ML20215N333
| ML20215N333 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 07/25/1973 |
| From: | Chandler F, Hodges R, Springer J TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20215N324 | List: |
| References | |
| G-38, NUDOCS 8611050250 | |
| Download: ML20215N333 (25) | |
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TENNESSEE VALLEY AUTHORITY DIVl3lON' OF ENGINEERING DESIGN l
. SEQUOhAMNUCLEARPLANT ,
AND ALL FUlTRE NUCLEAR PLANTS GENERAL CONSTRUCTION SPECIFIC ATION NO. G-38 , ."
FOR ,
DTSTALLDU INSUIATED CABLES RATED UP TO'15,000 YOLTS INCLUSIVE July 25, 1973 SPONSOR ENGINre .
- 3MM SUBMITTED 7 SP ECIFICATION SECTIO *id-,JRECOMMENDED diV
' AppgOygo -W rr & %,,ss Director of Co truction APPROV q .
y Director of7 Enginee ing Design p -- . . y .
8611050250 DR 861031 . ,
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CONSTRUCTION SPECIFICATION
, FOR INSTALLING INSUIATED CABLES RATED UP TO 15,000 VOLTS INCLUSIVE SEQUOTAH NUCLEAR PLANT AND ALL FUTURE NUCLEAR PLANTS -
PREFACE This specification supersedes GENERAL CONSTRUCTION SPECIFICATION NO. G-4 for this project and all future nuclear plants.
Special instructions will be issued for areas where excessive temperature or envirornnent prevent the use of standard cable and terminals. ,
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CONSTRUCTION SPECIFICATION FOR INSTALLING INSUIATED CABLES RATED UP TO 15,000 VOLTS INCLUSIVE SEQUOYAH NUCLEAR PIANT AND ALL FUTURE NUCLEAR PIANTS '
C0NTENTS Section Page
- l. GENERAL 1.1 Scope . . . . . ..................... . . . . 1-1 1.2 Drawings ... .................... . . . . 1-1 1.3 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.4 Reference Specifications . . . . . . . . . . . . . . . . . . . 1-1
- 2. MATERIAIS 2.1 Cable . ..... ............... . . . . . . . .
2-1 2.2 Teminals and Splices . . . . . . . . . . . . . . - . . . . . . . 2-2 23 Terminating Kit s - 8 W . . . . . . . . . . . . . . . . . . . . 2-3 2.4 Terminating _ Kits - 600 Volts . . . . . . . . . . . . . . . . . 2-3 2.5 wire Strippers . ............. . . . . . . . . . . 2-4
- 3. INSTALIATION 31 In cable Tray or Conduit . . . . ._. . . . . . . . . . . . . . 3-1 32 In Earth .... .. ............... . . . . . . 3-2
- 4. TERMINATION AND SPLICING 4.1 Thermoplastic-Type Insulations ................. 4-1 4.2 Rutber or Rubber-Like Insulations . . . . . . . . . . . . . . . 4-1 4.3 Coaxial and/or Triaxial . . . . . . . . . . . . . . ....... 4-2
~4.4 Signal ..... .......... .............. 4-2 4.5 Special . . . . . .......... ............. . 4-2
- 5. TORQtTING P3QUIREMENTS 5.1 Torque Wrenches and Screwdriverk ................ 5-1
- 6. IDENTIFICATION TAGS 6.1 Conduit and Cable . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6.2 Terminal Blocks and Strips ................... 6-1
' 7 TOOL MAINTENANCE AND DISPECTION PROCEDURE 7.1 Tool Maintenance .......... ............. . 7-1 7.2 Documentation . . . . . . . . . . . . . . . . . . . . . . . . . .-7-1
1 CONSTRUCTION SPECIFICATION FOR INSTALLING INSUIATED CABLES RATED UP TO 15,000 VOLTS INCLUSIVE SEQUDYAH NUCLEAR PIANT AND ALL FITfURE NUCLEAR FIANTS . :
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- 1. GENERAL 1.1 Scope. It is the purpose of this specification to prescribe materials and procedures for installation, termination, splicing, and marking of
' insulated cables. _
1.2 Drawings. All work shall be done as herein specified and as indicated on TVA project drawings and on the latest revisions of the'following standard drawings:
~30B1045 - Conduit and cable identification tags.
. 30A551 - switchboard and panel wiring diagram.
30B1075 - Shielded cable termination ground sensor current transformer application.
30A1031 - Coaxial cessnunication cable straight temination.
30A1032 - Ju=ction box teminal details coaxial consnunication cable.
30A1033 - Terminals coaxial commuunication cable curved termination.
30A811 - Conduit sizes for cables various diameters.
30A565 - switchboard panel wiring - Wiring methods.
13 Definitions. Wherever the words defined below appear in this specification, they shall have the meanings here given:
Raychem Terminating Kits. A package of material that includes all necessary items except for the terminal lug for cable termination including instructions. This kit is manufactured by the Raychem Corporation.
1.4 Reference Specifications. The latest revisions of the following j specifications shall apply where referred to in this specification.
TVA Specification 25.013. Standard Spe: fication for Polyethylene-
' Insulated Wire and Cable i
, . TVA Specification 25.014. Standard Specification for Switchboard Insulated Wire l
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[i TVA Specification 25.016. Standard Specification for Cross-Linked Polyethylene-Insulated Wire and Cable MIL Specification MIL-W-168781A. Wire Electrical, Type E, 200 C 4 and 260 C, 600 Volts (Insulated, High Temperature) no 9
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- 2. MATERIALS l
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2.1 Cable. 'The cables covered by this specification are of the following ,
T7A designated types:
l Type PN . Single-conductor wire or cable with polyethylene !
insulation and a nylon jacket (TVA Standard 1
. Specification 25.013).
Type PJ - Single-conductor wire or cable with polyethylene insulation and a polyvinyl-chloride jacket (TVA Standard Specification 25.013).
Type PJJ - Multiple-conductorcablewit51acoreconsistingof type PJ cables with an overall polyvinyl-chloride jacket (TVA Standard Specification 25.013).
Type CPJ - Single-conductor wire or cable, with cross-linked polyethylene insulation and a polyvinyl-chloride jacket (TVA Standard Specification 25.016). _
Type CPJJ - Multiple-c6nductor cable with a core consisting of type CPJ single conductors with an overall polyvinyl-l chloride jacket (TVA Standard Specification 25.016).
Type CPSJ -
Single-conductor cable similm to type CPJ except with electrostatic shielding tape added between the insulation and the jacket (TVA Standard Specification
-25.016).
Type SRCkTJ - Multiple-conductor cable consisting of a core of single-conductor cables with silicone rubber insulation and a color-coded glass oraid jacket with an overall asbestos braid jacket.
Type SROAJ - Single-conductor cable with silicone rubber insulation and an asbestos braid jacket.
Type E - Single-conductor cable with 200 C Teflon insulation.
600-Volt switchboard wire (Military Specification MIL-W-168784A).
Type SIS -
Single-conductor cable with cross-linked polyethylene l
insulation. 600-Volt switchboard wire (TVA Specifi-cation 25.014, Tentative December 18,'1972).
Signal - Multiple-conductor cable with cross-linked polyethylene insulation *, overall shield, chlorosulfonated polyeth-l ylene* jacket.
Signal -
Two-conductor cable with 200 C Teflon (FEP) insulation,
, twisted, shieldM, Teflon (FEP) jacket.
- or TVA approved equal material suitable for reactor, j , containment, nomal, and accident environment.
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C c Instrumentation - RG-11/U triaxial cable modified for reactor contain= ant environment.
Instrumentation Conductor combination cable, consisting of 2 single conductors, Tefzel insulated, 1 pair Tefsel insulated unshielded, 1 pair Tefsel insulated shielded, and two 75-ohm coaxial cables, chlorosulfonated polyethylene jacket.
2.2 Teminals and Splices. Vinyl-insulated or uninsulated ring tongue terminals shan be used for terminations for wire size 10 AWG and anall er. The insulated teminals with wire insulation grip shall be used where the insulation of the barre 1~of the terminal is necessary and where vibration or flexure at point of application is encountered.
thinsulated terminals shal1 be used for terminations larger than No.10
, AWG as shown in the table below. The uninsulated termina1m are intendied l for applications where total temperature of the conductor does not exceed i 175 degrees C (347 F). The insulated teminals are intended for appli '
cations where total temperature of the conductor does not exceed 105 degrees C (221 F).
Teminals and splices purchased from The Thomas and Betts Company 'shan be instaned with tools purchased from that Company as fonows:
Wire Terminal Die Butt Splice Range, AWG Catalog No. Tool No. Catalog No. Catalog No.
Series A & B 22-14 W1' 130A n n,, Series AA & BB 22-10 Series C WT 130A t/ ere Series CC 8 54104 or 204 TBM15 15520 54504 6 54105 or 205 15522 $505 4 54106 or 206 15527 54506 2 %107 or 207 15528 %507 54109 or 209 15508 54509
'20 54no or 210 15526 54510 0 54112 or 212 155n 54512 250'mem 54n3 or 213 15510 54513 300 mem $n4 or 214 15534 54514 400 mcm 54n6 or 216 15512 54516 500 mem An8 or 218 15506 $518 P
750 mcm 54123 or 223 15515 54523 Terminals and splices purchased from the AMP Special Industries, Division of AMP Products Corporation, shall be installed with tools purchased from that Company as follows:
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C. c l Wire Terminal or Butt Splice Die Ter-h1 Catalog l
Range, AWG Catalog No. Catalog No. Tool No. Catalog No. No. (2 Hole) 22-16 Solistrand 330367 49900 None 16-14 20304 330368 49900 None-12-10 -
f 330369 49900 None 22-16-Ins PIDG 320559 59170 None 16-14-Ins L-101 320562 59170 None 12-10-Ins k 320570 59239-4 None 8 33MO 34321 69355 None 6~ 328142 328180 69120 69133-1 4 328162. 328182 with 69134-1 2 325201 32457 69099 M765-2 325303 322458 Head M766-2 327281 2 325403 32459 M767-2 327282 4 325603 32 W 1 M750-2 327284 250 mem 325705 32462 M751-2 327285 300 mcm 325805 32463 v M752-2 327286 -
400 mem 326005 32465 with M754-2 327288 500 mcm 326105 32466 69082 M755-2 327289 750 mcm 326406 32469 Head M758-2 327292 1000 mca 326606 32471 f~ M760-2 .327294 Tools from The Thcuas and Betts Company and AMP Special Industries may i -
be used interchangeably to install terminal lugs and splices only if they are certified by the manufacturer.
23 Terminating Kits - 8 kV. For 8-kV teminations using Raychem Corporation i terminating kits, installation instructions included in the kits must be adhered to. Use kits as follows:
- 2/o-250mca-Kit #MT-1-A-1 300-500 mca - Kit #WT-1-A-2 750-1000 mcm - Kit #HVT-1-A-3 2.4 Teminating Kits - 600 Volts. For 600-volt splices using Raychem
. Corporation splicing kits, use kits for wire size as follows: -
Conductor Size Sleeve Size
- 8 thru #4 AWG WCSF 220-12
- 2thru#2/0AWG WCSF 300-12
- 3/Othru250mem WCSF 500-12 t 300 aca thru 500 mcm WCSF 600-12 l 600 mca thru 1000 mcm WCSF 1000-18 2-3
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t 0.5 Wire Stripoers. Self-adjusting wire strippers shall be used for stripping insulation from cables No. 24 A W to No. 10 AW. The Thomas and Betts Company wire strippers catalog No. ABMK-1 may be used for wire size AW 24 to 12, and catalog No. ABMK-3 may be used for wire size A W 18 to 10.' AMP Special Industries wire stripper catalog No. 29898-9 may be used for wire size AW 22 to 10.
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- 3. INSTALLATION 31 In cable Tray or conduit. The following maximum tension must not be exceeded when pulling a cable, except NIS cable (Special Handling):
- a. The maximum tension (Tm) shall not exceed 0.008 times cail
- area when pulled with mechanically assisted methods.
Where Tta = 0.008 x n x cail Tin = maximtsa tension lb 4
n = ntanber of conductors in cable cmil = circular mil area of each conductor
- b. 2
+ The marianna tension for leaded cables shall not exceed 1500 lb/in of lead sheath area when pulled with a basket grip.
Tm = 4712t (D-t) where t = lead sheath thickness, inches '
- D = outside diameter of cable, inches
- c. The marina tension shall not exceed 1000 lb for nonleaded cables when pulled with a basket grip.. (However, mari== tension calculated for item a cannot be exceeded.)
- d. The mariem tension at a bend shall not exceed 100 times the radius of curvature of the duct expressed in feet (but mavi mm
. tension calculated from itens a, b, or c cannot be exceeded).
The cable shall be prepared for pulling by removing ~the insulation a sufficient length to allow the conductor to be folded beck'on itself in order to form a loop. The joint shall be taped with plastic tape to present a smooth surface to the inside of the conduit. This loop shall be the means of attachment to the pull rope. In no case will the rope be attached to the insulation of the conductors. If multi-conductor cable is pulled, each conductor shall be attached to the pulling rope. Coaxial and triarial cable must have the shields and conductor fastened to the rope. The measurement of cable tension is not necessary if.the cable is pulled by hand. If the cable is pulled by mechanically assisted methods, cable tension shall be limited to that given under 3.la, b, e, and d.
When measuring or pulling cable in aluminum or plastic conduit, a l
fish tape with a protected end must be used in order to avoid damage to the inside of the conduit.
Lubricants for pulling cable having an outer covering consisting of a rubber-like jacket are recommended as follows: (1) dust with mica or
' soapstone, (2) water, (3), Wire Lube or Yellow 77 (Ideal Products i Company), (4) talc, (5) soapstone and water, and (6) soap and water.
Soap should be a low-alkali type such as Ivory soap flakes. Uhder no i
circumstances shall soap be used when installing cable in aluminum conduit.
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Lubricants for pilling cable having asbestos-braid covering are recomunanded as follows: (1) soapstone, (2) tale, (3) soapstone-
. and-water thick paste--use very little water and smear the paste lightly on the cable.
Claan14 ness is of great importance in the = M ng of any splice or.
termination. The splicer's hands should be clean, particularly L an applying the tapes, and every reasonable precaution should be taken to exclude dirt and moisture while the work is in process. Ir hot atmosphere, sweat bands around the splicer's wrists will tend to prevent perspiration from accumulating on the Bands and are reccamended.
5 , 8 , and 15-kV cable shields should be grounded at both switchboard ends and at equipnent and of the run with No.10 AWG bare copper or
- equivalent flexible copper braid unless the drawings specifically
, state otherwise.
On long runs, shields should also be grounded at intemediate points -
not over 800 feet apart. The locations of points of access, such as pull boxes and nkdoles, will detemine the interval. In =Hng the intermediate grounds, remove only an amount of the jacket sufficient to permit soldering the ground lead to the shielding tape and insulate ~
with Raychem heat shrinkable tubing.
Shields of all conductors 1,000,000 cail or larger shall not be grounded at both ends. The drawings will show the location of the grounds and of shield insulating joints if the latter are required.
Where shielded power cable is terminated through s ground sensor current trancformer, the shield ground lead must be installed in accordance with standard drawing 30B1075 in order that the current transfomer sees only the phase currents,- and to avoid the ground connections . constituting a shorted turn in the current transformer primary.
After pulling each run of cable and prior to cutting frcza the reel, the palling end of the cable should be avamined for any distortion or deformation to assure that a sufficient length of uninjured copper, insulation, c.nd jacket is available as required for the splice or termination.
NIS cable to be installed per manufacturer's recommendations.
3.2 In Earth. The trench for the cable should be dug to at least 21+ inches below surface grade so cable will not be disturbed by surface digging or
' frost. The bottom of the trench should be loosened and free of rocks and other rough material.
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Prepare a bedding of ' sand or screened dirt in bottom of trench for the cable to rest on. In laying the cable on this bedding, permit it to snake slightly in'the trench to' allow slack when the earth settles. If single-conductor cables are to be laid in the same trench, it is desirable to keep them separated uniformly, about 6 inches between centers, so earth and sand can be filled-in around them. Be certain there are no crossovers.
After the cable is laid and before backfilling, cover the cable at
- least 6 inches with screened dirt to improve heat dissipation and avoid bruising or distorting the cable during backfilling. In areas of heavy traffic or places where excavating is likely to occur, protective slabs should be placed over the screened dirt covering to protect the cable and warn workmen of.its presence. If planks are used, be sure they are free of nails and not in contact with the cable.
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- 4. TERMINATION AND SPLICING 4.1 ' Thermoplastic-Type Insulations. A n terminations and splicing of ,
conductors shall be accomplished by means of ring tongue terminal lugs and butt splices crimped onto the wires by means of matching tools, which are designed to produce a carefully controlled uniform pressure cr1 Jap.
Tools, terminals, and butt splices, which st.tisfy the basic requirements of this specification, must always be used. However,because of differences between tools and terminals of various manufacturers, the user should always familiarize himself with manufacturer's instructions for the specific type of taminals and tool he intends' to use.
Both insulated and uninsulated terminals are available through size AWG No. 10. The principal advantage of the insulated terminal with insulation grip is its ability to provide mechanical stress relief at the junction of the insulation and barrel, and some protection against '
electrical faults and accidental contact with live terminals. All splices must be insulated either by preinsulated splices or Raychem Corporation teminating and splicing tubing must be used as follows:
-1. Use a propane or butane gas tank.
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- 2. Apply heat to the Raychem Corporation terminating and splicing tubing with a Raychem torch catalog No. FH 2609 or equal.
- 3. Adjust torch to obtain a blue flame .with a small yellow tip. ..
Pencil-like blue flames should be avoided.
- 4. Start shr4*ing the tubing at one end and work towards the middle.
(Keep the flame moving continuously to avoid scort'hing the tubing.)
$. Apply heat until surface of tubing is smooth and the sealant is flowing out both ends of the sleeve. Tubing should be smooth and wrinkle free with inner components clearly defined.
4.2 Rubber or Rubber-Like' Insulations. Cables with rubber or rubber-like insulations (types SROAJ and SROJJ) shall be teminated or spliced by one of the following procedures:
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- s. Install uninsulated terminal or connector as listed under section 2.2 and build up over exposed copper surfaces with 3M Company, Scotch 70 tape to a thickness equal to the original insulation and jacket,
- b. For splices in multiple-conductor cable, splice the single conductors in accordance with a. above and build up final cover with Scotch 70 tape to approximately the same thickness as tha origins.1 jacket..
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4.3 coaxial and/or Tricxial. coaxialand/ortriaxialcablesshallbe terminated with the appropriate connectors that are furnished on the instrumentation equipment contract as referenced on the TVA wiring connection drawings. The procedure used shall be in full compliance with the instructions furnished by the instrumentation equipent manufacturer and the terminations mhan be made with appropriate tools and supplemental materials (such as solder, sleeving, etc.)
furnished by the instrumentation equipment manufacturer. Splicing of coaxial and triaxial cable shall not be pemitted.
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~4.4 Signal. Where multiconductor signal cable is to be terminated in multipin connectors supplied with instrumentation equipnent, the same procedure shall be followed as outlined in section 4.3 for coaxial cable.
4.5 Special. TVA terminations on equipment where terminals are furnished by the manufacturer shall conform to this specification. If certified tooling is not available for the terminais furnished by the manufacturer,'
term hala and tooling that are certified shall be used.
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- 5. TORQUING REQUIRDEITS 5.1 Torque Wrenches and Screwdrivers. Tightning of screws and bolts on teminal blocks, motors, panels, boards, etc., will be accomplished
- - by using torque wrenches and screwdrivers. The following table shall be'used to set the torque required
Screw Torque Size in in1b 4
y 5 10 6 12 8 18
. 10 20 1/4 30
- Torque in ft-lb Bolt Steel Bolts Steel Bolts Duronze Size (Standard) (High Strength) Bolts 38 15 25 20 12 25 50 40 5/8 40 90 75
- Data from H. K. Porter Company. The torque values given have a safety factor of from 2 to 4 depending on the size of bolts. (The larger the bolt, the greater the safety factor).
Tensile strength of duronze bolts = 100,000 psi Tensile strength of steel (standard) bolts = 55,000 pai Tensile str ngth of steel (H.S.) bolts = 120,000 psi I
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- 6. IDENTIFICATION TAGS 6.1 Conduit and Cable. Each conduit and cable shall be tagged and I marked in the manner shown on. standard drawing 30B1045 l 6.2 Terminal Blocks and Strips. All terminal blocks shall be marked the same as designations on wiring diagrams. All tag markings shall be of the size stated on the drawing. Terminal strips shall be marked using waterproof ink. The letters and figures shall be carefully made to produce clearly legible desi nations. 6 4
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- 7. TOOL MAIFTENANCE AND INSPECTION PROCEDURE 7.1 Tool Maintenance. Division of construction must follow the recommendation of the tool manufacturer in setting up a main-tenance-inspection program to ensure that continued use of the tools will result in dependable and uniform terminations.
7.2 Documentation. Division of construction has the responsibility of documentation of the program to assure that correct terminals and tools have been used.
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4*=o >= J > 49
- o. >
"z *9 a4- tad as M e9 K w ==
G === e4 tad
- +4 ** (6 ,
- e4.>J o 3 e- >aat >=
u 69 s .
E p. 3 s .w-A o. o
-e aus 44 m et u u es an.d P =.J p.'- -
as E e
w.
tas <
o to - O ou '-.'6.=F.(.*.
, '/. .t -
as J > w we a a er .. a o es. 4.s;p/3 *
- eg has as wg es o taJ o E F -
tab ** es tai tas =s >=
J z ka 88 WD *8 s w .m D .a.
.J E M at o O fsf*$ysw=* "e V
E N e'*es [I6 &
es en = -w Mw w . a.a >=am.
uw m.
-X>e taa nn.s 2 enomE >M < e. As t' .'.
es -
m had E e4 tae e ene 49 o tee u E====
was u es W 'bn. f :.oy.n.
ba E 4 *'8{ 4. , ,/*g.: 'a ,
www, m.s y.
a 7
a a T 7 I I 1 P taJ at en o w e= o wt.
>=
. ,< .2 9 me u w se h.ad naa 4 k= .eR a taees end M.J D as taJ E 80 O >=
at J w -i.J a es as >= . y', ' a 0 z o.ut 09 e a at O B ta x OE as >= emJ o u aK E et *E E e - Mas o *= M at e4
- o. oJ mb e4 o em u z3u *O v er > as O -c.% 3 tad = . te o >. O naJ >O D and ed o ou y >=8 as J u al.deo o J >= 64J E E *DE 84 t** == M >= x ag e4
> g.had,->=eg >'- 3 3 as had u eg o o b 8P 4"3 W - == espAta.s x-e tadA *E D =JEDu as N had o J- *
- e. as en tp J
3% as ea en o es and en a o
-E oDoo e o m .,
es = o D e.es >= as # b- ..-
u weoEnexwE
==
e as anJ E taJ > o es o 40 E er 4 44 - == u
- 9 taa .o= tad - taJ E nadeto o e.e Nemo3=c t
- p= E taa - >+ o e9 O m3 > as u b) D* e4 >= -
tne '
%+= o z wt M 8= -Em Lad .J m ws og .J u "3 as
=.B >
J h* ===M .O >* Eo on, - B.i =ns has tas e N 4 as ta.s e>o m o. taa tee =E ew D E z
3 O tad at X E as u tad e.s taJ oge,,J., a em og o
g m .J > J DC ~3 o ps man, pam"'i% A A e a E as as u E E w gp ena gp og e as ag >=
p-e e o a. as O u
. .40 z D 4 and SwD M O - er == o taa oN.o 3=== 3as a.t p 66 o- O u >===ee= o w ins -n. %> 44 as e*) 44 e= O = E E t.ad
.J E =E E o
> =E.%s n- =
es e == >= taA em Mtal- Eto
==e4oo o=JQ D e et oo as
== o .o
- $3 L9 a= tsk --
->=t
==
et e3 o =E u
am t= O%
- 40 GD o eG ed o u M.J o J O
--E o na. o Z ~
as at taJ et p.
o u s es
>= M% me .ad J as== saa
- e en
== s suD er e=E
> e. "'s Eb had M=DE De wDwe 6 m 80 e As oo- E e4 o%E em o e3 4 s 8% wa E E tad =9 g ia.J .a ==4D - 2 k as O .aJJ t.a.Je E == taJ 2 o =E E->= E > ** U u e e og ens pg- N >.m.m 40 sh == >= wt z es eK er o 4 -too o E M as as W tade o h.ad e3 D tad J 8*****e J *E 8 8EB E o ** 3 *E u >= - had and ned
.m,6 a u9Wt,aJ
'"'""% #"E
===E J "E u ED es."3" o E88 e4 >+ u 48J n as "B* - aE as o e4 "P
- V8 *** "
3; E D taf E M" 4 -
wD E se g M" hs Mzo3w e4 o ==end o A-of.#-
e -. > hp == o gj ,,
CO
) (,3
=
o >=es fa>s= a k og
- b) eb bI o g ,_ >'"
to.--w,.--we6 / ""'usausa.
- - u=
> > x e .r e o un.E.
Dw.w Ooooo o
u E-g-o -
- w w 2 *
"gog N N o i gl 4
- .- *-a 4 e,4 " 1 a-E-. l - ~
asoooa t aur
.a e e
o-o ,
I i=
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>=
Ew _ar e
m en w as woen te, E w J as wm ,%s- _J rii -
-omo M
.E.. MGu E-DaE E oooa s.o. se
. D<<
oua -m
=J e I ,=!
_4
-uuuua n 11181 '
s N
- 4
-% l s l l J
,,oe seedg-y ereener ceredeels f creener oormenees v '
conneer or 6 \\ e 4 sread een % " eae
} g1I l I L l ~
eae I l sree.d eemser ear. areessiermer, evadear ripe sven 7
stress 4
en.s ee e 4 7
./ ~
f y
/
aree.d u.ser eer no-.1--er, ade= orn, su nere 3 % j ereo.d ~~r ca. oreec ramer, meden orre, ue use 3 % 30*nqben*"
[ >
f.8 a 8I 8II I1 8 e *tt-
, c ,
e c , : E T
5 I3 I creand ses e couen ereend (cewee se aped see g se seed
/ l l l CASE A CASE B Leed embles euerer either Snp
[ l Lead embles leerleg einer 900 er eerrem e# severageer er eettem of setteegeer g (cassee seeeing herren sneal (coetes reesong s**ren showel .
' Greend sensM .
NOTES: NOTES: *'
, $ *r,g "e L a , sed coun mesa ,e s L Air seed eeues mes,,0.
meeege Ne aindow of the Nreegh No window of the , ,
y 2.
servent treesformer, when corren9 keenfermer os corrent kwesformer. g lg g
- 2. Terminere renes the some 00 g Cg meneted en on Case A, tennaee9e Case A,eece99 anM ake greend eeNes per stendard &eenng strQ 09 M0 CWeee gene end so-t-e-Jonsono,ooe2 e ms.en or a ne sud side er emneenn Sooemeenen e d. one awreer armromer er erned su m p** uu Ind
- 3. l Feen ce6tes enere toe et senes. certing threegh the seterJoche9 geer, secreet Weesformw owM end cerefelly sordering fee be ebene broeber conninels. grened 09 tog 9e the shield. , a
- 3. ween seeks reese ser er soirse. v v geer, terreef hemsAsraer e###
) be ehere breeter norminek. CASE C .
i Leed eebles seering bers ase and berrem er omrengeer I
Not to esele
- r. non need ensin here kom here see end eertem of ELECTRICAL STANDARDS s
sanengeer, tse erned senser eerrent osasAsraers w# se , SHIELDEO CAOLE TERellNATION g, fe*#*((*( **emN a'eee.e GROUlt0 SEfsSOR CUR.TRANSF
$NE""" l
- - se Csee A. '
APPLICATION
"" ', DEssGN ANO ORAFilers STANDARDS YtNNtssty ,AUTMolhTV y TWf3 ONWiMG SUPEbFSEDES JM10!Ene $ -
t F es fe le I e ISOSIO75 ee T. . * *
. [ ...I !
m t .
. 3.W wgw g; y p p. p +i. A y m ww. ,yn/ , ppg. .c&:.ny.gqb Nd ' - . = ; g i-.
y, e .
x =RELAr. PANEL ' CON (ROL STATION -
2' N' BK7U lW % CL23 m N
(,- v g C L24-G \ ,/
4- SrAx a
ST8X I OPEN l BL STCX m 4A5(G)"
c h W-BK
-R-BK '
,6 1
CLOSE STC 9' 4A4(BK) 0-8K 4A8(R) -
o C (BK W28L-8K^ STB 2 / 4A9I0) G 4AB(W)
Rj 8K-W7 STC2 0
ITA2 y 5 hi IT82 65PI(R) "
4 201 65Sl(BK) ^
65NI(W) 03 h
g' "8
. SHOW:
- - 4
- l. ALL LETTERING IN CAPITAL SLANT LETTERS. MAIN DESIGNATIONS (PANEL ETC) NO. 6
( SIZE LETTERS, ALL OTHERS NO. 4. VERTICAL LETTERS WHERE REQUIRED TO MATCH
~
LETTERING PRODUCED ON DRAFTING MACHINES.
- 2. PANEL OUTLINES WITH DASHED, 4 WIDTH LINES.
- 3. INSTRUMENT OUTLINES WITH UNBROKEN, 4 WIDTH LINES.
- 4. CONTROL OR INSTRUMENT CONDUCTORS WITH UNBROKEN, 4 WIDTH LINES.
- 5. DIRECTION OF WIRES JOINING A GROUP AT RIGHT ANGLES TO THE GROUP, EXCEPT WHEN 45*
CORNERS ARE REQU! RED FOR CLARITY.
- 6. TERMINAL BLOCK SECTIONS WITH UNBROKEN, 4 WIDTH LINES (SIZE 0.6" X 0.2").
- 7. CONDUlTS WITH A BROKEN CONDUlT SYMBOL (SIZE 0.7" X 0.2").
- 8. ROUTE LlHES WITH DASHED, 4 WIDTH LINES. IF ROUTE LINES CONFUSE THE DRAWING
- DIRECTIONAL ARROWS MAY BE USED.
- 9. ABBREVI ATED COLOR CODING OF INDIVIDUAL CONDUCTORS IN CABLES: BLACK-8K, WHITE-W, RED-R, GREEN-G, ORANGE-0, BLUE-BL, YELLOW-Y, VIOLET-V, PURPLE-PR, BROWN-BR, SLATE-S, WITH HYPHEN TO SEPARATE BASE AND TRACER COLOR (S),
- 10. CONDUCTOR COLOR CODlHG IN PARENTHESES ONLY WHEN IT APPEARS TOGETHER WITH ANOTHER CONDUCTOR DESIGNAT10N.
ELECTRICAL STANDARDS NOTE: .
THE SIZE OF LETTERS AND WIDTH OF SWITCHBOARD AND PANEL WIRING ARRANGEMENT
!!"l'T3.%#h'LW j LINES REQUIREMENTS FOR DRAFTING MA-b l--l-H-4 CHINE WORK DIFFER SLIGHTLY FROM
"* E E .7 0 o..
. THESE STATED ABOVE, AND LETTERING 'T c"NNNt0 vby"SukapDS ON
~" -=j PRODUCED ON THESE MACHINES IS - - = ~~1Z 2 "3 .
VERTICAL INSTEAD OF SLANT. b ' 'I #
aosma io 6 4fl G { E I O l 30A551 RI
- C l
r elYiring guffe, _
l
---q Y l ._ _. _ ]
g l l l
_g , g l
_ ._ .,ag 7 ,g g ,, ,; ,, ,u ,
-E9- -- 9--]
- L9 ----9]
. :. . NN-Ab 3 J~"-
/~ .
w Cable fies or cable straps
"~~~
1 .
Y I. Switchboard wires, running from any panel-mounted device (relay, to terminal blocks orinfo wiring guffers, instrument, sha// be grouped switch, in rounetc.)d packs and fled together as required for adequale support.
2.For binding unsupported wire packs use molded, high temperature cable fies siml/ar to:
- a. Thomas & Beffs, fool applied, Cat. No. TY-5.
- b. Thomas & Beffs, selflockin
- c. Panduit Corp, ' Lok- sfrap,"g, Type Caf. No. TY-25.
LST-2.
- 3. Where supporting of the wire pack by the cable tie is required use molded, high temperature cable straps similar to:
- a. Thomas & Beffs, fool applied, Cat. No. TY-IS.
- b. Thomas & Beffs, selflockin
- c. Panduit Corp," Lok-strapType " g, LSC-2.
Caf. No. TY-35.
- 4. The routing andpoints of support shall be determined by the electrical engineerin the field.
- 5. All bends in switchboard wire shallnot be less than l" radius.
6.Unless otherwise noted on the switchboard wiring diagram drawing all wiring is to be stranded Awg size /4
- 7. Wire stripping tools and compressio,n type lugs are to be used fbr swifchboard wire and cables.
ELECTRIC AL STAN DARDS m ,: _,-m . m . m .
72%?fdh. SWITCHBOARD FANEL WIRING Tj}."{fL,w- Sources ofsupply: WIRING METHODS
.1 ,a+ p i ; Thomas & Betts Co.
. . - . n. . Elizabeth, V. d. GENERAL
..*#'": ?I5k. ?.:.: Panduit Corporation ""'WE,L^kMi,^a?HCR'TY .'
N""'~ m/J I44 / Yaver A ve. go g .
I I i i am s-eo.sololetal30A$esnie
o .
. CCIIDUIT SIZZS KR CABLES OF VARICUS DIAW.nS When cables of variable dia=sters are pulled into the same conduit, the ccaduit size is deternised by allovir4 the cable areas to occupy not are than !+o percent of the conduit area.
Example: Conduit size required for:
3 single-conductor power cables with outside diameter = 1.26 in.
1 five-conductor control cable with outside diameter =
0 92 in.
Area 1 sir 41e-cceductor power cable = 1.2f+4 sq in.; 3 cables = 3 732 sq in.
Area 1 five-conductor control cable = 0.6/A sq in.
4 396 sq in.
Conduit area = 4 396 + 0.1+o = 10 99 sq in.
From which conduit diameter = 3 74 in.
Referrir4 to Rigid Steel Conduit Data on 30A809, it is noted that a 4-in. conduit would be required.
CABLE BENDI:iG RADII ER PULLI.*G IN CC:EXJIT Cables should have a bending radius equal to the outside diameter nultiplied by the factors given below. In no case should the radius of the bend be less than that obtained by using the mintmm factor and then only if approved by the supervising engineer.
Type Insulation Recocnended Minimm Varnish cambrie Unshielded 9 6
. Shielded 12 12
( Lead covered 12 12 Paper insulated Lead covered 12 12 Polyethylene Unshielded 8 6 Shielded 12 12 i
Rubber Unshielded 8 6 Shielded 12 12 Cross-linked polyethylene Unshielded 9 7 Shielded 14 14 ELECTRICAL STANDARDS CONDUlT SIZES FOR CABLES Un;*lg~ ~ v VARIOUS DIAMETERS
= !+ -l-H-
, DESIGN AND DRAFTING STANDARDS
,,,,g,'.','. M A
,d. U.
_ m a, , , ,,,,,,S.',.
TENNESSEE VALL.EYtwe=,UTH orsion osa O RITY
,,,, Adr. SuSW8? f f D : atComutse0(0 appmoves
$n&.W l W l lb l MNCXVILLC 12-17 4l (G l C l o'l 30A811ai
4 I
( l 4 s m ,rirss 4g W 4 se- wss solcWmy Aq. Reem hole or file lug to rit terminal bhy.k whers O O ""*s==:r-m n f Toper hr site of hvg Y 3C L4rowef metenc WOd~ yuoseboard wthwere of to*irstrawd s-e.
srit ecvdotess. Lsy Rwnere outerjocket I r ~ Pol y ethylene e rksyt essulohen ,s--
may be Anket thretty to broit /
a sheetyonedInestis renveid
.+.
Spike to wrth&1
. -8 s ref a ~,
% l
.. _ . .- _ - . - ~ .
~
t AMilnnef knyth Wsheeth lAstm's t tM strum >Faf enfs of the Wjeckethr be remMd *12 okt met fM ceMr VMf, mesh of ceMr os equ9 ped mth -
the two onefs, and tws! toget/m%
pAnoe neenwy , ..
Wre this imstedate uth one Q - " ~ , Aryer'cPNsold tirirled mer,
{ _ therr soMer ers/re Jiotea Paper' wreapry -
, (h cabors so equpnord)
Wrop with Scokh hen JJ olecMest tape half-topped.
Leed, rubber or Tape should be newpped tightly enough to euciude runds thermoplastkjachd! hs h4e tape, but never stredef or elongated beyerd 23 %.
finot wrop should be oppied mttr mesmum stress to pe n.,t a u sg.
4 f.EAD, RUBBER OR THERMOPLASTIC JACKET wot to se,ie i
ELECTRICAL STANDARDS I
TERMINALS COAXlAL COMMUNICATION CABLE.
M!A~42L T O""' STRAIGHT TERMINATION I
': l= l==l.-.-l
' l {-
" * * " " *" DESIGN ANO DRAFTING STANDARDS
- U';- " '* M"'" "I TENNESSEE VALLEY AUTHORITY orvssioes er assica
- ASE D#Aw/Nat ea4 J00/OJf sw.w.vice acco ....o rs 0&_kk r' "
i g i
'M i
n cowAm onswihestJOAi0n JOA/0JJ Gh -- -
.42 L &. ow t I I ptNO XWLLC
$17 44 l C h (7 h a hfh0l@flRt
m
/* >., l-
' ^, '
-ocr < x~.
A ' ' ' '
. . . . . . .g l
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s z c i, In{8EB@@@@RR@@@gl; p c .=, J -e, s ,e.. ,c o= _tm lh $$$$$$$$$$$
l i =f l / l /
8
/ s /
/ l
/
/ l
/
/ .
7ocru s. l
/
I i y/ c2 l 9'"** *"" l y'- -
' l h d $ $ $h
'i i /C- - - '2 - .I
_ s -
/ rw !
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h 3r ~~~'.'! L y '
- l. sA-
-- -wountow
/ . % * ,,,,_p
/ ,
j --
4 .urt.> oo, -
/
FMNT ELEVATION TERMINATION OF COAX /AL CABLE lf "#
iol-
,4 7j. _3
, END ELEVATION L
_ (' ! - _S
^
N lbn /* l LIST OF MATERIAL 7'
MK DESCRIPTION A [bowy osbestos block I'r8's/Of *(derti as pre ar'o/ Al k 8 Teemensi bloch,12 pent, GE 16E82Ada C Be tuj uC*oj'bross (derit os pre ct tod 8)
O Macher screw brass, No.to.)]s/j *h% att washee E Macher serem brass,Na 10"J2sll*hW wrth her owt ad washee f Machne xtew. brass, Nato 32st/*fM mth her twit att erstner
. ,) G Mxhme serem bross Nato 32sj'RM ad kwkwester-
}' H Seam 4rss Aig
& - - l- } $V J Mbrehng strap. /~s,i's0:9' x spxee t i so-]-
1-l l si' l lt DETAIL A wrcs.-
sca r.i.e i re cabie trem vta, see spee,r,c ersa.<g er trw1vfacturer's type of cow See also 30Aioji.
gj. 2 when cobs entres eau tirormn cwsurt esse ope wy mth oakunt and sehg carspound A-it* ij- if- if- if- ti /d d' ocan av te t .
}
- }h.f"**" tacept es noted 8"'#l"# #^#d" ELECTRICAL STANDARDS DETAIL B y,,, f,,, JUNCTION BOX TERMINAL
- DETAILS
\
r:l-HH-l- H - COAXIAL COMMUNICATION CABLE
['ifi,* * [$"V,*, ,. DESIGN AND DRAFTING STANDARDS TE NNE $ SCC VA Q(7 AUTHORITY
-s.... . .
sast omwwc u. socion * * * * * * * ' '
2'^ -
n counwou omwwa: sosios _q'[_% 6%W_(Qj'y nuovviu E u- 7 44 l c { E l e i t.i30AIO32=o co-o
-a c
c.
J Topee k sise oflug Unrent mektk bred f....................[3 see nok s e;
It % .~4.r;; ;orsmyt se , aunejoew~ ~ ll - ksulohen n , il sounesss tug ws sumuss n sold *rms Art. oro- we ce ti fole lug b rot ferminal when U ',$ pose unso h wm12 strande :-bd '"'"
n 2 s r re suor <and, hens. tur mer be it opplied 6tectly M breid of a short gesundleadisrequiretf.)
- C o)
_g utohonet longs of sheerk wjocW k be removed of r weep nem scorch Na 33 electrical tape hoff*fopard. Tope shovM be wrapped ce64 og epopped wr*pnper MghMy enough k estude veids to, the lope, areppeng. , : - -- - - sur nene streoched v er sered beyerd
- m -~~, 23%. Final s eep should be oppdiref wofh
/ \ m e se m topre.,,,o on.+ng
\ n,s.,ri she sho.,ded e.,de of theair e o.,d pe me casor breid. mesh me r.e er ds. ond war
(&,one .reppe,gcoeles se equay) kermer wrap this t=skd spoice =m are toyv of Nn 22 sold finned more meer ooMee entre sper.
Spke k mthier j'ofcoble.
Leod.rvssee w
( themarkshcJacwm LEAD, RUBBER OR THERMOPLASTIC JACKET Nort:
Apoly hoo! skwty M point of which the polyethhene or sw,yl ensulated cable is k be bon!. Bond the esb/r k desired shape and hold in ponHon unhl cool.
00 not apply heo! to rubber cable.
Net to scale l
e ELECTRICAL STANDARDS TERMINALS
- COAXfAL COMMUNICATION CABLE CURVED TERMINATION
"'~l**I"**I" T I"".I'""I""
. . e4J. .. .. .. ......
DESIGN AND DRAFTING STANDARDS
~ WCa441.
TENNESSE.v.ssom
'e or ers.onE VALLEY AUTHORIT
. ~
- BASE crane'ING: oea 300/033 ewyne pcouwsmoe e ******e
_"'* ' A"4 *
- gyy COMPAN/0N ONAWINC3: JQA/031 ._ , gef& _ _y,,, ,{ Q f}f,',gggg
_ o_: >
u _ --_~ -%m--