METER INSTALLATIONS

Transcription

1 TALE OF CONTENTS Sheet 1 of 2 SECTION INDEX OUTDOOR POLE MOUNTED PRIAMRY METERING STRUCTURE CUSTOMER OWNED UNMETERED D/D LIGHT INSTALLATION PRIMARY METERING 2400 VOLTS SINGLE PHASE MO ONLY PRIMARY METERING 2400 VOLTS SINGLE PHASE WITH CUSTOMER STREET LIGHTING SUSTATION MO ONLY PRIMARY METERING FOR CUSTOMER UG 3 PHASE, 3 & 4 WIRE, 2400/4160 VOLTS, SM 5 FUSING MO ONLY ** PRIMARY METERING, 3 PHASE 3 & 4 WIRE, 2400/4160 VOLTS, SM 5 FUS ING MO ONLY ** PRIMARY METERING 7200 VOLTS SINGLE PHASE MO ONLY ** PRIMARY METERING FOR CUSTOMER UG, 3 PHASE 3 & 4 WIRE, 4 OR 12kV MO ONLY ** PRIMARY METERING FOR CUSTOMER UG, 3 PHASE 4 WIRE, 12KV MO ONLY PRIMARY METERING, 3 PHASE 3 & 4 WIRE, 4 OR 12kV MO ONLY ** PRIMARY METERING FOR CUSTOMER UG, 3 PHASE, 3 WIRE, 4 OR 12kV IL ONLY ** PRIMARY METERING, 3 PHASE, 4 WREI, 4 OR 12Kv IL ONLY ** PRIMARY METERING, FOR CUSTOMER UG, 3 PHASE, 4 WIRE, 4 OR 12kV IL ONLY ** PRIMARY METERING FOR CUSTOMER UG 3 PHASE 4 WIRE, 25kV MO ONLY PRIMARY METERING, 3 PHASE, 3 WIRE, 34.5kV MO ONLY PRIMARY METERING, 3 PHASE, 4 WIRE, 34.5kV MO ONLY PRIMARY METERING, 3 PHASE, 3 WIRE, 34.5kV IL ONLY PRIMARY METERING, 3 PHASE, 4 WIRE, 34.5kV IL ONLY PRIMARY METERING, 3 PHASE, 3 WIRE, 69kV MO ONLY PRIMARY METERING, 3 PHASE, 3 WIRE, 69kV IL ONLY PRIMARY METERING, 3 PHASE, 4 WIRE, 69kV IL ONLY AMI/AMR INSTALLATION GENERAL INFORMATION CLEARANCE REQUIRE MENTS AMI/AMR INSTALLATION ROUTER AND WOOD POLE MOUNTING RACKET AMI/AMR INSTALLATION ROUTER WOOD POLE MOUNTING WITH SEC ONDARY ONLY REV. DATE: 10/02/17

2 Sheet 2 of 2 AMI/AMR INSTALLATION ROUTER WOOD POLE WITH TRANS FORMER AND SECONDARY AMI/AMR INSTALLATION COLLECTOR AND WOOD POLE MOUNTING RACKET AMI/AMR INSTALLATION COLLECTOR WOOD POLE MOUNTING WITH SECONDARY ONLY AMI/AMR INSTALLATION COLLECTOR WOOD POLE MOUNTING WITH TRANSFORMER AMI/AMR INSTALLATION COLLECTOR SINGLE POLE-TOP AN TENNA WOOD POLE AMI/AMR INSTALLATION COLLECTOR FOUR POLE-TOP ANTEN NAS WOOD POLE AMI/AMR INSTALLATION FUSED DISCONNECT SWITCH FOR ROUTER INSTALLATIONS AMI/AMR INSTALLATION FUSED DISCONNECT SWITCH FOR COLLECTOR INSTALLATIONS AMI/AMR INSTALLATION POLE-TOP ANTENNA ARRESTER CONNECTIONS REV. DATE: 10/02/17

3 Outdoor Pole Mounted Sheet 1 of 1 GENERAL Standard installations of secondary and primary pole mounted metering installations are specified in this section. 1. Secondary Installations Secondary pole mounted metering installations are normally customer owned. This type of installation is particularly applicable to farm distribution centers. 2. Primary Installations Primary pole mounted metering installations may be either Company owned or customer owned. These installations are generally applicable to large light and power loads. A. Company Owned If the station being primary metered is to be owned by Ameren, all necessary equipment will be furnished and installed by Ameren.. Customer Owned (For Missouri) 1. If the station being primary metered is to be owned by the customer, the customer must furnish and install the following equipment. This equipment shall be installed in accordance with appropriate Ameren Primary Metering Standards. a. Pole. b. Pole framing and steps. c. Switches. d. Lightning arresters. e. All primary wiring including fiber conduit when required, except that Ameren will connect the customer s primary leads to the supply conductors and to the current and potential transformers. The customer must leave sufficient lengths of wire for making these connections. f. Secondary wiring when required; Ameren will make connections to Secondary Supply. The customer must leave sufficient lengths of wire for making these connections. 2. Ameren will furnish and install the following equipment, and will complete metering connections. a. Primary or secondary supply conductors with deadend devices. b. Devices to connect customer s primary or secondary leads to the supply conductors. c. Current, potential transformers, and bracket. d. Devices to connect customer s primary wiring to current and potential transformers. e. Meter enclosure, meter, and mounting framework. f. All metering wiring including conduit to connect current and potential transformers to the meter. C. Ameren s Meter Department must be notified of job as early as possible to insure availability of equipment to be provided; includes metering enclosures and transformers cluster mounts or units, are shop wired. REV. NO: 2 REV. DATE: 09/22/11

4 Customer Owned Unmetered D/D Light Installation Sheet 1 of 2 AMEREN SERVICE WIRES SEE DIST. STD FOR MINIMUM HEIGHT OF WIRE AOVE GROUND AT THE POINT OF GREATEST SAG. 8 ALLOW 15 OF SERVICE CALE FOR CONN. M LOCATE 15 FROM TOP OF POLE & 5 TO SIDE OF CENTER LINE OF RACKET. P GROUND WIRE TO E PROTECTED IF REQ D. Y AUTHORITIES. NOTES: 1. Customer to notify company of location of service pole, size of lighting load, and if overhead conductor, size of wire and length of span to next pole. Company will then determine pole size and guying requirements and notify customer. Guying to be avoided by using self sustained poles where possible. If guying is required, customer will supply guy and anchor in traffic free location. 2. Customer to provide a fused disconnect switch in a suitable watertight enclosure. This device shall meet all requirements of the National Electrical Code and National Electrical Safety Code and be approved by local inspection authorities. The enclosure is to be provided with a provision for locking. The enclosure shall be grounded. 3. All construction to comply with the National Electrical Code or National Electrical Safety Code as applicable. 4. If customer installs a light on this pole, such light shall clear Ameren service wires by not less than 24 inches. REV. NO: 2 REV. DATE: 12/06/99 REAFFIRMED DATE: 10/21/10

5 Customer Owned Unmetered D/D Light Installation Sheet 2 of 2 MATERIAL PROVIDED IN PLACE AND OWNED Y AMEREN Stnd. / Stk. No. Description A Secondary Clevis 1 MATERIAL PROVIDED IN PLACE AND OWNED Y CUSTOMER Stnd. / Stk. No. Description 1 D Pole 1 E Grounding Lug 1 F Secondary Clevis 6 G Distribution Wire H Solderless Connector 6 J Metallic Conduit K Service Entrance Cable L Conduit Straps M Entrance Caps 2 N Connectors (Water Tight) 2 P Ground Wire Q Staples 2 R Fused Disconnect SW. Raintight 1 S Ground Rod 1 T Ground Rod Lug 1 1 U ** ** Guy & Anchor (If Req d.) 1 REV. NO: 2 REV. DATE: 12/06/99 REAFFIRMED DATE: 10/21/10

6 Primary Metering 2400 Volts Single Phase Sheet 1 of 2 MISSOURI ONLY Fused Switch O Supply N L.A. To Customer 5 A HH F Load 12 OO C Source L H1 X1 CT H2 X2 H G F M 36 AA D Green lue H1 X1 PT H2 X2 White Yellow (C.T. s Above P.T. s) * * II 24 LL,MM,NN K 48 JJ 18 MIN. CC, FF DD EE,KK 3 MIN. 5 6 MAX. DD 12 MAX. 8 MIN. E Meter Socket Wiring Diagram * White Dot Polarity Mark REV. NO: 8 REV. DATE: 09/23/11

7 Primary Metering 2400 Volts Single Phase Sheet 2 of 2 MISSOURI ONLY NOTES: 1. Ground instrument transformer cases. 2. Metering equipment should be within reach of a 29 extension ladder. 3. If metered primary exceeds 2 spans, additional arresters must be installed on first pole beyond meter pole. 4. When meter pole is on customer property, a disconnect switch shall be provided one span before. 5. Secondary wire lead on meter cluster is 15ft. standard length. For taller poles, special order meter cluster with longer lead to meet max. height requirement for connection box. NORMALLY FURNISHED Y CUSTOMER Stnd. / Stk. No. Description A Double D.E. on Pole Switch Ass y (Fuse size by Engr.) 1 C Arrester 3kV 1 D *** Pole 1 E Grounding Unit 1 F Wire, #2 Cu Covered, S.D. (Ft.) 20 G Conduit 2 8 H Iron Hanger (ft.) 5 J Staple 8 K Clevis, Secondary 2 L Cover Cutout 1 M Wire, #6 Cu., are S.D. 35 NORMALLY FURNISHED Y AMEREN Stnd. / Stk. No. Description AA Metering Ass y Meter Socket 1 CC Conduit 1, Flex 20 DD Staple, 1 1/2 3 EE Fitting Wire #12 Cu. 600V Type TW lue 30 FF Wire #12 Cu. 600V Type TW Green Wire #12 Cu. 600V Type TW Yellow Wire #12 Cu. 600V Type TW White 30 GG 285 Inst Primary Metering HH DEC*W Clamp Deadend 2 II ox, Secondary connection 1 JJ Screw, Hex Head Cap, 3/8 x2 2 KK Screw, Wood, #14, 3, Rnd. 4 LL Cord Hrd Srv 14/2 Cu 600V 20 MM Conduit PVC Split 2 x10 1 NN Iron, Hanger, Galv., 3/4 wide 2 OO PG* Clamp, P.G. (Std ) 4 REV. NO: 8 REV. DATE: 09/23/11

8 Primary Metering 2400 Volt Single Phase With Customer Street Lighting Substation Sheet 1 of 3 MISSOURI ONLY N K Z O1 L P O O1 PHASE N1 20 L1 20 #4 ACSR ARE 6 #4ACSR POLY. 36 O Fused Switch W 12 Supply N L.A. To Customer Q (P.T. s Above C.T. S) M1 48 H1 H2 S R 24 X1 PT X2 AA,,CC M G V C, F 5 MIN. H Green lue H1 H2 X1 X2 CT White Yellow X Y T D 12 0 MAX. E A I 8 0 MIN. 3 0 MIN. 5 6 MAX. * White Dot Polarity Mark U Meter Socket Wiring Diagram REV. NO: 6 REV. DATE: 05/01/12

9 Primary Metering 2400 Volt Single Phase With Customer Street Lighting Substation Sheet 2 of 3 MISSOURI ONLY NOTES: 1. This standard shows the typical equipment arrangement for a pole mounted streetlighting substation. For installations where this arrangement cannot be used, the following requirements must be considered in arranging the equipment in order that adequate climbing space is provided for Ameren Personnel who must make attachments and operate switch on the substation poles. a. One side of the pole must be clear of equipment, conduit, and cables. b. olts extending thru the pole into the climbing space should be cut off so that they are not a hazard in climbing the pole. c. Pole steps should be installed as outlined in Ameren Distribution Std , Sheets 1 & Ground instrument transformer cases. 3. Ameren shall install a fused switch on take off pole for sectionalizing or disconnecting. This switch will be left open until customer requests Ameren to close it. 4. Ameren shall connect customer s transformer primary neutral lead to common neutral. Ameren shall also connect customer s driven ground to common neutral. 5. Fuse sized by Ameren Engineer. NORMALLY FURNISHED Y AMEREN Stnd. / Stk. No. Description A Meter Enclosure Metering Cluster Ass y. 1 C Conduit 1, Flex. 20 D Staple, 1 1/2 3 E Fitting Wire, #12 Cu. 600V Type TW lue 30 F Wire, #12 Cu. 600V Type TW Green Wire, #12 Cu. 600V Type TW Yellow Wire, #12 Cu. 600V Type TW White 30 G ox, Secondary connection K DEC*W Clamp Deadend Install Pri. Metering 1 H Screw, Hex Head Cap, 3/8 x2 2 I Screw, Wood, #14, 3, Rnd. 4 AA Cord, Hrd Srv, 14/2 Cu, 600V Conduit, PVC Split 1 CC Iron Hanger, Galv., 3/4 wide (ft.) 2 REV. NO: 6 REV. DATE: 05/01/12

10 Primary Metering 2400 Volt Single Phase With Customer Street Lighting Substation Sheet 3 of 3 MISSOURI ONLY NORMALLY FURNISHED Y CUSTOMER Stnd. / Stk. No. Description L Clevis, Sec., Insulator 2 M Mounting Unit, Transf. C 1 N Double Deadend on Pole 1 5 O Switch, Fused, 15kV, 100A 1 P Lightning Arrester, 3kV 1 Q P.E. Cell Control Unit, KW 1 R Primary Oil Switch 1 S Transformer 1 T Control Cabinet 1 U Street Light Cable (Ft.) V Pole Step 9 X Grounding Unit 1 Y Pole 1 Z rkt., Sgl. Ext., w/clevis 1 L Cover Cutout 1 M Guard Clam shell Wildlife 1 N Wire, #2 Cu., Covered S.D. 35 O Wire, #6 Cu., are S.D. 35 REV. NO: 6 REV. DATE: 05/01/12

11 Primary Metering For Customer U.G., 3 Phase 3W & 4W 2400 / 4160 V, SM 5 FUSING ** Sheet 1 of 3 MISSOURI ONLY WIRE WIRE Z L, O MM X M C F,G H1 W J LL 4 MIN. 6 MAX. D 20 QQ V A I E SWITCH ROD GROUND QQ J,K U /2 (P.T.S AOVE C.T.S) Y 15 o AA NN,OO,PP L CONDUIT J,K H M S SEE RACKET DETAIL J,K 4 R CC EE 18 MIN. DD,FF GG P C OF METER 12 MAX. 8 MIN. HH,II T TO SWITCH GROUND RACKET DETAIL 5 6 MAX. 3 MIN. REV. NO: 13 REV. DATE: 09/23/11

12 Primary Metering For Customer U.G., 3 Phase 3W & 4W 2400 / 4160 V, SM 5 FUSING ** Sheet 2 of 3 NOTE: MISSOURI ONLY 1. When meter pole is on customer property, switch shall be provided one span before. 2. Secondary wire lead on meter cluster is 15ft. standard length. For tall poles, special order meter cluster with longer lead to meet max. height requirement for connection box. 3. Terminator mounting bracket is either Aluma Form (T EM 1 6 PA 35 UE) or Hubbell (CT EM 1 6PS 35 UE). It is no longer stocked by Ameren. NORMALLY PROVIDED Y CUSTOMER Stnd. / Stk. No. Description ** A Switch, 15 kv, Group Operated Wire, 4/0 Cu, Covered S.D. (ft.) C PG* Clamp, Parallel Groove ( See Std ) 3 3 D Crossarm, E Mounting, Fuse, 400 A 3 3 F Lug, Compression, 4/0 Cu. 6 6 G olt, Everdur, 1/2 x 2 1/ H racket, Mounting, Terminator 1 1 I olt, Machine, 1/2 x J olt, Machine, 5/8 x K Washer, Square 7 7 L Arrester, Lightning, 3 kv, Riser Pole 6 6 M Clamp, Hot LIne 6 6 N Conduit, Sch. 80, O racket, Crossarm Mounting 3 3 P racket, Cable 3 3 Q end 5, 36 Rad. 1 1 R Cable, 15 kv, 750 Al. (ft.) S Terminator, 15 kv, 750 Al. 3 3 T Grounding Unit 1 1 U Refill (Sized by Engineering) 3 3 V Connector, 2 olt, 4/0 3 3 W Crossarm, 8, Double 1 1 X Deadend, 12 kv 4 3 Y ILW*W Wire, 5 kv Z 02 Pole 1 1 A Conduit, Sch. 40, Iron Hanger (ft.) 6 6 C racket Standoff, D olt Double Arming, 5/8 x E Nut 5/8 Jam 4 4 F Washer Curved, 3/4 8 8 G Strap Conduit, H Wire, #6 Cu., are S.D. (ft.) REV. NO: 13 REV. DATE: 09/23/11

13 Primary Metering For Customer U.G., 3 Phase 3W & 4W 2400 / 4160 V, SM 5 FUSING ** Sheet 3 of 3 MISSOURI ONLY NORMALLY PROVIDED Y AMEREN Stnd. / Stk. No. Description ** AA Mounting, Primary Metering ox, Secondary Connection 1 1 CC Screw, Cap, 3/8 x DD Conduit, Flex EE Staple 3 3 FF MTR SHOP Wire Pack of 10 # 12, Color Coded (ft.) GG Fitting 2 2 HH Socket, Meter, 600 V, 3 Phase, 4 wire Socket, Meter, 600 V, 3 Phase, 3 wire 1 II Screw, Wood #14, 3, Rnd 4 LL DEC*W Clamp, D.E. 4 MM PG* Clamp, P.G. (Neutral) ( See Std ) 1 NN Cord, Hrd Srv, 14/2; 600V. Cu OO Conduit, PVC Split, 2 x PP Iron Hanger, Galv., 3/4 wide (ft.) 2 2 QQ Guard, Clam shell, Wildlife Install Primary Metering 1 1 SOURCE A C SOURCE A C N PT 1 PT 2 PT 1 PT 2 PT 3 CT 1 CT 2 A C LOAD CT 1 CT 2 CT 3 A C N LOAD 3 WIRE 4 WIRE REV. NO: 13 REV. DATE: 09/23/11

14 Primary Metering, 3 Phase 3 W & 4 W 2400 / 4160 V, SM 5 FUSING MISSOURI ONLY ** Sheet 1 of MM 6 S CUSTOMER PRIMARY C T L, O AMEREN PRIMARY M C F,G U A J U 4 MIN. 6 MAX. 12 D QQ 12 Q R 12 E I QQ J,K P /2 ( C.T.S AOVE P.T.S ) AA NN J,K 4 WIRE WIRE CC DD,FF EE 15 o SWITCH ROD 18 MIN. 12 MAX. 8 MIN. GG HH, II CONDUIT GROUND C OF WINDOW 3 0 MIN. 5 6 MAX. N REV. NO: 11 REV. DATE: 05/01/12

15 Primary Metering, 3 Phase 3 W & 4 W 2400 / 4160 V, SM 5 FUSING ** Sheet 2 of 3 MISSOURI ONLY NOTE : 1. When meter pole is on customer property, switch shall be provided one span before. 2. Secondary wire lead on meter cluster is 15 ft. standard length. For tall poles, special order meter cluster with longer lead to meet maximum height requirement for connection box. NORMALLY PROVIDED Y CUSTOMER Stnd. / Stk. No. Description ** A Switch, 15 kv, Group Operated Wire, #2 Cu, Covered S.D. (ft.) C PG* Clamp, Parallel Groove ( See Std ) 6 6 D Crossarm, E Mounting, Fuse, 400 A 3 3 F Lug, Compression, 4/0 Cu. 6 6 G olt, Everdur, 1/2 x 2 1/ I olt, Machine, 1/2 x J olt, Machine, 5/8 x K Washer, Square 5 5 L Arrester, Lightning, 3 kv 3 3 M Clamp, Hot LIne 3 3 N Grounding Unit 1 1 O racket, Crossarm Mounting 3 3 P Refill (Sized by Engineering) 3 3 Q Arm, Training, Fiberglass, R Connector, 2 olt, 4/0 3 2 S Crossarm, 10 Double 1 1 T Deadend, 12 kv, Double 8 6 U Wire, #6 Cu are S.D. (ft.) Pole 1 1 REV. NO: 11 REV. DATE: 05/01/12

16 Primary Metering, 3 Phase 3 W & 4 W 2400 / 4160 V, SM 5 FUSING ** Sheet 3 of 3 NORMALLY PROVIDED Y AMEREN Stnd. / Stk. No. Description ** AA Mounting, Primary Metering ox, Secondary Connection 1 1 CC Screw, Cap, 3/8 x DD Conduit, Flex, EE Staple 3 3 FF MTR SHOP Wire Pack of 10 # 12, Color Coded (ft.) GG Fitting 2 2 HH Socket, Meter, 600V, 3 Phase, 4 Wire Socket, Meter, 600V, 3 Phase, 3 Wire 1 II Screw, Wood, # 14, 3, Rnd. 4 LL DEC*W Clamp, D.E. 8 MM PG* Clamp, P.G. (Neutral) ( See Std ) 1 NN Cord, Hrd Srv, 14/2 Cu, 600V OO Conduit, PVC Split 1 1 PP Iron Hanger, Galv., 3/4 wide (ft.) 2 2 QQ Guard, Clam shell, Wildlife Install Primary Metering 1 1 MISSOURI ONLY SOURCE C A SOURCE C A PT 1 CT 1 PT 1 CT 1 POLARITY MARK PT 2 CT 2 PT 2 CT 2 PT 3 CT 3 CA LOAD LOAD 3 WIRE WIRE REV. NO: 11 REV. DATE: 05/01/12

17 Primary Metering 7200 Volt Single Phase ** Sheet 1 of 2 MISSOURI ONLY Fused Switch (5) O Supply N L.A. To Customer (P.T. s Above C.T. S) F Q 5 AA (4) LOAD 12 D VV 36 E A AA SOURCE P H1 H2 X1 X2 PT H1 H2 WHITE DOT POLARITYMARK HH NN PP QQ RR UU FF GG EE 18 C 24 C K G,(6) JJ O II WW 48 Green lue X1 X2 CT White Yellow CC L OO,SS KK,LL MM J, M 12 MAX 8 MIN 18 MIN. (8) H, M Meter Socket Wiring Diagram DD,TT (5) 3 MIN 5 6 MAX Double Deadend Single Deadend NOTES: 1. Ground all instrument transformers. 2. If metered primary exceeds two spans, additional pole arresters must be installed on first pole beyond meter pole. 3. Ground clearance 4. arriers shall be installed for protection against vehicular traffic if necessary. 4. Overhead service shown by broken line. 5. Rotate G & DD to give best clearance and climbing space. 6. When meter pole is located on customer property, disconnect switches shall be provided one span before. 7. Secondary wire lead on meter cluster is 15ft. standard length. For tall poles, special order meter cluster with longer lead to meet max. height requirement for connection box. 8. Primary connections shall be 18ft. min. above the ground. REV. NO: 8 REV. DATE: 05/01/12

18 Primary Metering 7200 Volt Single Phase ** Sheet 2 of 2 Stnd. / Stk. No. Description ** NORMALLY FURNISHED Y CUST. A Double D.E. on Pole D.E. on Pole SW, Ass y., (Fuse Sized y Engr.) 1 1 C Wire, #2 Cu Covered, SD, (ft.) D Lightning Arr., 9kV 1 1 E Ins., Standoff, F 02 Pole 1 1 G Grounding Unit 1 1 H Conduit, 2 Pl., Slotted 20 J Guard, 3 Metal Cable 1 K Termination, 15kV 1 L Cable, 15kV #2 CN., Ft. 30 M Iron, Hanger 10 O Insulator, Clevis 1 1 P Cover Cutout 1 1 Q Wire, #6 Cu are S.D. (ft.) NORMALLY FURNISHED Y AA DEC*W Clamp Deadend Conduit PVC, Split 2 x CC Iron Hanger, Galv., 3/4 wide (ft.) 2 2 DD Meter Enclosure 1 EE Transformer, Current 1 FF Transformer, Potential 1 1 GG racket, Trfrmr. Mtg. 1 1 HH Connector, Cable #8 2 II SDEA*W Clamp Secondary Deadend Automatic 1 1 JJ Washer, 3 Curved (Nested) 4 4 KK Conduit 1, Flex LL Staple, 1 1/2 3 3 MM Fitting 2 2 NN Wire #12 Cu 600V Type TW lue OO ox, Secondary connection 1 1 PP Wire #12 Cu 600V Type TW Green QQ Wire #12 Cu 600V Type TW Yellow RR Wire #12 Cu 600V Type TW White SS Screw, Hex Head Cap, 3/8 x2 2 2 TT Screw, Wood, #14, 3, Rnd, 4 4 UU Cord Hrd Srv 14/2 Cu 600V 20 VV PG* Clamp, P.G. (Std ) 2 WW PG* Clamp, P.G., Neutral (Std ) Install Pri. Metering 1 1 REV. NO: 8 REV. DATE: 05/01/12

19 Primary Metering For Customer U.G., 3 Phase 3W & 4W 4 or 12 kv ** Sheet 1 of 3 MISSOURI ONLY 6 L, O WIRE A A Y W M C F,G MM I1 V 3 WIRE A A J LL 4 MIN. 6 MAX. A D 20 6 J,K 2 H1 U M (P.T.S AOVE C.T.S) QQ SWITCH ROD QQ E, O 5 Z 15 o AA NN,OO,PP J,K 5 L CONDUITS GROUND H M S SEE RACKET DETAIL J,K 4 R T CC EE DD, FF GG HH,II TO SWITCH GROUND P RACKET DETAIL 12 MAX. 8 MIN. C OF WINDOW 3 MIN. 5 6 MAX. 18 MIN. ENG:WYW REV. NO: 15 REV. DATE: 11/21/16

20 Primary Metering For Customer U.G., 3 Phase 3W & 4W 4 or 12 kv ** Sheet 2 of 3 NOTES: MISSOURI ONLY 1. When meter pole is on customer property, switch shall be provided one span before. 2. Secondary wire lead on meter cluster is 15ft. standard length. For tall poles, special order meter cluster with longer lead to meet max. height requirement for connection box. 3. Terminator mounting bracket is either Aluma Form (T EM 1 6 PA 35 UE) or Hubbell (CT EM 1 6 PA 35 UE). It is no longer stocked by Ameren. NORMALLY PROVIDED Y CUSTOMER 3 Stnd. / Stk. No. Description ** A Switch, 15 kv, Group Operated Wire, #2 Cu, Covered, S.D. (ft.) C HLC*W Clamp, Hot line PG* Clamp, Parallel Groove ( See Std ) D Crossarm, E Switch, 15 kv, 100A Switch, 15 kv, 200A 3 3 F Lug, Compression, # 2 Cu G olt, Everdur, 1/2 x 2 1/ H racket, Mounting, Terminator J olt, Machine, 5/8 x K Washer, Square L Arrester, Lightning, ( 3 or 10 kv ) M Clamp, Hot Line N Conduit, Sch 80, O racket, Crossarm Mounting P racket, Cable Q Conduit, Sch 40, R Cable, 15 kv # Cable, 15 kv 4/ S Terminator, 15 kv, # Terminator, 15 kv, 4/0 3 3 T Grounding Unit U Connector, Split olt, # 2 Cu V Crossarm, Double W Deadend, 12kV Y 02 Pole Z Connector, Cable to Flat, #6 2/ A end 4, 36 Rad Iron Hanger (Ft.) C racket Standoff, D olt Double Arming, 5/8 x E Nut 5/8 Jam F Washer Curved, 3/ G Strap Conduit, H Cover Cutout I Wire, #6 Cu are, S.D. (ft) ENG:WYW REV. NO: 15 REV. DATE: 11/21/16

21 Primary Metering For Customer U.G., 3 Phase 3W & 4W 4 or 12 kv ** Sheet 3 of 3 MISSOURI ONLY NORMALLY PROVIDED Y AMEREN Stnd. / Stk. No. Description ** AA Mounting, Primary Metering ox, Secondary Connection CC Screw, Cap, 3/8 x DD Conduit, Flex, EE Staple FF MTR SHOP Wire Pack of 10 # 12, Color Coded (ft.) GG Fitting HH Socket, Meter, 600V, 3 Phase, 4 Wire Socket, Meter, 600V, 3 Phase, 3 Wire 1 1 II Screw, Wood, # 14, 3, Rnd LL DEC*W Clamp D.E MM PG* Clamp, P. G. (Neutral) ( See Std ) Install Primary Metering NN Cord, Hrd Srv, 14/2; 600V. Cu OO Conduit, PVC Split, 2 x PP Iron Hanger, Galv., 3/4 wide (ft.) QQ Guard, Clam Shell, Wildlife SOURCE A C SOURCE A C N PT 1 PT 2 PT 1 PT 2 PT 3 CT 1 CT 2 A C LOAD CT 1 CT 2 CT 3 A C N LOAD 3 WIRE 4 WIRE ENG:WYW REV. NO: 15 REV. DATE: 11/21/16

22 Primary Metering For Customer U.G., 3 Phase 4W 4 or 12 kv, SM 5 Fusing, 400 Amp Sheet 1 of 4 MISSOURI ONLY 10 6 M 6 J L F F A F 4 MIN. 6 MAX. F N,O,G,H V,W,X N 2 K,P,U,C,D C,D G 20 1/2 E HH,UU,S 5 R V,W,X GG PTs Above CTs Q GG,Q PP,QQ,RR F 5 1 Y 1 V,W,X L1 J1 Z E1,F1,H1,I1,J1,K1 DD 12 Max 8 Min JJ 18 MIN MM,NN 3 Min 5 6 Max D1,G1 A1 REV. NO: NEW REV. DATE: 03/10/16

23 Primary Metering For Customer U.G., 3 Phase 4W 4 or 12 kv, SM 5 Fusing, 400 Amp Sheet 2 of 4 MISSOURI ONLY NOTES: 1. When meter pole is on customer property, switch shall be provided one span before. 2. Secondary wire lead on meter cluster is 15ft. standard length. For tall poles, special order meter cluster with longer lead to meet max. height requirement for connection box. 3. Terminator mounting bracket is either Aluma Form (T EM 1 6 PA 35 UE) or Hubbell (CT EM 1 6 PA 35 UE). It is no longer stocked by Ameren. 4. Fuse sized by Ameren Engineer. 5. Ground all instrument transformers, arresters, and mounting assembly to the grounding unit. 6. Install barriers for protection against vehicular traffic where necessary. 7. Maintain a minimum of 15 clearance between 15kV phases or phase to ground. 8. Maintain minimum of 5 clearance between the aluminum mounting platform and the crossarm. 9. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 19 between the energized lateral and vertical conductors and the pole on non climbing side of the pole. Reference from NESC, Rule 239E. 10. Maintain a minimum of 40 between any part of the aluminum mounting platform and conductors of 4 or 12 kv underbuild. 11. For wire color coding on PT and CT secondaries, refer to system meter drawings. 12. If metering structure is located within a substation, the metering and L.A. ground wires must be connected to the substation ground mat. 13. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance. REV. NO: NEW REV. DATE: 03/10/16

24 Primary Metering For Customer U.G., 3 Phase 4W 4 or 12 kv, SM 5 Fusing, 400 Amp Sheet 3 of 4 NORMALLY PROVIDED Y CUSTOMER Stnd. / Stk. No. Description A 02 Pole Switch, 15kV, Group Operated 1 C Switch, 15kV, SM 5 Fuse Mounting, 400A D Fuse Refill E Wire, #2 Cu, Covered, S.D. (ft.) 20 F Wire, 500 Cu, Covered, S.D. (ft) 30 G Wire, #4 Cu, Covered, S.D. (ft) 15 H Clamp, Hot line 500kCMIL Cu Main/#4 Cu Tap I PG* Clamp, Parallel Groove ( See Std ) 3 J Crossarm, Fiberglass, 10 1 K Crossarm, Dble Wood, 10, Vertically Mount 1 L Single Deadend on Pole, 12kV 1 M Deadend on F/G Arm, 10 1 N Arrester, Terminal Pole, 9kV 3 O NEMA racket Arrester 3 P olt, Everdur/ronze, ½ x 2 ½ 12 Q Lug, Compression, 500 Cu 18 R PG Connector, 2 olt Type, 500 Cu 3 S Connector, Cable to Flat, #8 Sol 2/0 Str, One Eyebolt Type, ronze T Connector, Split olt, #2 Cu 3 U olt, Machine, ½ x 5 12 V olt Machine, ¾ x 12 8 W Washer, ¾, SQ 8 X Washer, ¾ Double Coil 8 Y racket, Mounting, Terminator 1 Z Neutral Deadend 1 A Grounding Unit #2 Cu Terminator, 15kV, 750 Cu 3 C racket, Cable, 750 Cu 3 D Conduit, 5, Sch80 10 E Conduit, 5, Sch40 20 F racket, Standoff, 12 3 G end, 5, 36 Rad 1 H Iron Hanger (ft) 6 I olt, Dble Aiming, ⅝ x 18 3 J Nut Jam, ⅝ 3 K Strap, Conduit, 5 3 L Cable, UG, 15kV kcmil Cu 35 6 REV. NO: NEW REV. DATE: 03/10/16

25 Primary Metering For Customer U.G., 3 Phase 4W 4 or 12 kv, SM 5 Fusing, 400 Amp Sheet 4 of 4 NORMALLY PROVIDED Y AMEREN Stnd. / Stk. No. Description AA Mounting, Primary Metering ox, Secondary Connection 1 CC Screw, Cap, 3/8 x 2 2 DD Conduit, Flex, 1 20 EE Staple FF MTR SHOP Wire Pack of 10 # 12, Color Coded (ft.) GG MTR SHOP Instrument Current Transformer HH MTR SHOP Instrument Potential Transformer 3 II Fitting 2 JJ Socket, Meter, 600V, 3 Phase, 4 Wire 1 KK Screw, Wood, #14, 3, Rnd. 4 MM Connector, Split olt, ronze, #2 or #4Cu 1 NN Wire, #6 Cu Poly Covered 5 OO 286 Install Primary Metering 1 PP Cord, Hrd Srv, 14/2 Cu, 600V 20 QQ Conduit, PVC Split, 2 x10 1 RR Iron Hanger, Galv., 3/4 wide (ft.) 2 UU Guard, Clam Shell, Wildlife 3 SOURCE A C N PT 1 PT 2 PT 3 CT 1 CT 2 CT 3 A C N LOAD 4 WIRE REV. NO: NEW REV. DATE: 03/10/16

26 Primary Metering, 3 Phase 3W & 4W 4 or 12 kv ** Sheet 1 of 4 MISSOURI ONLY MM 6 CUSTOMER PRIMARY LL L, O H AMEREN PRIMARY F,G M C J U T S C 4 MIN. 6 MAX. D 20 A 6 J,K 2 QQ QQ Q E, O V 5 P (C.T.S AOVE P.T.S) AA R NN,OO,PP 4 WIRE A A J,K CC 3 WIRE A A DD 12 MAX. 8 MIN. 18 MIN. SWITCH ROD EE,FF 15 o 3 N GG HH, II CONDUIT GROUND C OF METER 3 MIN. 5 6 MAX. REV. NO: 12 REV. DATE: 09/23/11

27 Primary Metering, 3 Phase 3W & 4W 4 or 12 kv ** Sheet 2 of 4 MISSOURI ONLY 1. When meter pole is on customer property, switch shall be provided one span before. 2. Secondary wire lead on meter cluster is 15 ft. standard length. For tall poles, special order meter cluster with longer lead to meet maximum height requirement for connection box. 3. Switch is to be operated with rotating or reciprocating control rod accessible from ground level. Control rod to be furnished with insulating section above handle. NORMALLY PROVIDED Y CUSTOMER Stnd. /Stk. No. Description ** A Switch, 15 kv, Group Operated Wire, #2 Cu, Covered, S.D. (ft.) C PG* Clamp, Parallel Groove ( See Std ) D Crossarm, E Switch, 15 kv, 100A Fused Switch, 15 kv, 200 Amp. Fused 3 3 F Lug, Compression, # 2 Cu G olt, Everdur, 1/2 x 2 1/ H Clamp, Hot Line J olt, Machine, 5/8 x 12 Galv K Washer, Square Galv L Arrester, Lightning, (3kV or 10kV) M Wire, #6 Cu, are, S.D. (ft.) N Grounding Unit O racket, Crossarm Mounting P Connector, Split olt, # 2 Cu Q Arm, Training, Fiberglass R Connecter, Cable to Flat, #6 2/ S XXX Pole ( Size & Class T..D. ) T Deadend, Double, 12kV U Crossarm,10 Double V Cover, Cutout, 100 Amp Cover, Cutout, 200 Amp 3 3 REV. NO: 12 REV. DATE: 09/23/11

28 Primary Metering, 3 Phase 3W & 4W 4 or 12 kv ** Sheet 3 of 4 NORMALLY PROVIDED Y AMEREN Stnd. / Stk. No. Description ** AA Mounting, Primary Metering ox, Secondary Connection CC Screw, Cap, 3/8 x DD Conduit, Flex, EE Staple FF MTR SHOP Wire Pack of 10 # 12, Color Coded (ft.) GG Fitting HH Socket, Meter, 600V, 3 Phase, 4 Wire Socket, Meter, 600V, 3 Phase, 3 Wire 1 1 II Screw, Wood, #14, 3, Rnd LL DEC*W Clamp D.E MM PG* Clamp P.G. (Neutral) ( See Std ) 1 1 NN Cord Hrd Srv 14/2 Cu 600V OO Conduit PVC Split 2 x PP Iron, Hanger, Galv., 3/4 wide (ft) QQ Guard, Clam shell, Wildlife Install Primary Metering REV. NO: 12 REV. DATE: 09/23/11

29 Primary Metering, 3 Phase 3W & 4W 4 or 12 kv ** Sheet 4 of 4 SOURCE C A SOURCE C A PT 1 CT 1 PT 1 CT 1 POLARITY MARK PT 2 CT 2 PT 2 CT 2 PT 3 CT 3 CA LOAD LOAD 3 WIRE 4 WIRE REV. NO: 12 REV. DATE: 09/23/11

30 Primary Metering For Customer UG 3 Phase 3 Wire 4 thru 15 kv ** Sheet 1 of 4 ILLINOIS ONLY E T G Source KK HH O, P CC, CC, L 3 0 H SS AA, FF, NN S GG, TT C, D AAA M R, Q, U Q C.T , EEE 6 0 CCC QQ DDD, FFF,HHH, III F, I, J V, W, X, Y DDD, GGG S A Min 8 to Lowest racket MIN. 5 6 MAX. K Grounding DCS REV. NO: 7 REV. DATE: 12/15/15

31 Primary Metering For Customer UG 3 Phase 3 Wire 4 thru 15 kv ** Sheet 2 of 4 ILLINOIS ONLY NOTES: 1. Grounding all instrument transformers, arresters, and mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole as per DCS ; maintain a minimum of 19 between the energized lateral and vertical conductors and the pole on non climbing side of the pole as per DCS If disconnect switches are required, the switch may be installed on adjacent poles. 5. For wire color coding on PT and CT secondaries, refer to system metering drawings. 6. If metering structure is located within a substation, the metering and arresters ground wires must be connected to the substation ground mat. 7. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance. Install arresters to load side on the adjacent pole if multiple span exposure on the load side exists and arresters may be installed on adjacent poles. 8. Riser conduit cover is for 2 4 conduit. Stnd. / Stk. No. Description(Provided and Installed by Ameren IL) ** A Meter Socket, 600V, Pre wired 8 Terminal Instrument Rated Wire, #2 Cu, Covered, S.D C ox, Secondary Connection 1 1 D Screw, Cap, 3/8 x F Conduit, Flex, I Staple 3 3 J Fitting 2 2 K Ground Unit Ground Coil 1 1 E FG Dead Arm 1 1 G Dbl Deadend on Pole with FG Extension 1 1 H Dbl Deadend on FG Arm without FG Extension 2 2 L Single Wood Arm 10 with races 1 1 M Switch, 15kV, 100 Amp Switch, 15kV, 200 Amp O Arrester, Lightning 3kV/2.55kV MCOV Arrester, Lightning 9kV/7.65kV MCOV 3 3 P racket, DL Sided NEMA Crossarm Mounting, Arrester and Fuse Cutout 3 3 Q kV Vice Top Insulator 1 1 R Adapter Pin for Vice Top Insulator 1 1 U Mach olt 20 x ⅝ 1 1 S Split olt #6 & 7#10 CW 4 T 02 Pole 1 1 V Eyelet, ¾ 1 W SDEA*W Deadend, Automatic, Secondary, DCS X olt, Machine ¾ x Y Washer, SQ, ¾ 1 1 REV. NO: 7 REV. DATE: 12/15/15

32 Primary Metering For Customer UG 3 Phase 3 Wire 4 thru 15 kv ** Sheet 3 of 4 ILLINOIS ONLY Stnd. / Stk. No. Description (Provided and Installed by Ameren IL) ** AA Mounting, Primary Metering Wire, #6 Cu, Covered, S.D. ( Ft. ) CC Clamp, Hot Line 3 DD MTR SHOP Wire Pack of 10 #12, Color Coded ( Ft. ) 25 FF MTR SHOP Current Transformer, 4 kv or 12 kv 2 GG MTR SHOP Potential Transformer, 4 kv or 12 kv 2 HH PG* Clamp, Parallel Groove (See DCS ) 6 JJ PG* Clamp, Parallel Groove (Neutral) (See DCS ) 2 KK DEC*W Clamp, D.E. DCS MM Connector, Cable to Flat, #6 2/0 4 4 NN Lug, Compression, #2 Cu. 6 6 QQ Cover, riser Conduit for 2 to SS Cover Cutout, 100A Cover Cutout, 200A 3 TT Guard, Clam Shell, Wildlife 3 3 AAA racket, 36, Mounting Terminators &Lightning Arresters racket, Cable 3 3 CCC Cable, 15kV # Cable, 15kV 4/0 35 DDD racket, Conduit Standoff, EEE Terminator, 15kV, # Terminator. 15kV. 4/0 3 FFF Nut ⅝ Jam 3 3 GGG Conduit, 4 Sch 80 (ft) HHH Strap Conduit III olt, Double, Arming ⅝ x Install Primary Metering 1 1 REV. NO: 7 REV. DATE: 12/15/15

33 Primary Metering For Customer UG 3 Phase 3 Wire 4 thru 15 kv ** Sheet 4 of 4 SOURCE A C PT 1 PT A A CT 1 CT 2 A C LOAD 3 WIRE REV. NO: 7 REV. DATE: 12/15/15

34 Primary Metering, 3 Phase 4 Wire 4 thru 15 kv ** Sheet 1 of 3 E T 4 G 1 6 ILLINOIS ONLY Load H Source HH 1 0 O, P, CC R, Q, U TT AA, GG F, I, J FF L Q M Tape all ungrnd. primary potential transf. terminals C.T. JJ, OO, PP P.T. SS 18 Min C 18 Min Conduit J A 3 0 MIN. 5 6 MAX. K Grounding DCS Grounding all instrument transformers, arresters, and mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole as per DCS ; maintain a minimum of 19 between the energized lateral and vertical conductors and the pole on non climbing side of the pole as per DCS If disconnect switches are required, the switch may be installed on adjacent poles. 5. For wire color coding on PT and CT secondaries, refer to system metering drawings. 6. If metering structure is located within a substation, the metering and arresters ground wires must be connected to the substation ground mat. 7. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance. Install arresters to load side on the adjacent pole if multiple span exposure on the load side exists and arresters may be installed on adjacent poles. REV. NO: 7 REV. DATE: 12/15/15

35 Primary Metering, 3 Phase 4 Wire 4 thru 15 kv ** Sheet 2 of 3 Stnd. / Stk. No. ILLINOIS ONLY Description(Provided and Installed by Ameren IL) ** A Meter Socket, 600V, Pre wired 13 Terminal Instrument Rated Wire, #2 Cu, Covered, S.D C ox, Secondary Connection 1 1 D Screw, Cap, 3/8 x F Conduit, Flex, I Staple 3 3 J Fitting 2 2 K Ground Unit 1 1 E FG Dead Arm 1 1 G Dbl Deadend on Pole with FG Extension 1 1 H Dbl Deadend on FG Arm without FG Extension 2 2 L Single Wood Arm 10 with races 1 1 M Switch, 15kV, 100 Amp Switch, 15kV, 200 Amp 3 N PG* Clamp, Parallel Groove DCS O Arrester, Lightning 3kV/2.55kV MCOV Arrester, Lightning 10kV/8.4kV MCOV 3 3 P racket, DL Sided NEMA Crossarm Mounting, Arrester and Fuse Cutout 3 3 Q kV Vice Top Insulator 3 3 R Adapter Pin for Vice Top Insulator 3 3 U Mach olt 12 x ⅝ 3 T 02 Pole 1 1 REV. NO: 7 REV. DATE: 12/15/15

36 Primary Metering, 3 Phase 4 Wire 4 thru 15 kv ** Sheet 3 of 3 Stnd. / Stk. No. ILLINOIS ONLY Description (Provided and Installed by Ameren IL) ** AA Mounting, Primary Metering Wire, #6 Cu, Covered, S.D. ( Ft. ) CC Clamp, Hot Line 3 DD MTR SHOP Wire Pack of 10 #12, Color Coded ( Ft. ) 25 FF MTR SHOP Current Transformer, 4 kv or 12 kv 3 GG MTR SHOP Potential Transformer, 4 kv or 12 kv 3 HH PG* Clamp, Parallel Groove (See DCS ) 6 JJ PG* Clamp, Parallel Groove (Neutral) (See DCS ) 2 KK DEC*W Clamp, D.E. DCS LL Deadend, Preformed Sec. Spool 1 1 MM Connector, Cable to Flat, #6 2/0 6 6 NN Lug, Compression, #2 Cu. 6 6 OO Secondary PP ST** Performed Tie, Side Ties DCS SS Cover, Cutout, 100A Cover, Cutout, 200A 3 TT Guard, Clam Shell, Wildlife Install Primary Metering 1 1 SOURCE N CA PT 1 CT 1 PT 2 CT A A PT 3 CT 3 LOAD 4 WIRE REV. NO: 7 REV. DATE: 12/15/15

37 Primary Metering For Customer UG 3 Phase 4 Wire 4 thru 15 kv ** Sheet 1 of 4 E T ILLINOIS ONLY H G Source KK HH O, P AA, FF, NN, EEE L S, GG, TT C AAA M O O TT ÉÉ ÉÉ P.T. C.T. Load SS CC 9 CCC 8 QQ F CCC 6 0 DDD, FFF, HHH, III V DDD, GGG S A 3 0 MIN. 5 6 MAX. Min 8 to Lowest racket 6 RACKET LESS THAN 8 AOVE THE GROUND MUST E ONDED. K Grounding DCS REV. NO: 8 REV. DATE: 06/22/17

38 Primary Metering For Customer UG 3 Phase 4 Wire 4 thru 15 kv ** Sheet 2 of 4 ILLINOIS ONLY 1. Grounding all instrument transformers, arresters, and mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole as per DCS ; maintain a minimum of 19 between the energized lateral and vertical conductors and the pole on non climbing side of the pole as per DCS If disconnect switches are required, the switch may be installed on adjacent poles. 5. For wire color coding on PT and CT secondaries, refer to system metering drawings. 6. If metering structure is located within a substation, the metering and arresters ground wires must be connected to the substation ground mat. 7. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance. Install arresters to load side on the adjacent pole if multiple span exposure on the load side exists and arresters may be installed on adjacent poles. 8. If water entering the duct becomes a problem, the top of duct can be sealed with polyurethane expanding form, stock # Expanding form requires a dispensing gun, stock # Material is provided by customer. Stnd. / Stk. No. Description(Provided and Installed by Ameren IL) ** A Meter Socket, 600V, Pre wired 13 Terminal Instrument Rated Wire, #2 Cu, Covered, S.D C ox, Secondary Connection 1 1 D Screw, Cap, 3/8 x F Conduit, Flex, I Staple 3 3 J Fitting 2 2 K Ground Unit, 7#10 CW, Ground Coil 1 1 E FG Dead Arm 1 1 G Deadend on Pole with FG Extension 1 1 H Deadend without FG Extension on FG Arm 2 2 L Single Wood Arm 10 with races 1 1 M Switch, 15kV, 100 Amp Switch, 15kV, 200 Amp O Arrester, Lightning 3kV/2.55kV MCOV Arrester, Lightning 9kV/7.65kV MCOV 3 3 P racket, DL Sided NEMA Crossarm Mounting, Arrester and Fuse Cutout 3 3 S Split olt 4 T 02 Pole 1 V Neutral Deadend 1 1 REV. NO: 8 REV. DATE: 06/22/17

39 Primary Metering For Customer UG 3 Phase 4 Wire 4 thru 15 kv ** Sheet 3 of 4 Stnd. / Stk. No. ILLINOIS ONLY Description (Provided and Installed by Ameren IL) ** AA Mounting, Primary Metering Wire, #6 Cu, Covered, S.D. ( Ft. ) CC Clamp, Hot Line 3 DD MTR SHOP Wire Pack of 10 #12, Color Coded ( Ft. ) EE Connector, Split olt, #2 Cu 2 FF MTR SHOP Current Transformer, 4 kv or 12 kv 3 GG MTR SHOP Potential Transformer, 4 kv or 12 kv 3 HH PG* Clamp, Parallel Groove (See DCS ) 6 JJ PG* Clamp, Parallel Groove (Neutral) (See DCS ) 2 KK DEC*W Clamp, D.E. DCS MM Connector, Cable to Flat, #6 2/0 6 6 NN Lug, Compression, #2 Cu. 6 6 OO Secondary Clevis 1 PP ST** Performed Tie, Side Ties DCS QQ Coupling, ell End, SS Cover, Cutout, 100A Cover, Cutout, 200A 3 TT Guard, Clam Shell, Wildlife 6 6 AAA racket, 36, Mounting Terminators &Lightning Arresters racket, Cable 3 3 CCC UG Cable, Provided by Customer per NEC 35 UG Cable, Provided by Customer per NEC 35 DDD racket, Conduit Standoff, EEE Terminator, Provided and installed by Customer 3 Terminator. Provided and installed by Customer 3 FFF Nut ⅝ Jam 3 3 GGG Conduit, 4 Sch 80 (ft) HHH Strap Conduit III olt, Double, Arming ⅝ x Install Primary Metering 1 1 REV. NO: 8 REV. DATE: 06/22/17

40 Primary Metering For Customer UG 3 Phase 4 Wire 4 thru 15 kv ** Sheet 4 of 4 SOURCE N CA PT 1 CT 1 PT 2 CT A A PT 3 CT 3 LOAD 4 WIRE REV. NO: 8 REV. DATE: 06/22/17

41 Primary Metering for Customer U.G. 3 Phase 4 Wire 25kV Sheet 1 of MISSOURI ONLY G KK KK LL,MM U T W HH OO X PP 4 0 RACKET DETAIL C,AA,GG C,CC,C DD MM,WW TT,UU 3 0 QQ VV SWITCH ROD G A1 G 7 0 G EEE TTT CONDUITS GROUND TTT SECTION XX 36 0 MAX. RR,C SSS,RRR,QQQ GGG DO NOT GROUND RACKETS G,C III,JJJ RR,C 4 12 MAX 8 MIN. 22 MAX H 7 0 #6 CU. WIRE CONNECT TO GROUND WIRE JJ WASHERS O GUARD NUTSQ DETAIL OF GUARD ONDING H OLT HEAD ON CALE SIDE OF GUARD A K P X MMM,LLL D RR,C,F III X NNN H CL OF WINDOW 3 0 MIN. 5 6 MAX. E,N,O J II,OOO,PPP TO SWITCH GROUND AAA,,CCC ENG:WYW REV. NO: 1 REV. DATE: 09/23/11

42 Primary Metering for Customer U.G. 3 Phase 4 Wire 25kV Sheet 2 of 4 NOTES: 1. When meter pole is on customer property, a group operate switch shall be provided one span before. 2. Secondary wire lead on meter cluster is 15ft. standard length. For tall poles, special order meter cluster with longer lead to meet max. height requirement for connection box. 3. Terminator mounting bracket is Aluma Form (T3CA 60 CHL). NORMALLY PROVIDED Y CUSTOMER Stnd. / Stk. No. Materials Description A Termination, 35kV, 1/0 750 kcmil olt, Machine 5/8 x 20 3 C Washer, Square, 5/8 x 2 1/4 23 D Arrester, Lightning, 27 kv 3 E Screw, Lag 3/8 x 3 6 F racket, Terminator 1 G Wire, Cu. #2., Covered S.D. (ft) 50 H Clamp, Hot Line, # I olt, Machine, 3/8 x 1 1/2 1 J Grounding Unit 1 K racket, Cable Support 3 L Strap, Poly., 2 x 36 1 M Iron Hanger 8 N Conduit, Plastic, 5 Split 30 O Guard, Conduit 5 1 P Cable, 35 kv, 3 1/0 AL 35 Q Nut, Hex, 3/8 2 R 277 Install Cable Up Pole 1 S Switch, 35 kv, 3 1/0 AL 1 T Insulator, Line Post 3 U Crossarm, 4 x 6 x W Eyelet 5/8 2 X race, Wood Heel, Y olt, Machine, 5/8 x 2 2 Z Washer, Lock, 5/8 2 AA olt, Machine, 5/8 x olt, Machine, 5/8 x 10 1 CC olt, Spacer, 5/8 x 20 2 DD Eyenut, 5/8 3 FF Eyenut, 3/4 3 GG Plate, Heel race, 13 3/8 to 19 2 HH Insulator, Susp., 34 kv 3 ENG:WYW REV. NO: 1 REV. DATE: 09/23/11

43 Primary Metering for Customer U.G. 3 Phase 4 Wire 25kV Sheet 3 of 4 Stnd./Stk. No. Materials Description JJ Washer, 3/8 Galv. 2 KK Lug, Comp., 1/0 Cu. 12 LL olt, Machine, 1/2 x 8 12 MM Washer, Round, 1/2 14 NN Kit 1 OO DEC*W Deadend 3 PP Crossarm, 3 1/2 x 4 1/2 x QQ race, 60 V 1 RR olt, Machine, 5/8 x 14 6 TT olt, Machine, 1/2 x 6 2 UU Washer, Round, 1/2 1 VV olt, Machine, 5/8 x 12 1 WW olt, Machine, 1/2 x 5 12 XX Mounting, Fuse, 30A, SM 5 3 YY SM 5 Refill (Sized by Engr.) 3 ZZ end, 5, 36 Rad. 1 A Wire, #6 Cu., are S.D. (ft.) 40 NORMALLY PROVIDED Y AMEREN Stnd./Stk. No. Materials Description AAA Step, Pole 5/8 x Tube, Concrete 14 Dia. CCC Concrete, 4SK EEE Connector, Split olt #4 4/0 Str. 3 FFF Clamp, Hot Line 6 GGG Connecctor, Cable to Flat, #6 2/0 6 HHH Mounting, 25 kv Pri Metering Cluster 1 III ox, Secondary Connection 1 JJJ Screw, Cap, 3/8 x 2 2 KKK Staple 3 LLL MTR SHOP Wire Pack of 10 #12, Color Coded (ft.) 25 MMM Conduit, Flex, 1 20 NNN Fitting 2 OOO Socket, Meter, 600V, 3 Phase, 4 Wire 1 PPP Screw, Wood, #14, 3, Rnd 4 QQQ Cord, Hrd Srv, 14/2 Cu, 600V 20 RRR Conduit, PVC Split 1 SSS Iron Hanger, Galv., 3/4 wide (ft.) 2 ENG:WYW REV. NO: 1 REV. DATE: 09/23/11

44 Primary Metering for Customer U.G. 3 Phase 4 Wire 25kV Sheet 4 of 4 * TTT Guard, Clam shell, Wildlife Install Primary Metering 1 SOURCE A C N PT 1 PT 2 PT 3 CT 1 CT 2 CT 3 A C N LOAD 4 WIRE ENG:WYW REV. NO: 1 REV. DATE: 09/23/11

45 Primary Metering 34.5kV, 3 Phase, 3 Wire Missouri Only Sheet 1 of 3 6 LOAD STATIC C D SOURCE VV D VV E D EE ZZ A LL ZZ 6 4 F J H I 2 0 VV EE H 1 TT H 2 H 1 XX LL TT VV H 2 H1 H 2 H 1 EE JJ H WW, AAA D G TT JJ H2 VV H1 EE G ZZ YY KK MM,NN,QQ,PP,FF YY KK AA,,CC,DD GG HH OO,SS LOAD SIDE A C C L OF WINDOW II RR H2 H 1 H 2 H 2 H 1 H2 CT 2 H1 PT 1 PT 2 H1 3 0 MIN. 5 6 MAX. M SOURCE SIDE L METERING TRANSFORMER PRIMARY CONNECTIONS REV. NO: 01 REV. DATE: 11/07/16

46 Primary Metering 34.5kV, 3 Phase, 3 Wire Missouri Only Sheet 2 of 3 LOAD SIDE H 2 H 2 H 2 H 2 H H 1 1 H 1 H 1 NOTES: SOURCE SIDE 1. Ground all instrument transformers, arresters, and aluminum mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 23 clearance between 34kV phases or phase to ground. 4. Maintain minimum of 4 clearances between the aluminum mounting platform and the crossarm. 5. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 30 between the energized lateral and vertical conductors and the pole on non climbing side of the pole. Reference from NESC, rule 239E. 6. Maintain a minimum of 40 between any part of the aluminum mounting platform and conductors of 4 or 12kV underbuilds. 7. If disconnect switches are required, the switches may be installed on adjacent poles. 8. For wire color coding on PT and CT secondary s, refer to system meter drawings. 9. If metering structure is located within a substation, the metering and LA ground wires must be connected to the substation ground mat. 10. To enhance the protection of the metering equipment ensure that the tap from the phase conductor to the arrester is as short as possible in distance and use only intermediate class lightning arresters. In stall arresters to load side if multiple span exposure on the load side exists and the arresters may be installed on adjacent poles. REV. NO: 01 REV. DATE: 11/07/16

47 Primary Metering 34.5kV, 3 Phase, 3 Wire Missouri Only Sheet 3 of 3 Stnd. / Stk. No. Description Provided and Installed y Customer Qty. A Pole Static Wire Attachment C Clamp, Guy Wire, ½ (used with 12/7 ACSR Static) Clamp, Parallel Groove (used with 1/0 AAAC Static) D DEC*W Clamp, Deadend DCS E Double Deadend Loop 34kV Top Phase F TCA*W Clamp, Trunnion DCS G PG** Clamp, Parallel Grove DCS H Double Deadend Loop 34kV on Fiberglass Arm 2 I Crossarm, Deadend, F/G 10 1 J kV Horizontal Line Post, Polymer, Double Insulators K olt, DA, ¾ x olt, DA, ¾ x 18 2 L Grounding Unit New Pole 1 M Clamp, PG, #6 1/0 to #6 1/0 2 Stnd. / Stk. No. Description Provided and Installed by Ameren Missouri Qty. AA Arrester, 24.4kv MCOV, 30kV Duty Cycle, Intermediate, ase Mount olt Mach ½ Dia x 2 ½ L 9 CC Washer RD ½ 18 DD Washer, Lock DL Coil, ½ 9 EE STC*W Clamp, Stirrup DCS FF olt/rd Washer/Lock Washer/Nuts Set ⅝ x 3 Stainless 16 GG Junction ox 1 HH Conduit, Flex, 1, Non Metallic ft 20 II Connector, 1 Conduit 2 JJ Connector, 2 olt, 2AWG Sol 350 MCM Str. ronze 8 KK Wire, #6 Cu Covered SD ft 20 LL Wire #2 Cu Covered (ft) 20 MM Mounting Assembly for 2CT s & 2PT s 1 NN olt, Mach, ¾ x 26 OO Clamp, Conduit, 1 Two Hole Steel Strap PP Washer Curved ¾ QQ Washer Lock DL Coil ¾ RR Meter Socket, Pre Wired 8 Terminal, Instrument Rated, Missouri SS Screw, Lag, ¼ x 2 Galv. 10 TT PLW*W Lead Wire, PH (ft) DCS UU Meter Shop Wire Pack of 10 ea. #12 Solid Cu Wires of Individual VV PG** Clamp, Parallel Grove Std WW Current Transformer, 34kV XX Potential Transformer, 34kV 2 YY Clamp, PG, #6 1/0 to #6 1/0 2 ZZ Wire, #4 Cu Covered (ft) 12 AAA Wildlife Cover for Ritz 34kV CT Install Primary Metering 1 REV. NO: 01 REV. DATE: 11/07/16

48 Primary Metering 34.5kV, 3 Phase, 4 Wire Missouri Only (Limited Use) Sheet 1 of 3 6 SOURCE C RAKE D LOAD A 6 0 D STATIC E D H M 6 4 G K,F EE EE 2 0 E,F 4 0 M G O N EE O G 2 0 I O O H HH HH 1 H H 1 H 2 2 H 1 H GG H1 H 2 CC, KK DD I,F GG P,Q,R,S,T II W U CL OF WINDOW 3 0 MIN. 5 6 MAX. X,JJ V Z AA LOAD SIDE A C PT 1 PT 2 PT3 H2 H2 H2 H1 H1 H1 H1 H1 H1 CT 1 CT2 CT 3 SOURCE SIDE N METERING TRANSFORMER PRIMARY CONNECTIONS ENG:WYW REV. NO: 01 REV. DATE: 11/07/16

49 Primary Metering 34.5kV, 3 Phase, 4 Wire Missouri Only (Limited Use) Sheet 2 of 3 LOAD SIDE NOTES: SOURCE SIDE METERING TRANSFORMER PRIMARY CONNECTIONS 1. Ground all instrument transformers, arrestors, and aluminum mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 23 clearance between 34kV phases or phase to ground. 4. Maintain minimum of 4 clearance between the aluminum mounting platform and the crossarm. 5. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 19 between the energized lateral and vertical conductors and the pole on non climbing side of the pole. Reference from NESC, Rule 239E. 6. Maintain a minimum of 40 between any part of the aluminum mounting platform and conductors of 4 or 12 kv underbuild. 7. If disconnect switches are required, they may be installed on adjacent poles. 8. For wire color coding on PT and CT secondaries, refer to system meter drawings. 9. If metering structure is located within a substation, the metering and L.A. ground wires must be connected to the substation ground mat. 10. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance and use only intermediate class lightning arresters. Install arresters to load side on the adjacent pole if multiple span exposure on the load side exists and arresters may be installed on adjacent poles. ENG:WYW REV. NO: 01 REV. DATE: 11/07/16

50 Primary Metering 34.5kV, 3 Phase, 4 Wire Missouri Only (Limited Use) Sheet 3 of 3 Stnd. / Stk. No. Description Installed and Provided y AmerenMissouri A Pole Static Wire Attachment C Clamp, Guy Wire, ½ (used with 12/7 ACSR Static) Clamp, Parallel Groove (used with 1/0 AAAC Static) D DEC*W Clamp, Deadend DCS E Double Deadend Loop 34kV Top Phase F TC*W Clamp, Trunnion DCS G PG** Clamp, Parallel Grove DCS H Double Deadend 34kV on Fiberglass Arm 2 I Horizontal Single Post Insulator,34kV J olt Mach ¾ x olt Mach ¾ x 16 2 K Horizontal Double Post Insulators,34kV L olt Mach ¾ x olt Mach ¾ x 18 2 M Crossarm, Deadend, F/G 10, 2 N Arrester, 24.4kV MCOV, 30kV Duty Cycle, NEMA racket Mount O STC*W Clamp, Stirrup DCS P Mounting Assembly, 3CT s & 3 PT s 1 Q olt, Mach, ¾ x 26 5 R Washer Curved ¾ 10 S Washer Lock DL, Coil, ¾ 5 T olt/rd Washer/Lock Washer/Nuts Set ⅝ x 3 Stainless 24 U Junction ox 1 V Connector, 1 Conduit 2 W Conduit, Flex, 1 Non Metallic (ft) 20 X Clamp, Conduit, 1 Two Hole Steel Strap Y Meter Shop Wire Pack of 10 ea. #12 Solid Cu Wires of Individual Colors Z Meter Socket, 600V, Pre Wired 13 Terminal, Instrument Rated, Missouri AA Grounding Unit New Pole Clamp, PG, #6 1/0 to #6 1/0 CC Current Transformer 69kV DD Potential Transformer 69kV EE PLW*W Lead Wire, PH (ft) DCS GG Connector, 2 olt, 2 Awg SD 350 MCM Str. ronze 9 HH Wire #2 Cu Covered (ft) 30 II Wire #6 Cu Covered (ft) 15 JJ Screw, lag, ¼ x 2 Galv. 10 KK Wildlife Cover for Ritz 34kV CT Install Primary Metering ENG:WYW REV. NO: 01 REV. DATE: 11/07/16

51 Primary Metering 34.5kV, 3 Phase, 3 Wire Illinois Only Sheet 1 of 3 6 C D LOAD SOURCE A STATIC 6 0 K E D V 4 QQ 6 4 OO F L QQ F I N 2 0 D OO I M 2 0 K V H 1 MM H 2 LL OO NN K OO K V H 1 KK LL H MM JJ K LL K H2 H2 LL H1 H1 V K K QQ Q W,X,Y,Z,AA II PP II Q,S,T,U DD EE,RR LOAD SIDE A C CC C L OF WINDOW GG H2 H 1 H 2 H 2 H 1 H2 CT 2 H1 PT 1 PT 2 H1 3 0 MIN. 5 6 MAX. II HH SOURCE SIDE METERING TRANSFORMER PRIMARY CONNECTIONS HH REV. NO: NEW REV. DATE: 08/14/14

52 Primary Metering 34.5kV, 3 Phase, 3 Wire Illinois Only Sheet 2 of 3 LOAD SIDE H 2 H 2 H 2 H 2 H H 1 1 H 1 H 1 NOTES: SOURCE SIDE 1. Ground all instrument transformers, arresters, and mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 23 clearance between 34kV phases or phase to ground. 4. Maintain minimum of 6 clearance between the aluminum mounting platform and the crossarm. 5. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 30 between the energized lateral and vertical conductors and the pole on non climbing side of the pole. Reference from NESC, Rule 239E. 6. Maintain a minimum of 40 between any part of the aluminum mounting platform and conductors of 4 or 12 kv underbuilt. 7. If disconnect switches are required, they may be installed on adjacent poles. 8. For wire color coding on PT and CT secondaries, refer to system meter drawings. 9. If metering structure is located within a substation, the metering and L.A. ground wires must be connected to the substation ground mat. 10. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance and use only intermediate class lightning arresters. Install arresters to load side on the adjacent pole if multiple span exposure on the load side exists and arresters may be installed on adjacent poles. REV. NO: NEW REV. DATE: 08/14/14

53 Primary Metering 34.5kV, 3 Phase, 3 Wire Illinois Only Sheet 3 of 3 Stnd. / Stk. No. Description Provided and Installed y AmerenIllinois A Pole Static, Wire Attachment C Clamp, Guy Wire, ½ (used with 12/7 ACSR Static) Clamp, Parallel Groove (used with 1/0 AAAC Static) D DEC*W Clamp, Deadend DCS E Double Deadend Loop 34kV Top Phase F TCA*W Clamp, Trunnion 3 I Double Deadend Loop 34kV on Fiberglass Arm K PG** Clamp, Parallel Grove DCS N Crossarm, Deadend, F/G 10 1 L kV Horizontal Line Post, Polymer, Double Insulator M olt, DA, ¾ x olt, DA, ¾ x 18 2 Q Arrester, 24.4kv MCOV, 30kV Duty Cycle, Intermediate, ase Mount S olt Mach ½ Dia x 2 ½ L 9 T Washer RD ½ 18 U Washer, Lock DL Coil, ½ V STC*W Clamp, Stirrup DCS W Mounting Assembly, 2CT s & 2PT s 1 X olt, Mach, ¾ x 26 5 Y Washer Curved ¾ 10 Z Washer Lock DL, Coil, ¾ 5 AA olt/rd Washer/Lock Washer/Nuts Set ⅝ x 3 Stainless Junction ox 1 CC Connector, 1 Conduit 2 DD Conduit, Flex, 1 Non Metallic (ft) 20 EE Clamp, Conduit, 1 Two Hole Steel Strap FF Meter Shop Wire Pack of 10 ea. #12 Solid Cu Wires of Individual Colors Contact Metering Department GG Meter Socket, Pre Wired, 8 Terminal, Instrument Rated, Illinois 1 HH Grounding Unit New Pole 1 II Clamp, PG, #6 1/0 to #6 1/0 JJ Current Transformer 34kV Contact Metering Dept. KK Potential Transformer 34kV Contact Metering Dept. LL PLW*W Lead Wire, PH (ft) DCS MM CL*W Lug, Connector 4 Hole DCS NN Connector, 2 olt, 2 Awg SD 350 MCM Str. ronze 4 OO Wire #2 Cu Covered (ft) 20 PP Wire #6 Cu Covered (ft) 20 QQ Wire, #4 Cu Covered (ft) 12 RR Screw, lag, ¼ x 2 Galv Install Primary Metering 1 3 REV. NO: NEW REV. DATE: 08/14/14

54 Primary Metering 34.5kV, 3 Phase, 4 Wire Illinois Only Sheet 1 of 3 C RAKE A SOURCE LOAD 6 STATIC 6 0 D E D H M G D L K F D EE 2 0 J M 4 0 EE N 6 6 EE EE O 2 0 O II O G G G O HH H 1 H 2 G HH H1 H 2 H1 G H H H 1 2 H 2 GG DD CC E,F FF I,F G EE P,Q,R,S,T X,JJ V U LOAD SIDE A C C L OF WINDOW 3 0 MIN. 5 6 MAX. W Z AA H2 H1 CT 1 PT 1 PT 2 H2 H1 H1 H1 CT2 H2 SOURCE SIDE H1 H1 CT 3 METERING TRANSFORMER PRIMARY CONNECTIONS PT3 N NOTE: The standards is limited to 3 phase, 4 wire, wye system. ENG:WYW REV. NEW REV. DATE: 08/14/14

55 Primary Metering 34.5kV, 3 Phase, 4 Wire Illinois Only Sheet 2 of 3 LOAD SIDE SOURCE SIDE METERING TRANSFORMER PRIMARY CONNECTIONS NOTES: 1. Ground all instrument transformers, arresters, and mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 23 clearance between 34kV phases or phase to ground. 4. Maintain minimum of 6 clearance between the aluminum mounting platform and the crossarm. 5. Maintain a minimum of 40 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 19 between the energized lateral and vertical conductors and the pole on non climbing side of the pole. Reference from NESC, Rule 239E. 6. Maintain a minimum of 40 between any part of the aluminum mounting platform and conductors of 4 or 12 kv underbuild. 7. If disconnect switches are required, they may be installed on adjacent poles. 8. For wire color coding on PT and CT secondaries, refer to system meter drawings. 9. If metering structure is located within a substation, the metering and L.A. ground wires must be connected to the substation ground mat. 10. To enhance the protection of the metering equipment ensure that the tap for the phase conductor to the arrester is as short as possible in distance and use only intermediate class lightning arresters. Install arresters to load side on the adjacent pole if multiple span exposure on the load side exists and arresters may be installed on adjacent poles. ENG:WYW REV. NEW REV. DATE: 08/14/14

56 Primary Metering 34.5kV, 3 Phase, 4 Wire Illinois Only Sheet 3 of 3 Stnd. / Stk. No. Description Provided and Install y AmerenIllinois A Pole Static Wire Attachment C Clamp, Guy Wire, ½ (used with 12/7 ACSR Static) Clamp, Parallel Groove (used with 1/0 AAAC Static) D DEC*W Clamp, Deadend DCS E Double Deadend Loop 34kV Top Phase F TC*W Clamp, Trunnion DCS G PG** Clamp, Parallel Grove DCS H Double Deadend 34kV on Fiberglass Arm 2 I Horizontal Single Post Insulator,34kV J olt Mach ¾ x olt Mach ¾ x 16 2 K Horizontal Double Post Insulators,34kV L olt Mach ¾ x olt Mach ¾ x 18 2 M Crossarm, Deadend, F/G 10, 2 N Arrester, 24.4kV MCOV, 30kV Duty Cycle, NEMA racket Mount O STC*W Clamp, Stirrup DCS P Mounting Assembly, 3CT s & 3 PT s 1 Q olt, Mach, ¾ x 26 5 R Washer Curved ¾ 10 S Washer Lock DL, Coil, ¾ 5 T olt/rd Washer/Lock Washer/Nuts Set ⅝ x 3 Stainless 24 U Junction ox 1 V Connector, 1 Conduit 2 W Conduit, Flex, 1 Non Metallic (ft) 20 X Clamp, Conduit, 1 Two Hole Steel Strap Y Meter Shop Wire Pack of 10 ea. #12 Solid Cu Wires of Individual Colors Z Meter Socket, 600V, Pre Wired 13 Terminal, Instrument Rated, Illinois AA Grounding Unit New Pole Clamp, PG, #6 1/0 to #6 1/0 CC Current Transformer 69kV DD Potential Transformer 69kV EE PLW*W Lead Wire, PH (ft) DCS FF CL*W Lug, Connector 4 Hole DCS GG Connector, 2 olt, 2 Awg SD 350 MCM Str. ronze 3 HH Wire #2 Cu Covered (ft) 30 II Wire #6 Cu Covered (ft) 15 JJ Screw, lag, ¼ x 2 Galv Install Primary Metering ENG:WYW REV. NEW REV. DATE: 08/14/14

57 Primary Metering 69kV, 3 Phase, 3 Wire (Missouri Only) Sheet 1 of 4 6 C A D LOAD STATIC SOURCE 6 F 6 0 D H EE 6 4 E F,J G I 2 0 D 2 0 EE VV H 1 TT TT VV AAA EE H 2 LL H 2 VV 9 0 H TT SS H 2 LL H 1 AAA WW H 1 H1 WW JJ,XX H 2 H 1 AA,, CC,DD MM,NN,PP,QQ,FF YY KK GG HH OO, ZZ II LOAD SIDE A C C L OF WINDOW RR CT 1 H2 H 1 H 2 H 2 H 1 H2 CT2 H1 PT 1 PT 2 H1 3 0 MIN. 5 6 MAX. M L SOURCE SIDE METERING TRANSFORMER PRIMARY CONNECTIONS REV. NO: NEW REV. DATE: 08/14/14

58 Primary Metering 69kV, 3 Phase, 3 Wire (Missouri Only) Sheet 2 of 4 LOAD SIDE H2 H2 H2 H2 H1 H1 H1 H1 SOURCE SIDE NOTES: 1. Ground all instrument transformers, arresters, and aluminum mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain a minimum of 38 clearance between 69kV phases or phase to ground. 4. Maintain minimum of 7 ½' clearance between the aluminum mounting platform and the crossarm. 5. Maintain a minimum of 54 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 18 between the energized conductors and the pole on non climbing side of the pole. Reference from NESC, rule 239E. 6. Maintain a minimum of 40 between any part of the aluminum mounting platform and conductors of 4 or 12kV underbuilds. 7. If disconnect switches are required, the switches may be installed on adjacent poles. 8. For wire color coding on PT and CT secondary s, refer to system meter drawings. 9. If metering structure is located with a substation, the metering and LA ground wires must be connected to the substation ground mat. 10. To enhance the protection of the metering equipment ensure that the tap from the phase conductor to the arrester is as short as possible in distance and use only intermediate class lightning arresters. Install arresters to load side if multiple span exposure on the load side exists and the arresters may be installed on adjacent poles. REV. NO: NEW REV. DATE: 08/14/14

59 Primary Metering 69kV, 3 Phase, 3 Wire (Missouri Only) Sheet 3 of 4 Stnd. / Stk. No. Description Normally Provided and Installed y A Pole Static, Wire Attachment C Clamp, Guy Wire, ½ (used with 12/7 ACSR Static) Clamp, Parallel Groove (used with 1/0 AAAC Static) D DEC*W Clamp, Deadend DCS E Double Deadend Loop 69kV Top Phase F TCA*W Clamp, Trunnion DCS G Double Deadend Loop 69kV on Fiberglass Arm H PG** Clamp, Parallel Grove DCS I Crossarm, Deadend, F/G 10 1 J kV Horizontal Line Post, Polymer, Double Insulators K olt, DA, ¾ x olt, DA, ¾ x 18 2 L Grounding Unit New Pole 1 M Clamp, PG, #6 1/0 to #6 1/0 2 Qty. Stnd. / Stk. No. Description Provided and Installed y Ameren Qty. AA Arrester, 48kV MCOV, 60kV Duty Cycle, Intermediate, ase Mount olt Mach ½ Dia x 2 ½ L w/nut 9 CC Washer RD ½ 18 DD Washer, Lock DL Coil, ½ EE STC*W Clamp, Stirrup DCS FF olt/rd Washer/Lock Washer/Nuts Set ⅝ x 3 Stainless GG Junction ox 1 HH Conduit, Flex, 1, Non Metallic (Ft) 20 II Connector, 1 Conduit 2 JJ Connector, 2 olt, 2AWG Sol 350 MCM Str. ronze 4 KK Wire, #6 Cu Covered SD (Ft) 20 LL Wire #2 Cu Covered (Ft) 20 AAA Wire #4 Cu Covered SD (Ft) 12 MM Mounting Assembly for 2CT s & 2PT s 1 NN olt, Mach, ¾ x 26 5 OO Clamp, Conduit, 1 Two Hole Steel Strap 5 ZZ Screw, Lag, ¼ x 2 Galv. 10 PP Washer Curved ¾ 10 QQ Washer Lock DL Coil ¾ 5 RR Meter Socket, Pre Wired 8 Terminal, Instrument Rated, SS CL*W Lug, Connector 4 Hole Std REV. NO: NEW REV. DATE: 08/14/14

60 Primary Metering 69kV, 3 Phase, 3 Wire (Missouri Only) Sheet 4 of TT PLW*W Lead Wire, PH (Ft) DCS UU Meter Shop Wire Pack of 10 ea. #12 Solid Cu Wires of Individual VV PG** Clamp, Parallel Grove See Std WW Current Transformer, 69kV XX Potential Transformer, 69kV 2 YY Clamp, PG, #6 1/0 to #6 1/ Install Primary Metering REV. NO: NEW REV. DATE: 08/14/14

61 Primary Metering 69kV, 3 Phase, 3 Wire (Illinois Only) Sheet 1 of 3 A 6 C LOAD STATIC D SOURCE E F 6 0 K K D L,F M V I 2 0 N I D K LL V K LL V PP OO OO H 2 H 2 PP H 1 KK H 2 H 1 H 2 K H1 H 1 JJ 9 0 K OO K NN V H 2 H 1 H 2 H 1 K MM QQ Q W,X,Y,Z,AA S,T,U CL OF WINDOW 3 0 MIN. 5 6 MAX. DD EE,RR CC GG II HH LOAD SIDE A C H2 H 1 H 2 H 2 H 1 H2 CT 1 CT 2 H1 PT 1 PT 2 H1 SOURCE SIDE METERING TRANSFORMER PRIMARY CONNECTIONS REV. NO: 2 REV. DATE: 09/29/17

62 Primary Metering 69kV, 3 Phase, 3 Wire (Illinois Only) Sheet 2 of 3 LOAD SIDE H2 H2 H2 H2 H1 H1 H1 H1 SOURCE SIDE NOTES: 1. Ground all instrument transformers, arrestors, and aluminum mounting assembly to the grounding unit. 2. Install barriers for protection against vehicular traffic where necessary. 3. Maintain minimum of 38 clearance between 69kV phases or phase to ground. 4. Maintain minimum of 7 ½ clearance between the aluminum mounting platform and the crossarm. 5. Maintain a minimum of 54 between the energized conductors and the pole on climbing side of the pole; maintain a minimum of 18 between the energized conductors and the pole on non climbing side of the pole. Reference from NESC, Rule 239E. 6. Maintain minimum of 40 clearance from any part of aluminum mounting unit to conductors of 12kV or 4kV underbuilds. 7. If there is any problem maintaining clearances between transformer leads and static wire ground, omit static wire ground at this pole. 8. Due to variations in 34kV configurations each primary metering installation should be individually designed. ut this standard will serve as a general guide. 9. If disconnect switches are required, they may be installed on an adjacent pole. 10. For wire color coding on PT and CT secondaries refer to system meter drawings. Stnd. / Stk. No. Description Provided and Installed y Ameren A Pole Static, Wire Attachment C Clamp, Guy Wire, ½ (used with 12/7 ACSR Static) Clamp, Parallel Groove (used with 1/0 AAAC Static) D DEC*W Clamp, Deadend DCS E Double Deadend Loop 69kV Top Phase F TCA*W Clamp, Trunnion 3 REV. NO: 2 REV. DATE: 09/29/17

63 Primary Metering 69kV, 3 Phase, 3 Wire (Illinois Only) Sheet 3 of 3 I Double Deadend Loop 69kV on Fiberglass Arm K PG** Clamp, Parallel Grove DCS N Crossarm, Deadend, F/G 10 1 L kV Horizontal Line Post, Polymer, Double Insulator M olt, DA, ¾ x olt, DA, ¾ x 18 Q Arrester, 48kV MCOV, 60kV Duty Cycle, Interm (Grd WYE System) Arrester, 57kV MCOV, 72kV Duty Cycle, Interm (Delta System) 3 S olt Mach ½ Dia x 2 ½ L 9 T Washer RD ½ 18 U Washer, Lock DL Coil, ½ V STC*W Clamp, Stirrup DCS W Mounting Assembly, 2CT s & 2PT s 1 X olt, Mach, ¾ x 26 5 Y Washer Curved ¾ 10 Z Washer Lock DL, Coil, ¾ 5 AA olt/rd Washer/Lock Washer/Nuts Set ⅝ x 3 Stainless Junction ox 1 CC Connector, 1 Conduit 2 DD Conduit, Flex, 1 Non Metallic (ft) 20 EE Clamp, Conduit, 1 Two Hole Steel Strap 5 RR Screw, Lag, ¼ x 2 Galv. FF Meter Shop Wire Pack of 10 ea. #12 Solid Cu Wires of Individual Colors Contact Metering Department GG Meter Socket, Pre Wired, 8 Terminal, Instrument Rated, Illinois HH Grounding Unit Ground Coil Grounding Unit Ground Rod 1 II Clamp, PG, #6 1/0 to #6 1/0 JJ Current Transformer 69kV Contact Metering Dept. KK Potential Transformer 69kV Contact Metering Dept. LL PLW*W Lead Wire, PH (ft) DCS MM CL*W Lug, Connector 4 Hole DCS NN Connector, 2 olt, 2 Awg SD 350 MCM Str. ronze 4 OO Wire #2 Cu Covered (ft) 20 PP Wire #6 Cu Covered (ft) 20 QQ Wire #4 Cu Covered (ft) Install Primary Metering 1 REV. NO: 2 REV. DATE: 09/29/17

64 Primary Metering 69kV, 3 Phase, 4 Wire (Illinois Only) Sheet 1 of 3 C RAKE D A SOURCE LOAD 6 STATIC 6 0 E D I LL G PP H H2 N G G N II H OO LL H L,M 6 4 F H 6 Q LL 5 0 H G H 2 H MM 1 H 2 H 1 H 1 H H OO NN JJ KK N H 1 H I 2 0 D N,O,P,R,S,T,U H LL H 2 W,X,Y,Z,AA PP EE,QQ DD LOAD SIDE A C PT 1 PT 2 PT3 CL OF WINDOW CC GG II H2 H1 CT 1 H1 H2 H1 CT2 H1 H2 H1 CT 3 H1 3 0 MIN. 5 6 MAX. HH SOURCE SIDE METERING TRANSFORMER PRIMARY CONNECTIONS N NOTE: The standards is limited to 3 phase, 4 wire, wye system. ENG:WYW REV. NEW REV. DATE: 08/14/14