K1.4

No change

K14C

K1.2

No change

K14L

K1.1

No change

K15C

J2.1

No change

K16C

K3.2

No change

K17

K3.1

No change

K17L

K3.1

No change

VM2-11

H1.1

No change

VM2-12

P2.1

No change

VM2-12A

P2.2

No change

M2-15

H4.1

No change

VM2-12A2

P2.3

No change

VM3-10A

VR1.1

No change

VM3-16

VS2.32

No change

VM3-19A

VR2.1

No change

VM3-1A

VS1.1

No change

VM3-2

VS2.21

No change

VM3-20A

VR3.1

No change

VM3-24A

VR2.2

No change

VM3-25A

VR3.2

No change

VM3-3

VS2.31

No change

VM5-2

VA1.01

No change

VM5-5

VA1.011

No change

VM5-6

VP1.01

No change

VM5-7

VA1.011P

No change

VM5-8

VA5.2

Replace 1 washer abutting pole See Note 1

M5-10

VS1.02

No change

M5-13

W3.2

No change

M5-17

W3.1

No change

M5-18

VA1.10P

No change

M5-19

N1.2

No change

M5-9

VS1.01

No change

VM7-3

VY1.3

No change

M8

Q1.1

No change

M8-10

K4.3G

No change

M8-11

Q3.3

No change

M8-12

Q3.2

No change

M8-6

Q3.1

No change

M8-9

K4.4G

No change

M19

W2.1G

No change

M24

K4.1G

No change

M24-10

K4.2G

No change

R1

M1.30G

No change

 

NOTES TO TABLE A:

  1. New Bulletin 1728F-803 specifies the use of a square, 3" (8 cm) curved washer (abutting the pole) for all primary and neutral dead-end assemblies instead of a square, 2 1/4" (6 cm) flat washer as specified in old Bulletin 50-5.
  2. New Bulletin 1728F-803 specifies the use (addition) of a square, 2 1/4" (6 cm) flat washer beneath the shoulder of all 7.2 kV crossarm pins.