underground service ud... · appropriate metering assembly specification. 2) other conditions, as...
TRANSCRIPT
CITY OF SEGUIN ELECTRICAL CONNECTION POLICY UNDERGROUND SERVICE
UNDERGROUND SERVICE A. CONSTRUCTION STANDARDS
1) Refer to TABLE OF UNDERGROUND SPECIFICATIONS DRAWINGS for appropriate metering assembly specification.
2) Other conditions, as contained in this policy, may apply. 3) Underground service can be provided from both overhead and underground
primary facilities. All loads more than 100kVA single-phase and 300kVA three-phase must be served from pad-mounted transformers. Due to the many clearance and meter location problems, it is imperative that the City of Seguin be contacted before designing this service.
4) It is the responsibility of the customer to furnish and install, at their expense,
conduit that meets all specifications of city ordinances, the NEC, and the City of Seguin. The City of Seguin shall provide and install all risers to be placed on the City of Seguin poles, wire, and cable at such cost to the customer as is specifically indicated herein.
5) The customer shall install conduits in accordance with the City of Seguin
specification SEEU-910. All conduit depths are minimum and shall be designed such that they are maintained permanently. Special consideration is given to conduits installed in rock. Contact the City of Seguin regarding each of these installations. The City of Seguin will assume ownership of conduit and trench only after the City of Seguin has approved the conduit installation and successfully installed the primary conductors.
6) Single-phase riser and conduit from transformers and/or secondary boxes shall
have a conduit size of 2” for meter loops up to 200 amps if the total length of the run is less than 100 feet. A 2” conduit can be used where the total length is less than 150 feet and there is one (1) 90-degree sweep and/or one (1) 45-degree sweep in the horizontal run. Conduit runs exceeding the above limitations shall require a minimum size of 3” conduit. Meter loops over 200 amp shall have a minimum conduit size of 3” or larger. Additional runs of conduit may be required. The customer shall furnish a reducing bushing for the 200 amp meter sockets where 3” conduit is utilized. This is to accommodate a 2” knockout. Sweeps shall have a minimum of 18” radius, or as approved by the City of Seguin.
7) Three-phase risers and conduit from transformers and/or secondary boxes shall
have a minimum conduit size of 3” for meter loops. The customer shall furnish a
reducing bushing for the 200 amp meter sockets where 3” conduit is utilized. This is to accommodate a 2” knockout. Additional runs of conduit may be required for larger loads. Sweeps shall have a minimum of 18” radius.
8) CT metered services shall have a minimum of 1” conduit at a maximum distance
of 30’ between the pad mounted transformer and the meter socket. Contact the City of Seguin Electric Department for other approved methods for CT meter installations.
9) Streetlight service conduit shall be a minimum of 1”. 10) All exposed secondary conduit to be GRC (Galvanized Rigid Conduit), IMC
(Intermediate Metal Conduit), Rigid Aluminum, or Schedule 40 PVC only per the following specifications. Schedule 80 PVC may be required in what’s considered a hazardous area. See the National Electric Safety Code (NESC) and National Electric Code (NEC) for a description of hazardous areas.
11) All exposed primary conduit will be GRC (Galvanized Rigid Conduit), IMC,
(Intermediate Metal Conduit), or Rigid Aluminum and all sweeps will be of GRC (Galvanized Rigid Conduit), or Rigid Aluminum with a minimum of 24” radius. No exposed PVC conduit will be accepted on primary installations.
12) At the discretion of the City of Seguin concrete encasement or special backfill
may be required for any conduit at any depth carrying a primary and/or secondary line extension to ensure the longevity and integrity of the circuit and the safety of customers and personnel. Concrete encasement so required shall be furnished and installed by the customer. All concrete encasement must meet the City of Seguin specifications.
13) The customer shall furnish and install, at his expense, a pull string of a minimum
1000# test, whose length is at least 10’ longer than the conduit run where possible without entering or working on any City of Seguin equipment. The pull string will remain the property of the customer at the conclusion of its use by the City of Seguin.
14) Plastic identification tape, red or yellow in color and with black lettering reading,
“CAUTION: BURIED ELECTRIC CABLE BELOW”, shall be placed in the cable trench at a depth of 12” to 18” above electric conduit and below any communication cable or conduit. The customer shall supply this tape. In the event that the tape is inadvertently cut, notify the City of Seguin so that replacement may be made, if necessary.
15) Customer shall obtain and install all meter troughs for permanent underground
service according to the City of Seguin specifications as illustrated herein.
16) Installation of the above is subject to inspection and approval by the City of Seguin.
17) In no case shall installation requirements be less than those called for in the NEC
or NESC. 18) All primary conduit installations shall be not less than 42 inches to the top of the
conduit and may be reduced due to soil conditions to a lesser depth with written approval by the City of Seguin.
19) The customer will be required to install one (10) ten foot joint of GRC,
(Galvanized Rigid Conduit), IMC (Intermediate Metal Conduit), or Rigid Aluminum at pole risers per specification EU-800 for each pipe installed. To a depth of 18” below grade per 300-5(d) NEC code.
20) All customers must furnish and install, at their expense, all appropriate conduit,
pull strings, tape and pads in accordance with other appropriate sections of this policy.
21) Singe Phase Pads will be furnished by the City of Seguin for a residential
installation only. Commercial customers will be required to pour their transformer pad.
22) Customer shall excavate trench to proper depth and install PVC Schedule 40
Electrical Conduit NEMA TC 2. Conduit elbows (sweeps) for primary shall have a minimum of 24” radius and be of GRC, IMC, or Rigid Aluminum. City maintained conduit elbows for secondary shall have a minimum of 18” radius and be of GRC, IMC or Rigid Aluminum. Conduit shall be sized by the City of Seguin. Where Electrical equipment foundations (for transformers, junction boxes, switchgear) lie on top of trench line, the foundation area shall be back filled with compacted base for the entire depth of the trench. Trenches, which cross or will be under streets, commercial driveways, or parking lots, shall be back filled with Flowable Fill.
TRANSFORMER FUSE: FUSE STOCK #
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-1
PEDESTAL AND CABLE LABELING
TRANSFORMAER
123
T1
D E
PEDESTAL
123
DT1
PEDESTAL
123
ET1
LOOP #
PEDESTAL #
CABLE LABELS
1
4
0
2
1
4
0
4
1402 HOUSTON 1404 HOUSTON
DO NOT USE LETTERS: A, B, C, I, O, Q, V, Z
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-2
PRIMARY CABLE LABELING
LETTERS:
A, B, C USED FOR PRIMARY CABLE LABELING ONLY
T2A
T2B
T2C
RS1231 A
RS1231 B
RS1231 C
RS1231 T2
5657
100 KVA
277/480
123
T1
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-3
RADIAL SWITCH LABEL
RISER-TRANSFORMER : PEDESTAL
RS1231
123
T1
T2 T1
4567
50 KVA
120/240
123
T2
7654
50 KVA
120/240
D
E
T2 T1 D
R
S
1
2
3
1
123
DT1
123
ET1
123
DT2
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-4
UNDERGROUND - RADIAL
LABELING SCHEME
RS1231
123
T1
T2 T1
4567
50 KVA
120/240
123
T2
7654
50 KVA
120/240
R
S
1
2
3
1
T
50
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-5
UNDERGROUND LOOP
LABELING SCHEME
LS1231
123
T1
T2 T1
7899
50 KVA
120/240
123
T2
3747
50 KVA
120/240
123
T4
LS1232 T2
3435
50 KVA
120/240
123
T3
7624
50 KVA
120/240
T3
T4T3
LS1231 T50
LS1232 T50
NORMAL OPEN INDICATOR
(SOLID GREEN SQUARE 7" X 7")
WARNING
SIGN
RISER NUMBER
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-6
PAD MOUNT XFMR - FRONT VIEW
1 PHASE LABELING SCHEME
DEVICE CONNECTED TO
LEFT PRIMARY BUSHING
DEVICE CONNECTED TO
RIGHT PRIMARY BUSHING
RS1231 T2
123
T1
7899
50 KVA
120/240
COMPANY #
SIZE IN KVA
VOLTAGE
LOOP
NUMBER
XFMR #
WARNING
SIGN
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-7
PAD MOUNT XFMR - FRONT VIEW
3 PHASE LABELING SCHEME
DEVICE CONNECTED TO
'A' BUSHING
DEVICE CONNECTED TO
'B' BUSHING
LS1231 T2
123
T1
1234
100 KVA
277/480
COMPANY #
LOOP
NUMBER
DEVICE #
LOOP OR
RADIAL
WARNING
SIGN
SIZE IN KVA
VOLTAGE
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-8
PRIMARY RISER LABEL
(LOOP-LS, RADIAL-RS)
R
S
1
2
3
1
T
5
0
FUSE
SIZE
RISER
NUMBER
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-9
RADIAL SWITCH
LABEL DEFINITION
RADIAL SWITCH
RS1231
DEVICE NUMBER
RADIALS WILL ALWAYS BE
LABELED RS_ _ _ 1
ENDING WITH 1
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS PCLAB-10
LOOP SWITCH
LABEL DEFINITION
LOOP SWITCH
LS1231
DEVICE NUMBER
LOOPS WILL ALWAYS BE
LABELED LS_ _ _ 1 AND LS_ _ _ 2
TO DESIGNATE RISER 1
AND RISER 2
If the City of Seguin conductors cross more than 4 linear feet of
roof, clearance must be increased from 18" to 36". If wires cross
more than 6 linear feet of roof, clearance must be greater than
8'.
Point of attachment: 17' above final ground grade
recommended; minimum 12'6". Customer to install point of
attachment 6" below and opposite weatherhead, facing toward
the City of Seguin service lead. Attachment eye part Blackburn
6912 or equivalent.
Metal flashing: If metal roof, plastic may be substituted. Special
roof problems shall be coordinated with the City of Seguin.
Rigid metal conduit: GRC or IMC, secured to wall with two
appropriately spaced 2-hole straps, sized to fit conduit, and
attached with galvanized lag screws.
100 amp loop: 1 1/4" minimum.
200 amp loop: 2" minimum.
Conductors: Minimum 90°C rated insulation and minimum 3'
excess length out of weatherhead.
100 amp loop: Three #2 stranded copper conductors.
200 amp loop: Three #2/0 stranded copper conductors.
Customer to use same copper conductor from weatherhead to
meter socket, and from meter socket to main disconnect.
Neutral shall be marked with white tape in the meter socket and
at the weatherhead.
Meter socket: 5' minimum and 6' maximum from center of
socket to final ground grade, when measured 3' in front of
socket.
Weatherproof main disconnect: Located below or adjacent to
meter socket, with minimum 3' unobstructed clearance in front.
House panel may be located below or adjacent to main
disconnect or inside building (not inside a closet).
Grounding electrode conductor: Minimum #6 copper, connected
to neutral lug in meter socket or neutral bar (NEC 250.24(A)(1)).
Enclose in 1/2" sunlight resistant PVC conduit, continuing 2"
below final ground grade. Secure to wall with two appropriately
spaced 2-hole straps, sized to fit conduit, and attached with
galvanized lag screws.
Ground rod: 5/8" x 8' copper-clad, driven 2" below final ground
grade.
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may
not reflect all requirements of a specific installation.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER INSTALLATIONS
REQUIRE INSPECTION BY THE CITY OF SEGUIN.
Final Ground Grade
METERING ASSEMBLY
MAST THROUGH ROOF
SEEH-010NTS
Pole and point of attachment installed by the City of Seguin.
Weatherhead: Maximum 24" from top of pole.
Rigid metal conduit: GRC or IMC, secured to pole with a
minimum of 3 appropriately spaced 2-hole straps, sized to
fit conduit, and attached with galvanized lag screws.
100 amp loop: 1 1/4" minimum.
200 amp loop: 2" minimum.
Conductors: Minimum 90°C rated insulation and minimum
3' excess length out of weatherhead.
100 amp loop: Three #2 stranded copper conductors.
200 amp loop: Three #2/0 stranded copper conductors.
Customer to use same copper conductors from
weatherhead to meter socket, and from meter socket to
main disconnect. Neutral shall be marked with white tape in
the meter socket and at the weatherhead. Minimum #6
copper bonding shall be provided where necessary (all
non-current carrying parts) to ensure electrical continuity.
Meter socket: 5' minimum and 6' maximum from center of
socket to final ground grade, when measured 3' in front of
socket. Position to face road or driveway, or as
directed/approved by the City of Seguin.
Weatherproof main disconnect: Located below meter
socket, with minimum 3' unobstructed clearance in front.
Grounding electrode conductor: Minimum #6 copper,
connected to neutral lug in meter socket or neutral bar
(NEC 250.24(A)(1)). Enclose in 1/2" sunlight resistant PVC
conduit, continuing 2" below final ground grade. Secure to
pole with two appropriately spaced 2-hole straps, sized to fit
conduit, and attached with galvanized lag screws.
Ground rod: 5/8" x 8' copper-clad, driven 2" below final
ground grade.
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER INSTALLATIONS REQUIRE
INSPECTION BY THE CITY OF SEGUIN.
Final Ground Grade
SEEH-020
NTS
METERING ASSEMBLY
ON POLE
CONDUIT: INSTALL 1-1/4" SCHEDULE 40 PVC.
SECURE CONDUIT WITH TWO APPROPRIATELY
SPACED 2-HOLE STRAPS, SIZED TO FIT CONDUIT
AND ATTACHED WITH GALVANIZED LAG SCREWS.
UNDERGROUND CONDUIT INSTALLED
ACCORDING TO CITY OF SEGUIN SPECIFICATION
SEEU-910. CUSTOMER SHALL CONNECT TO CITY
OF SEGUIN INSTALLED CONDUIT STUB WHERE
POSSIBLE WITHOUT ENTERING OR WORKING ON
ANY CITY OF SEGUIN EQUIPMENT. A 1000# TEST
PULL STRING TO BE INSTALLED IN CONDUIT BY
CUSTOMER. SCHEDULE WITH CITY OF SEGUIN IF
SOURCE FEEDS FROM ENERGIZED EQUIPMENT.
ALL EXPOSED CONDUIT TO BE GRC, IMC, RIGID
ALUMINUM, SCHEDULE 40 PVC OR SCHEDULE 80
PVC IN A HAZARDOUS AREA.
GROUNDING ELECTRODE CONDUCTOR: MINIMUM
#6 COPPER CONNECTED TO NEUTRAL LUG IN
METER SOCKET OR NEUTRAL BAR (NEC 250.24
(A)(1)). ENCLOSE IN 1/2" SUNLIGHT RESISTANT
PVC CONDUIT, CONTINUING 2" BELOW FINAL
GRADE. SECURE TO WALL WITH TWO
APPROPRIATELY SPACED 2-HOLE STRAPS SIZED
TO FIT CONDUIT AND ATTACHED WITH
GALVANIZED LAG SCREWS.
GROUND ROD: 5/8" X 8' COPPER CLAD, DRIVEN 2"
BELOW FINAL GRADE. FOUNDATION STEEL,
WATER PIPE GROUNDING, GAS PIPE BONDING,
AND STRUCTURAL STEEL GROUNDING SHALL BE
INSTALLED PER NEC ARTICLE 250.
METER SOCKET: 5' MINIMUM AND 6' MAXIMUM
FROM CENTER OF SOCKET TO FINAL GROUND
GRADE, WHEN MEASURED 3' IN FRONT OF
SOCKET.
THIS SPECIFICATION SHALL BE USED ONLY IN CONJUNCTION WITH THE CITY OF
SEGUIN ELECTRICAL CONNECTION POLICY AND MAY NOT REFLECT ALL
REQUIREMENTS OF A SPECIFIC INSTALLATION.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER
INSTALLATIONS REQUIRE INSPECTION BY THE CITY OF SEGUIN,
FINAL GROUND GRADE
Meter socket: 5' minimum and 6' maximum from
center of socket to final ground grade, when
measured 3' in front of socket.
Weatherproof main disconnect or shunt trip
device: Located adjacent to meter socket, with
minimum 3' unobstructed clearance in front. For
locations other than this contact the City of
Seguin Inspection Department.
Customer to install conductors from main
disconnect to meter socket per NEC
specifications. Neutral to be marked with white
tape in meter socket. Neutral to be run un-spliced
when possible.
Conduit: To be sized per NEC. Conduit should
be placed on the opposite side of meter socket
from main disconnect. Secure conduit with two
appropriately spaced 2-hole straps, sized to fit
conduit and attached with galvanized lag screws.
All exposed conduit to be GRC, IMC Rigid
Aluminum schedule 40 PVC or schedule 80 PVC
in a hazardous area.
Underground conduit installed according to the
City of Seguin specification SEEU-910.
Customer shall connect to the City of Seguin
installed conduit stub where possible without
entering or working on any City of Seguin
equipment. A 1000# test pull string to be
installed in conduit by customer where possible
without entering or working on any City of Seguin
equipment.
Grounding electrode conductor: Minimum #6
copper, connected to neutral lug in meter socket
or neutral bar (NEC 250.24 (A)(1)). Enclose in
1/2" sunlight resistant PVC conduit, continuing 2"
below final ground grade. Secure to wall with two
appropriately spaced 2-hole straps sized to fit
conduit and attached with galvanized lag screws.
Ground rod: 5/8" x 8' copper-clad, driven 2"
below final ground grade. Foundation steel, water
pipe grounding, gas pipe bonding and structural
steel grounding shall be installed per NEC Article
250.
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may
not reflect all requirements of a specific installation.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER INSTALLATIONS
REQUIRE INSPECTION BY THE CITY OF SEGUIN.
Final Ground Grade
SEEU-020
NTS
METERING ASSEMBLY
UNDERGROUND SERVICE
ON STAND
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy
and may not reflect all requirements of a specific installation.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER INSTALLATIONS
REQUIRE INSPECTION BY THE CITY OF SEGUIN.
Meter stand: 2" GRC, or IMC, continuing a minimum of 2' below final
ground grade with protective tar tape or polywrap extending 2" above
and encased in concrete, 4 sack mix 300PSI minimum. Top of pipe
to have rain proof cap. As an alternative, a commercially available
meter/disconnect pedestal will be acceptable. Proposed catalog
numbers with complete description shall be submitted for approval.
Galvanized mounting channel, Kendorf or equivalent, 1 1/2" x 1 1/2":
Welded or bolted to stand with galvanized bolts.
Meter socket: 5' minimum and 6' maximum from center of socket to
final ground grade when measured 3' in front of meter. Secure at
four points to two appropriately spaced mounting channels.
Weatherproof main disconnect or shunt trip device: Located
adjacent to meter socket, with minimum 3' unobstructed clearance in
front. Secure at four points to two appropriately spaced mounting
channels. For locations other than this installation contact City
Inspections Department.
Conduit: To be sized per NEC. Conduit should be placed on the
opposite side of meter socket from main disconnect. Secure conduit
to one appropriately spaced mounting channel with Kendorf strap or
equivalent, or galvanized U bolt sized to fit conduit.
All exposed conduit to be GRC, IMC Rigid Aluminium schedule 40
PVC or schedule 80 PVC in a hazardous area.
Customer to install conductors from disconnect to meter socket per
NEC specifications, Neutral to be marked with white tape in meter
socket. Neutral to be un-spliced when possible.
Underground conduit will be installed according to the City of Seguin
specification SEEU-910. Customer shall connect to the City of
Seguin installed conduit stub where possible without entering or
working on any City of Seguin equipment. A 1000# test pull string is
to be installed in conduit by customer where possible without
entering or working on any City of Seguin equipment.
Grounding electrode conductor: Minimum #6 copper. Connect to
neutral lug in meter socket or neutral bar (NEC 250.24 (A)(1)).
Enclose in 1/2" sunlight resistant PVC conduit, continuing 2" below
final ground grade. Secure conduit to mounting channel with Kendorf
strap or equivalent, or galvanized U bolts, sized to fit conduit.
All grounding and bonding to be to NEC Article 250 requirements.
Final Ground Grade
WIRE TYPE
SERVICE MAIN ALUMINUM COPPER
RATING 75°C 90°C 75°C 90°C
60 Amp #4 #6 #6 #6
70 Amp #3 #4 #4 #6
100 Amp #1 #2 #3 #3
125 Amp 1/0 1/0 #1 #2
150 Amp 3/0 2/0 1/0 #1
200 Amp 250 MCM 4/0 3/0 2/0
(NEC Table 310-16)
Note: Other service rating shall be submitted to City of Seguin for approval.
SEEU-045
NTS
METERING ASSEMBLY
MULTIPLE METERS
UNDERGROUND SERVICE
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy
and may not reflect all requirements of a specific installation.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER INSTALLATIONS
REQUIRE INSPECTION BY THE CITY OF SEGUIN.
Meter mounting equipment shall be commercially available horizontal gang or bussed gutter type.
Proposed catalog numbers and complete description shall be submitted for approval. Any other design
or equipment arrangement shall be submitted for approval. Meter mounting equipment shall be installed
such that the center of the highest meter will be 5' minimum and 6' maximum from final ground grade.
Each disconnect device shall have permanent address marking. These markings by the customer
should
be plain and permanent, giving the street number to the door of the premise served, or the symbol
appearing on the entrance door when this door does not carry a street number. The name of the
customer will not suffice for identification. The meter sockets in multi-tenant buildings shall be clearly
and durably marked.
Conductor to be sized and installed according to NEC and local code requirements.
All exposed conduit to be GRC, IMC, Rigid Aluminum, schedule 40 PVC or schedule 80 PVC in a
hazardous area. See article 300 of the NEC.
Underground conduit: Installed according to the City of Seguin specification SEEU-910. Customer shall
connect to City of Seguin installed conduit stub where possible without entering or working on any City
of Seguin equipment. A 1000# test pull string to be installed in conduit by customer where possible
without entering or working on any City of Seguin equipment.
Where a separate conduit is required for the ground wire, a properly sized ground wire shall be
enclosed in 1/2" or larger sunlight resistant PVC conduit, continuing 2" below final ground grade. Secure
to wall with 2 or more appropriately spaced straps, sized to fit conduit, and attached with galvanized lag
screws. Metal conduit acceptable, but must comply with NEC 250.64(e).
See 250(c) of NEC for grounding electrode system and grounding electrode conductor.
NTS
SEEU-070
METERING ASSEMBLY
CT STAND
This meter stand is used when metering PT's and CT's are located
within the secondary compartment of the padmount transformer.
Meter assembly stand must be positioned 4' to the side of the
transformer pad. Meter CANNOT be located in front of the
transformer pad due to hot stick access requirements.
Meter stand: 2" GRC or IMC, continuing a minimum of 2' below
final ground grade with protective tar tape or polywrap extending 2"
above and encased in concrete, 4 sack mix minimum. Top of pipe
to have rain proof cap.
Galvanized mounting channel: Kendorf or equivalent, 1 1/2" x 1
1/2", welded or bolted to stand with galvanized bolts.
Meter socket: 5" minimum and 6' maximum from center of socket
to final ground grade when measured 3' in front of meter. Secure
at four points to two appropriately spaced mounting channels.
All exposed conduit to be 1 1/4" sunlight resistant Schedule 40
PVC. For installations subject to possible physical damage,
Schedule 80 PVC shall be substituted per NEC. All PVC will meet
NEMA TC-2-1998 for electrical use. Secure conduit to two
appropriately spaced mounting channels with Kendorf straps or
equivalent, or galvanized U bolts, sized to fit conduit.
Underground conduit: 1 1/4" Schedule 40 PVC, installed
according to NBU specification EU-910. Customer shall connect to
City of Seguin installed conduit stub. 1000# test pull string to be
installed in conduit by customer.
Grounding electrode conductor: Minimum #6 copper, connected to
neutral lug in meter socket or neutral bar (NEC 250.24 (A) (1)),
enclosed in 1/2" sunlight resistant PVC conduit, continuing 2" below
final ground grade and secured to two mounting channels with
Kendorf straps or equivalent, or galvanized U bolts, sized to fit
conduit.
Ground rod: 5/8" x 8' copper-clad, driven 2" below final ground
grade.
Final Ground
Grade
Open
Area
AB C S S S
4'
FRONT VIEW
2"
36" TYP
1
1
4
"
SIDE VIEW
2'
5' (min) - 6' (max)
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN ELECTRICAL DEPARTMENT. ALL CUSTOMER
INSTALLATIONS REQUIRE INSPECTION BY THE CITY OF SEGUIN ELECTRICAL DEPARTMENT.
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation.
NOTE:
This installation is not the only
method for metering if the CT's
and PT's are mounted within the
secondary compartment of the
transformer. For other methods
contact the City of Seguin Electric
Department.
SEEU-110
NTS
METERING ASSEMBLY
UNDERGROUND TEMPORARY
836
BELL
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may
not reflect all requirements of a specific installation.
METER LOCATION IS DETERMINED BY THE CITY OF SEGUIN. ALL CUSTOMER APPLICATIONS
REQUIRE INSPECTION BY THE CITY OF SEGUIN.
WIRE TYPE
SERVICE MAIN ALUMINUM COPPER
RATING 75°C 90°C 75°C 90°C
60 Amp #4 #6 #6 #6
70 Amp #3 #4 #4 #6
100 Amp #1 #2 #3 #3
125 Amp 1/0 1/0 #1 #2
150 Amp 3/0 2/0 1/0 #1
200 Amp 250 MCM 4/0 3/0 2/0
(NEC Table 310-16)
Note: Other service rating shall be submitted to the City of Seguin
Planning and Coding Department for approval.
Treated 4" x 4" post: Height above final ground grade shall be 7' and
a minimum below ground of 2'. Three wood braces required,
minimum 2" x 4", secured with 2" x 4" stakes driven securely into
ground. Braces shall not be attached to trees or other structures.
Site Address: Marked on 1' x 1' exterior (painted) or marine plywood.
Conductors: Service lateral conductors shall be sized according to
the table below, as a minimum, based upon the main bus rating of
the disconnect device; unless otherwise approved by the City of
Seguin. Conductor insulation shall be rated for direct burial (wet
locations).
Meter socket: 4' 6" minimum and 6' maximum from center of socket
to final ground grade and positioned to face road or driveway, or as
directed/approved by the City of Seguin. Source connections shall
be made on top side of meter socket.
Approved disconnect device(s) in exterior enclosure. Receptacles
shall be in weatherproof enclosure per NEC requirements. Circuits
shall have GFCI protection. Customer to install a minimum of one
120 V, 20 amp receptacle and one 240 V, 20 amp receptacle.
Electrical conduit for service lateral conductors shall be GRC, IMC,
Rigid Aluminum or a minimum of schedule 40 PVC.
100 amp loop: 1 1/4" minimum; 200 amp: 2" minimum. The conduit
shall extend 6" below ground grade at temporary post. Conduit shall
be secured to post with 2 appropriately spaced straps, sized to fit
conduit, and attached with lag screws.
Conductor shall be buried from post to within 6" of service
equipment, at a minimum depth of 24" and have 5' leads at service
equipment.
At least on Ground rod: 5/8" x 8' copper-clad, driven 2" below final
ground grade. See NEC Article 250-56
5/8" X 8"
Ground Rod
Weather proof flexible steel
conduit long enough to enter
into transformer cabinet.
6' 6" to
top of
handles
NTS
ENCLOSURE
SECONDARY
SEEU-210
18"
(Final Ground Grade)
or compacted fill
Undisturbed earth
4" - 6"
10"
24"
(Final Ground Grade)
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and
may not reflect all requirements of a specific installation.
The electric system layout design, to include secondary enclosure locations, is determined by the
City of Seguin electrical department.
Note: Size of enclosure shall be determined by the City of Seguin electrical department. Make sure
that conduit is not located under lip of box. Primary and Secondary stubouts shall be 5' minimum.
60"
COMPACTED TxDOT GRADE 4, TYPE A,
FLEXIBLE BASE MATERIAL, WASHED SAND,
OR OTHER APPROVED MATERIAL FROM
BOTTOM OF TRENCH TO BOTTOM OF PAD.
6"
36"
18"
6" min.
A
A
C
B B
C
3"
A
A A
AA A B
18"
A
C
B
A
Ground
Rod
6" Typ.
6"
Typ.
4"
Wire mesh, 6 gage
C
A
B
A
C
B
C
C
B B
B B B
C
C CC
6" x 6"
Grade
Final Ground
or compacted fill
Undisturbed earth
B
B
C
Ground Rod
C
A
B
A A A B B B B C CC
Ground Rods
4"
1" (TYP)
A C
A C
SEEU-310
PRIMARY URD PULL BOX
NTS
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and
may not reflect all requirements of a specific installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of
Seguin.
A, B, C = Conductor phase; Phase orientation shall be verified prior to installation.
Underground conduit to be installed according to City of Seguin specification SEEU-910.
Conduit to be sized by the City of Seguin and have 1" projection above concrete,
36" radius, 90° sweeps and be of GRC, IMC, or Rigid Aluminium. 1000# test pull string to be installed in each
conduit by the customer where possible without entering or working on any City of Seguin equipment.
Copper-clad ground rods, 5/8" x 8', 2 required, to have 4" projection above bottom of pull box.
All primary stub outs shall be 5' minimum.
Pull Box to be furnished by the City of Seguin and installed by the customer.
B
B
A
C C
A
* A
B
C
A
B
*
AA
B
C
*
of 3 locations.
Any combination
*
C
B
A
A
B
C
A A B B B C C C
*
B
A A B B B C C C
7"o.c.
COMPACTED TxDOT GRADE 4, TYPE A,
FLEXIBLE BASE MATERIAL, WASHED SAND,
OR OTHER APPROVED MATERIAL FROM
BOTTOM OF TRENCH TO BOTTOM OF FDTN.
60"
4"o.c.
11"
10"
Wire mesh, 6 gage
6" x 6"
6"
3"
TOP VIEW
Ground Rod
11"
30"
15"
4"
15"
Grade
Final Ground
or compacted fill
Undisturbed earth
Ground
Rod
SIDE VIEW
A
A
C
C
Ground Rods
4"
1" (TYP)
PRIMARY, THREE PHASE,
NTS
3 PLACE PULLBOX PAD
SEEU-315
This specification shall be used only in conjunction with the COS Electrical Connection Policy and may not
reflect all requirements of a specific installation. Locations are determined by the City of Seguin electrical
department. All customer installations require inspection by the City of Seguin electrical department.
A, B, C = Conductor phase; Phase orientation shall be verified prior to installation.
Underground conduit to be installed according to City of Seguin specification SEEU-910.
Conduit to be sized by the City of Seguin electrical department and have 1" projection above concrete,
36" radius, 90° sweeps. 1000# test pull string to be installed in each conduit by the customer.
Copper-clad ground rods, 5/8" x 8', 2 required, to have 4" projection above top on concrete.
Concrete to be 4 sack mix minimum.
All primary stub outs shall be 5' minimum.
Code Description QtySpec. No. Uom
CONCRETEsc
NON-INVENTORY
WIRE MESH, 6 GAGE, 6" X 6"wm
NON-INVENTORY sq. ft.22
8 FT. GROUND ROD 2285-106-00038gr
ea.
A/R cu. yds.
SEEU-320
PRIMARY (600 AMP),
THREE PHASE, 4 PLACE
NTS
PULLBOX PAD
A
A
C
B B
C
A
A A
AA
A B
A
C
A
B
A
C
B
C
C
B B
B B B
C
C CC
B
C
B
A A
A B
A C
A C
B B
B
C C
C
76"
COMPACTED TxDOT GRADE 4, TYPE A,
FLEXIBLE BASE MATERIAL, WASHED SAND,
OR OTHER APPROVED MATERIAL FROM
BOTTOM OF TRENCH TO BOTTOM OF FDTN.
12"11.5"
42"
30"
8" min.
SIDE VIEW
4"
12"
TOP VIEW
Ground
Rod
15"
15"
4"
Wire mesh, 6 gage
FRONT
6" x 6"
Grade
Final Ground
or compacted fill
Undisturbed earth
Ground Rods
4"
1" (TYP)
4"
(TYP)
Ground
Rod
8.5"
PRIMARY (600 AMP),
THREE PHASE, 4 PLACE
NTS
PULLBOX PAD
This specification shall be used only in conjunction with the COS Electrical Connection Policy and may not
reflect all requirements of a specific installation. Locations are determined by the City of Seguin electrical
department. All customer installations require inspection by the City of Seguin electrical department.
A, B, C = Conductor phase; Phase orientation shall be verified prior to installation.
Underground conduit to be installed according to City of Seguin specification SEEU-910.
Conduit to be sized by the City of Seguin electrical department and have 1" projection above concrete,
36" radius, 90° sweeps. 1000# test pull string to be installed in each conduit by the customer.
Copper-clad ground rods, 5/8" x 8', 2 required, to have 4" projection above top on concrete.
Concrete to be 4 sack mix minimum.
All primary stub outs shall be 5' minimum.
SEEU-320
Code Description QtySpec. No. Uom
CONCRETEsc
NON-INVENTORY
WIRE MESH, 6 GAGE, 6" X 6"wm
NON-INVENTORY sq. ft.22
8 FT. GROUND ROD 2285-106-00038gr
ea.
A/R cu. yds.
PRIMARY (600 AMP),
THREE PHASE, 3 PLACE
NTS
PULLBOX PAD
SEEU-325
S
A
C
B B
C
S
A A
AA A B
A
C
S
S
S
S
S
C
C
B B
B B S
C
C CS
B
C
B
A A
S B
A C
A C
B B
S
C C
S
S
76"
COMPACTED TxDOT GRADE 4, TYPE A,
FLEXIBLE BASE MATERIAL, WASHED SAND,
OR OTHER APPROVED MATERIAL FROM
BOTTOM OF TRENCH TO BOTTOM OF FDTN.
19.5"
42"
30"
8" min.
SIDE VIEW
4"
12"
TOP VIEW
Ground
Rod
15"
15"
4"
Wire mesh, 6 gage
FRONT
6" x 6"
Grade
Final Ground
or compacted fill
Undisturbed earth
Ground Rods
4"
1" (TYP)
4"
(TYP)
Ground
Rod
Spare conduit as needed
12.5"
SEEU-325
PRIMARY (600 AMP),
THREE PHASE, 3 PLACE
NTS
PULLBOX PAD
This specification shall be used only in conjunction with the COS Electrical Connection Policy and may not
reflect all requirements of a specific installation. Locations are determined by the City of Seguin electrical
department. All customer installations require inspection by the City of Seguin electrical department.
A, B, C = Conductor phase; Phase orientation shall be verified prior to installation.
Underground conduit to be installed according to City of Seguin specification SEEU-910.
Conduit to be sized by the City of Seguin electrical department and have 1" projection above concrete,
36" radius, 90° sweeps. 1000# test pull string to be installed in each conduit by the customer.
Copper-clad ground rods, 5/8" x 8', 2 required, to have 4" projection above top on concrete.
Concrete to be 4 sack mix minimum.
All primary stub outs shall be 5' minimum.
COMPACTED TxDOT GRADE 4, TYPE A, FLEXIBLE
BASE MATERIAL, WASHED SAND, OR OTHER
APPROVED MATERIAL FROM BOTTOM OF
TRENCH TO BOTTOM OF FDTN.
Ground Rod
3/8' REBAR, 12" CENTERS
Ground Rod
Grade
Final Ground
or compacted fill
Undisturbed earth
SEEU-330
PRIMARY, SINGLE PHASE,
PULLBOX FOUNDATION
NTS
This specification shall be used only in conjunction with the COS Electrical Connection Policy and may not
reflect all requirements of a specific installation.
Locations are determined by the City of Seguin electrical department. All customer installations require
inspection by the City of Seguin electrical department.
Underground conduit to be installed according to City of Seguin specification SEEU-910.
Conduit to be sized by the City of Seguin electrical department and have 1" projection above concrete,
36" radius, 90° sweeps. 1000# test pull string to be installed in each conduit by the customer.
Copper-clad ground rods, 5/8" x 8', 1 required, to have 4" projection above top on concrete.
Concrete to be 4 sack mix minimum.
All primary stub outs shall be 5' minimum.
5' min
6'
TOP VIEW DETAIL
SIDE VIEW
24"
8 1/2"
Bolts from bolt kits; 1" - 8 UNC
8 1/2"
Bolts from bolt kit, 1" - 8 UNC,
to have 3 1/2" projection
above top of concrete.
sweeps, extended 2' from concrete
1 1/4" Schedule 40 PVC with 90
Concrete to be 3000 PSI with a
system.
and/or connected to conduit
4" tooled radius on edge.
1
2
" Schedule 40 PVC
conduit for ground wire
Final Grade
5
8
" x 8' Ground Rod
6" Wide Caution Tape
(6)
5
8
" x 5' rebar with
3
8
" rebar
ties at 12" O.C. or
3
8
" spiral
rebar with 12" pitch.
3
8
" Rebar coiled steel tied at 12"
spacing
1" Projection above top of concrete
STANDARD METAL LIGHT
NTS
FOUNDATION
SEEU-410
#6 copper installed by the City of Seguin
Bolt kit provided by the City of Seguin.
1
2
" Sch 40 PVC conduit
This specification shall be used only in conjunction with the City of Seguin Electrical
Connection Policy and may not reflect all requirements of a specific installation Locations are
determined by the City of Seguin electrical department. All customer installations require
inspection by the City of Seguin electrical department.
SEEU-420
NTS
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and
may not reflect all requirements of a specific installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of
Seguin.
The City of Seguin shall install pole, hang private light, pull Type UF cable, and make all connections. The
City of Seguin will furnish and install 1" riser. The 1" lateral shall be furnished by customer to meet the City of
Seguin specifications. Customer shall provide pull string in conduit. Comply with NEC 300-5.
1" service lateral. Concrete encasement
required if lateral is under driveway.
SECURITY LIGHT
UNDERGROUND SERVICE
Parking lot or vehicle traffic.
To pad mount transformer,
secondary pull box, trough
or overhead source.
Caution tape 12" above service lateral.
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NTS SEEU-500
PADMOUNT TRANSFORMER
CLEARANCES
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation. The fencing or bushes are not required. The measurements are
only intended to show distance requirements should fencing and bushes be used to hide transformer.
Transformer location must be accessible at all
times. Clearance around the City of Seguin
equipment to any barrier shall be 3' minimum.
Any installation that would enclose any
metering/disconnect assemble within the barrier
shall be assessable by some means like a gate
and approved by the City of Seguin.
Barrier can be vegetation, chain link, wood,
concrete block, or appropriate material.
Fencing/gate material shall be designed to allow for
adequate air circulation around equipment and is
subject to the City of Seguin approval.
The front of the City of Seguin transformer shall
have a minimum 10' of clearance due to hot stick
access requirements.
Top
View
Side View
8' max
Front
3'
3'
3'
Transformer Pad
8'
EQUIPMENT PROTECTION BOLLARD
SEEU-505
NTS09/28/2010
Center primary
conduits in this
area.
Center
secondary
conduits in this
area.
3/8" Re-bar 12" o.c.
Final Grade
Ground Rod
NTS SEEU-510
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of Seguin.
Underground conduit to be installed according to City of Seguin specification SEEU-910. Conduit to be sized by the
City of Seguin and have 5" projection above concrete, 36" radius, 90° sweeps. 1000# test pull string to be installed by
customer where possible without entering or working on any City of Seguin equipment.
Copper-clad ground rods, 5/8" x 8', 1 required, to have 4" projection above top on concrete.
Transformer Pad shall be a minimum of 8" thick from top to bottom.
All primary and secondary stub cuts shall be 5' minimum.
Open Area
Conduit
TRANSFORMER PAD
THREE PHASE FOR 2000 KVA AND
SMALLER
Ground Rod
Center primary
conduits in this
area.
Center
secondary
conduits in this
area.
3/8" Re-bar 12" o.c.
Final Grade
Ground Rod
Ground Rod
NTS SEEU-511
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of Seguin.
Underground conduit to be installed according to City of Seguin specification SEEU-910. Conduit to be sized by the
City of Seguin and have 5" projection above concrete, 36" radius, 90° sweeps. 1000# test pull string to be installed by
customer where possible without entering or working on any City of Seguin equipment.
Copper-clad ground rods, 5/8" x 8', 1 required, to have 4" projection above top on concrete.
Transformer Pad shall be a minimum of 12" thick from top to bottom.
All primary and secondary stub cuts shall be 5' minimum.
Open Area
Conduit
TRANSFORMER PAD
THREE PHASE LARGER
THAN 2000 KVA
SEEU-520
SINGLE PHASE TRANSFORMER PAD
N.T.S
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of Seguin.
Underground conduit to be installed according to City of Seguin specification SEEU-910. Conduit to be sized by the
City of Seguin and have 5" projection above concrete, 36" radius, 90° sweeps. 1000# test pull string is to be installed
by customer where possible without entering or working on any City of Seguin equipment.
Copper-clad ground rods, 5/8" x 8', 1 required, to have 4" projection above top on concrete.
Transformer Pad shall be a minimum of 8" thick from top to bottom.
All primary and secondary stub cuts shall be 5' minimum.
3/8" Re-bar 12" on center
Final Grade
Ground RodConduit
Secondary
Conduits
Primary
Conduits
GRD RODGRD ROD
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not reflect all requirements of a specific
installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of Seguin.
Underground conduit installed according to the City of Seguin specification SEEU-910. Conduit to be sized by the City of Seguin and have 5" projection
above concrete, 36" radius, 90° sweeps. A 1000# test pull string to be installed by customer where possible without entering or working on any City of
Seguin equipment.
Copper-clad ground rods, 5'8" x 8', 2 required, to have 4" projection above top of concrete.
Switch Cabinet Pad shall be a minimum of 8" thick from top to bottom.
All primary and secondary stub cuts shall be 5" minimum.
FINAL GRADE
CONDUIT GROUND ROD
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and may not
reflect all requirements of a specific installation.
Locations are determined by the City of Seguin. All customer installations require inspection by the City of Seguin..
Pole and bracket installed by the city of Seguin.
Conduit size will be specified by the City of Seguin
for each project.
Riser must be plumb with pole and attached to a
stand off bracket.
Underground conduit installed according to the City
of Seguin specification SEEU-910. Conduit to be
sized by the City of Seguin. Conduit sweep to be a
minimum of 24" radius and be GRC, IMC or Rigid
Aluminum. A 1000# test pull string is to be installed
by customer where possible without entering or
working on any City of Seguin equipment.
PRIMARY
NEUTRAL
FINAL GRADE
Offset from pole to center of conduit shall be as
follows:
3" Conduit = 9"
2" Conduit = 8 1/2"
Extend one 10' joint of GRC, IMC or Rigid
Aluminum so that it is a minimum of 5' above final
grade with either a coupling at the top or threaded
to receive a coupling. Rigid will be installed 18"
below grade for protection per 300-5(d) NEC.
1ST RISER
BRACKET
SEEU-800
NTS
STUB OUT ON POLE RISER
Multi-phase service
Single-phase service
Primary
Secondary
Caution: Buried Electric Cable
18" min.
12" to 18"
Final Ground Grade
Communication
Cable (opt)
54" min.
24" min.
STREET
A
B
C
C
B
A
Mound earth 3" to 4" above final ground grade.
Communication cable/conduit shall be installed
above all electrical conduit(s) and caution tape.
A 6" wide plastic caution tape, red or yellow in color
with black lettering reading, "Caution: Buried
Electric Cable Below", will be placed in the trench
12" to 18" above electrical conduit but below any
communication cables. For more than 2 conduits
horizontally in trench, 2 tapes shall be installed.
Customer shall excavate trench to proper depth and
install PVC Schedule 40 Electrical Conduit NEMA
TC 2. Conduit elbows (sweeps) for primary shall
have 36" radius. Conduit elbows for secondary shall
have 18" radius. Conduit shall be sized by NBU.
Where electrical equipment foundations (for
transformers, junctions boxes, switchgear) lie on top
of trench line, the foundation area shall be back
filled with compacted base for the entire depth of the
trench.
Trenches which cross or will be under streets,
commercial driveways, or parking lots shall be back
filled with compacted base material or washed sand.
Customer to furnish and install 1000# test pull string.
No pipe, gas, or water line shall be closer than 36"
vertically or horizontally from any underground
electrical conductor.
At no time shall any electric line, primary or
secondary, be connected for service if found to
cross under any building foundation.
7" (TYP)
7" (TYP)
This specification shall be used only in conjunction with the City of Seguin Electrical Connection
Policy and may not reflect all requirements of a specific job.
Locations are determined by the City of Seguin electrical engineering department. All customer
installations require inspection by the City of Seguin electrical engineering department.
All Primary and Secondary stubouts shall be 5' minimum.
For multi-phase service, conductor phase
orientation shall be as shown unless approved
otherwise by the City of Seguin electrical
engineering department.
SEEU-910
UNDERGROUND CONDUIT
INSTALLATION
NTS
SINGLE PHASE
6 POLE C.T. METERING
NTS SEM1-1
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NOTES:
1. WHITE REPRESENTED AS GREY
2. LID MUST CLOSE WITH SWITCHES OPEN
X3
X1
X1X2
X2 X1
THREE PHASE
10 POLE C.T. METERING
NTS SEM3-1
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
NOTES:
1. WHITE REPRESENTED AS GREY
2. LID MUST CLOSE WITH SWITCHES OPEN
X3
X1X2
X2
X1X2
X1
X1X2
3-PHASE PADMOUNT
DEADFRONT SWITCH GEAR
ASSEMBLY PAD
600A 25 Kv 125Kv BIL
*CONDUIT POSITIONS MUST BE APPROVED
BY THE CITY OF SEGUIN ELECTRICAL
ENGINEERING DEPARTMENT PRIOR TO
CONSTRUCTION
6"
13" 12" 12" 22" 12" 12" 13"
22
1
2
"
96"
23"
17
3
4
" 19" 17
1
2
"
S
200 AMP SIDE
96"
12" MIN
4"
1"
4"
FINAL
GROUND GRADE
UNDISTURBED EARTH
OR COMPACTED FILL
8' X 5/8" COPPER
ROUND ROD
3/8" REBAR (MIN)
12" OC
8' X 5/8" COPPER
ROUND ROD
TOP VIEW
S = SPARE CONDUIT
HWY 46
SIDE VIEW
A B C
C B AA B C
C B AA B C
*ANCHOR BOLTS TO
SECURE SWITCH WILL
BE INSTALLED BY THE
CITY OF SEGUIN
WASHED GRAVEL
OR OTHER APPROVED MATERIAL FROM
BOTTOM OF TRENCH TO BOTTOM OF FDTN
8' X 5/8" COPPER
GROUND ROD
13"
3" 3" 3"
4" 4" 4"4" 4" 4"
4"4"
10
1
2
" 10
1
2
" 10
1
2
" 10
1
2
"
3"3"3"
ABC
S
600 AMP SIDE
17"
17"
48"
2"
200 AMP SIDE
600 AMP SIDE
14"
13"
14"
13"
14"
13"
14"
8' X 5/8" COPPER
GROUND ROD
8' X 5/8" COPPER
GROUND ROD
8' X 5/8" COPPER
GROUND ROD
2"
2" PVC FOR
GROUNDING CONDUCTOR
6"
47"
47"
6"
7"
This specification shall be used only in conjunction with the City of Seguin Electrical Connection Policy and
may not reflect all requirements of a specific installation.
Locations are determined by the City of Seguin electrical engineering department. All customer
installations require inspection by the CIty of Seguin electrical engineering department.
Underground conduit to be installed according to City of Seguin specification SEEU-910.
Conduit to be sized by the City of Seguin and have 1" projection above concrete, 36" radius, 90° sweeps.
1000# test pull string to be installed by customer.
Concrete to be 4 sack mix minimum.
NTS
SESG1
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
SWITCH GEAR DESIGN #1
14"
13"
6"
13" 12" 12" 20
1
4
" 10
1
2
" 10
1
2
" 17
3
4
"
22
1
2
"
96"
23"
17
3
4
" 18
1
2
" 17
3
4
"
S
200 AMP SIDE
96"
12" MIN
4"
1"
4"
FINAL
GROUND GRADE
UNDISTURBED EARTH
OR COMPACTED FILL
8' X 5/8" COPPER
ROUND ROD
3/8" REBAR (MIN)
12" OC
8' X 5/8" COPPER
ROUND ROD
TOP VIEW
S = SPARE CONDUIT
SIDE VIEW
A B C
C B AA B C
*ANCHOR BOLTS TO
SECURE SWITCH WILL
BE INSTALLED BY THE
CITY OF SEGUIN
3-PHASE PADMOUNT
DEADFRONT SWITCH GEAR
ASSEMBLY PAD
600A 25 Kv 125Kv BIL
WASHED GRAVEL
OR OTHER APPROVED MATERIAL FROM
BOTTOM OF TRENCH TO BOTTOM OF FDTN
8' X 5/8" COPPER
GROUND ROD
14"
13"
3"
10
1
2
" 10
1
2
" 10
1
2
" 10
1
2
"
4"
8' X 5/8" COPPER
GROUND ROD
8' X 5/8" COPPER
GROUND ROD
8' X 5/8" COPPER
GROUND ROD
23"
C B A
3"3"
4"
4" 4"
4" 4" 4"
4"
4"4"4"
4"
S
S
600 AMP SIDE
C B ACBA
600 AMP SIDE600 AMP SIDE
17"
2"
17"
2"
14"
13"
14"
13"
STREET
2" PVC FOR
GROUNDING CONDUCTOR
6"
47"
46"
6"
7"
NTS
SESG2
TITLE
SCALE DRAWING NO.
DATE ISSUED: 09/28/2010
SWITCH GEAR DESIGN #2
SEUM26-6__
b
q
as
gl
cg
k
cu
p
l
SPECIFY PAD UNIT SEPARATELY.
NOTE:
cg
m-n
*******
