Attachment A - Substation Details SHEET 2

 

4.00 ACCESS

ENERGEX SPECIFICATION

1.0 INTRODUCTION 4.1 Personnel:—

This specification caters for padmounted transformer stations on customers premises within property
and not fronting road reserve

ENERGEX's staff shall have access to the substation af all times without having to enter
security areas. The onus will be on the customer to maintain said access 24 hours a day, 7
days a week.

Padmounted transformer foundations to be built according to site sketch and design

standards contained in this document. A minimum of 2.0 metres of clear access shall be provided in front of the substation cabinet.

This will provide a safe working platform and access around the lockable doors when opened

It is the responsibility of the customer's consultant to ensure that the information contained for emergency operations.

herein is passed on to the relevant contractors.

4.2 Heavy Equipment - Stable Ground Sites:-
2.0 NEGOTIATIONS BETWEEN ENERGEX AND CUSTOMER

1. An application is made to ENERGEX giving information with regards to Padmounted transformers are hauled by flat bed trucks and “Franna” style mobile cranes.

the size and type of load, site plans and drawings, and the location of the required supply Any access or manoeuvring area which will be used for the purpose of off loading or

loading transformers should be constructed to take a minimum loading of 31 tonnes in all

2. If a substation is required, the substation site is agreed upon by ENERGEX and the weather conditions.

customer.

The headroom along the access route is required to be 5.0m with no obstructions over the
crane manoeuvring area. The width of access required for reasonably straight routes

should be increased on bends and in the manoeuvring area near the substation equipment
erapes door required for the off loading of the transformer from the truck by the mobile

3. ENERGEX accepts a site sketch detailing the substation construction details,
specification, standard drawings (An RPEQ approved drawing may be required for structural plans)

4. ENERGEX prepares a Network Connection Contract with a request for payment (if required)
Customer to accept Network Connection Contract and returns with any payment required.

Any reinstatement which may be necessary in the event of damage to concrete slab, paving
5. Customer excavates PMT site, installs foundation and conduit trenches. tiles or road surfaces etc. is the responsibility of the owner of the property.

6. Customer leaves PMT site and conduit trench open for ENERGEX inspection as required.. 5.00 CABLE CONDUITS

7. ENERGEX inspects PMT site and conduit installation, All conduits, associated fittings and bends shall comply with the requirements of AS/NZS 2053

as specified by ENERGEX and shall be supplied and installed by the developer.

Conduits shall be securely sealed by builder to prevent ingress of dirt until cable installation by ENERGEX
and then resealed by ENERGEX. All above ground conduits shall be U.V. stabalised.

8. ENERGEX installs earthing and PMT cubicle

9. Customer installs their LV consumers mains

Refer to ENERGEX Underground Distribution Construction Manual for details of conduit installation

10. Customer reinstates PMT surface with concrete apron surround within the padmount transformer site.

11, ENERGEX energizes substation providing that: Each conduit to be fitted with a 6mm braided polypropylene draw rope.
a. Customer responsibilities are fulfilled.

b. All payments have been received (including storage fee if applicable).
c. ENERGEX has a signed Network Connection Contract.

d. ENERGEX easements secured (if required).

ENERGEX may need fo install an earth wire and earth rods in conduit trenches from the
substation site.

Polymeric cable protection cover shall be placed over all conduits and cables outside the
electricity footpath alignment. To provide protection, electricity supply conduits and cables
shall have polymetric cable protection covers placed 100mm above the top conduit face of the
electricity supply conduits and cables. Cable protection covers shall be lapped when placed
together; 100mm minimum along the logitudinal axis, 40mm minimum along the transverse axis and
shall extend 40mm minimum past the external edges of the conduit/cable bank

3.0 BUILDING GENERAL
3.1 Building Services:-

No services other than ENERGEX’s electric lines and approved parts of the customer's

electrical mains shall pass through or under the substation area. Polymeric cable protection cover shall be a minimum of Smm thick as described in Australian

Standard; AS/NZS 4702 for Polymeric Cable Protection Covers.

The supply of polymeric cable protection covers and marked plastic warning tape shall be

the responsibility of the developer and they shall be manufactured and supplied in accordance
with the ENERGEX Underground Distribution Construction Manual Section C6.

3.2 Workmanship:—

Building work shall be completed in a neat tradesman like manner and shall be as detailed
on the drawings.

6.00 EARTHING
3.3 Construction:- . wig . . .
An earthing system consisting of driven earth rods, a continuous earth ring around the
substation connecting the rods and earthing tails connected to ENERGEX equipment and
gates will be installed by ENERGEX. The earthing system may be required to be extended
into cable trenches adjoining the transformer site

All civil construction works must be undertaken in accordance with the requirements specified in ENERGEX
Work Category Specification WCS61 “Underground Civil Construction”.

The padmounted transformer site shall be prepared by the customer.
An access area of 4800mm x 5000mm is required for cabling, earthing, installation and safe operation of
apparatus. Proposed overhangs must be approved by Energex & be greater than 5.0m above padmount site.

The builder shall notify ENERGEX's works co-ordinator one week prior to trench and site
foundation excavation to allow the installation of the earthing system and location of the
earthing tails for equipment earthing.

The transformer site shall be above the local flood level (Q100/DFL which ever is higher)
with the top of the concrete plinth 25mm above the finished yard level.

Cable apertures through the precast concrete plinth shall be backfilled to 50mm from the top
of plinth.

7.00 CUSTOMER'S CABLES

Where supply is made available from the LV busbars of the transformer, the customer shall
supply all connectors, stainless steel bolts, nuts, washers, cable cleats and supports and
connect to the terminals as directed by ENERGEX.

The concrete slab is to slope away from plinth falling at a slope of 1in 25.

Where supply is made available from a circuit of alow voltage distribution board, the
customer shall supply all connectors, stainless steel bolts, nuts, washers and connect to the
terminals as directed by ENERGEX.

The transformer site shall be level +25mm with a maximum cut and fill of +150 mm and shall
be concreted in accordance with ENERGEX Underground Distribution Construction Manual Sect C3.

Under no circumstances shall the customer cabling pass though or under the padmounted
transformer culvert, nor the culvert end wall “knock-out” sections be removed.

Concrete filled 140mm OD 5.6mm thick galvanised steel pipes may be required outside the site for protection from
vehicles in car parks, etc. Refer to ENERGEX Underground Distribution Construction Manual Section C3.

For a steep sloping site a retaining wall and guard rail will be required to be constructed by 8.00 UNDERGROUND CABLE PITS

the customer. Refer to ENERGEX Underground Distribution Construction Manual Refer to ENERGEX Underground Distribution Construction Manual Section C5 for concrete pits.

9.0 EASEMENTS

The builder/developer is to provide Energex initially with a written undertaking that the easements will granted
so that the project may proceed during the design process. Easement shall cover the HV cable route,
substation site and remote earth grid area (if applicable). The ENERGEX newtwork will not be commissioned until

all the required easements have bee

n registered.

The developer/builder is required to grant the easements as noted on the Easement/Site Plans referred to by Energex
in the Network Connection Contract prior to the supply being made available.

All costs associated with the registering, surveying, document perpetration etc shall be bourne by the builder/

developer.

The builder/developer shall Liaise with Energex's property department in relation to ensuring that
all necessary documentation is completed. Contact Energex Property on [email protected]
including your project reference number.

The following general details will apply:
- all documents shall be acceptable to the Department of Natural Resources

- The grantee should be shown as “Energex Limited (ACN 078 849 055)”

- refer to Memorandum No 708346714 for underground electricity (memorandum is registered with

Natural Resources)

The builder/developer will forward the document to Energex for review and execution. Energex will then
return the documents to the builder/developer for registration with The department of Natural Resources.

The builder/developer is to return a copy of the Registration Confirmation Statement to Energex.

All private services easements must be registered prior to supply being made available to the future

development sites.

10.0 RETAINING WALLS / FENCES

Retaining walls shall be installed where a change in ground level of 300mm or more occurs within 2000mm

of the substation clearance zone. Fences shall be installed for:

- Residential areas (Typically 1200mm high)

- Sloping sites (either front to back or left-right).

Fences and Retaining walls shall be constructed to ENERGEX standards to satisfy minimum clearance zones

of common earth configurations. Refer to section C3-1 for retaining wall construction notes. Alternative
designs to those provided in this manual will require a Civil Engineer's Certification

Safety fences shall comply with the requirements of the Workplace Health and Safety Act,
AS1657 and AS1926 and all amendments.
Metal retaining wall fences shall be used in CMEN areas. (Refer UDCM (3.1 Sheet 6)

All retaining walls and safety fencing on private property shall be maintained by the owner at no cost to Energex.

All fencing materials shall be galvanised or finished in an equally durable manner. All chainwire and support
wires shall be PVC coated and coloured black or green.

All elevated areas shall be provided with toe boards and infill type fencing.

11.00 ENERGEX COMMUNICATION CONDUIT

Conduit

ENERGEX communication conduit shall be white, Medium Duty (MD), UPVC to AS/NZS 2053, Energex Technical Specification TS270 and AS1345
Conduit couplings shall comply with all the above requirements.

Tracer/Draw Rope

The electricity communications conduit when installed shall be fitted with a continuous metallic tracer/draw rope suitable for
passing an electricity current through to accurately identify the conduit

Installation

ENERGEX communication conduit installation:

100mm conduit shall be located adjacent to the top Low Voltage conduits on the kerb side of the trench, between the LV
conduits and any Public Lighting conduit.

CULVERT INSPECTION REQUIRED
BEFORE TRANSFORMER IS DELIVERED
- 5 BUSINESS DAYS PRIOR NOTICE NEEDED.

CONTACT ENERGEX PROJECT CO-ORDINATOR (TBC)

PH: 13 12 53

TRANSFORMER WILL NOT BE ENERGISED

 

UNTIL ALL REQUIREMENTS ARE MET,

 

CONDUIT DETAIL

900 Electricity footpath corridor

 

90

Trench width as required

 

 

wll

Real Property
Boundary

Backfill —~————_

Protection Cover Strip
as required, ——F
(refer Section C6)

Pit sand bedding —/-

LV Cable + Comms [

NkV Cable

 

Finished Footpath
Surface Level

 

300

Electrical

Warning Tape \

500

 

 

1170

 

 

 

Notes:
(1) Energex Communication conduit to be 100mm white located top kerbside.
(2) Power cable conduits to be 125mm orange, light duty.

(3) Separation for conduits - 50mm minimum, up to 160mm desirable.

(3) Increased cover required for road crossings.

(4) Select Backfill and Pit sand bedding complying with ENERGEX UDCM
Section C2
(5) For de-rating factors for cables in duct bank, refer to the Plant Rating
Manual

Note

 

 

ENERGEX will not commision the transformer until the transformer site has

been completed to ENERGEX
surround).

specifications (including the concrete

ENERGEX specifications for construction of the transformer site and
installation of conduits on private property are available at the following web

address.

https://apps.energex.com.au/service_providers/technical_docs/asp/technical

documents.asp

 

Underground Distribution Construction Manual

Section C1 - Conduits

Section C2 - Excavations & Reinstatements
Section C3 - Padmount Transformer Sites

The site contractor is to refer
electrical consultant.

all substation construction queries to their

 

 

 

NOTES:
Real Property 1, Foundation design details are as follows:
Boundaries © Unstable soils are soft clay to sandy gravel with a soil strength
50 - 150 kPa, These soil types REQUIRE a base slab as shown,
® Stable soils are very stiff clay to shale/rock with soil strength of 150KPa
or higher. These soil types DO NOT REQUIRE a base slab.
Lift uniculvert and base slab separately with & x 1.3t Reid Swiftlift lifting eyes.
3. Pasition top face of Uniculvert at finished ground level.
(refer Civil Constructions drawings)
4, Installed Uniculvert shall be level.

5000 Site

| Uniculvert

& Base Slab |

—= Location :
Prtinth |

   
     
 

  

Consumer mains

(See Note 10) 2000mm x 1700mm

Precast Concrete 2
Base Slab ‘
{Unstable soil only)

 

 

 

 

4800 Site

 

 

 

 

 

5. If dep excavation is required under transformer cabinet and in front of
Xe

foundation, plinth front edge shall be propped while excavation remains open.

6, Foundation Components:
1x Uniculvert { Stock Code 19959 )

 

 

2x End Walls { Stock Code 19959 )
1x Base Slab { Stock Code 19960 } ,
Real Property Uniculvert and End Walls come assembled with a Layer of Preformed Sealant
Boundary to the perimeter of the Uniculyert End and between the Mating Surfaces.
oo 7, Gnly remove minimum Knockout Area required to pass Conduits (Max. Conduit
150mm Nom. Dia.) or Cables through uniculyert vaid by tapping out Concrete.
8, Seal between conduits/cables and concrete end wall at knockout interface by
grouting with high strength sand and cement grout after conduit installation
‘0 prevent entry of vermin and backfill ingress to uniculvert void.
9, Excayate to property boundaries to facilitate installation of earth grid,
10. Consumers mains {where present) shall not cross HV mains or run back under

 

 

 

 

 

   
 

  
  

 

 

 

 

Cable Ent transformer.
able Entry
Pla concrete Backfill with bedding
pplied terial and +
Polyethylene with Transformer material and compac
Barriers to front ro in place
of Apertures Uniculvert poses | | \
Foundation Level (Site) j pV fL
Footpath v7 —_ _! bale
LV Electric —
1180 Stable :
Cables 1280 Un-Stable| {1080 Nom. | anerete bose slab

 

 

 

 

 

 

 

 

 

 

 

 

 

 

{Unstable soil only)

t ao
|
| SECTION 7 Compact pit sand or 4
50 Stable E ) mm thick un-reinforce

N25 concrete blinding layer
100 Un-Stable

HV Electric

Cables —_—
Remove Base Slab
in Stable soil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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“lsls 5 DATE 10/10/08 -
2#/$]5 a] 3 energex CIVIL WORKS 6229 4 C
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C3 Index

 

 

 

 

 

 

 

 

 

 

 

 

 

—? sooo NOTE:
RP. Street | Concrete Edge 1. Backfill excavated area with crusher dust,deco or pit sand
Alignment 1300) Beam and compact in place. Ensuring that only pit sand is
Plinth | used around direct laid cables.
x len | "Fall ~~ 2. Reinforced concrete surround slab:
= ; Reinforced concrete 3} joo tesmm thick slab;
a surround slab cast mesh reinforcement in centre of slab;
5 | around plinth c) 25 MPa grade concrete;
e| 2 HV Expansi brane jeint d) Finish by wood float or by nylon broom.
s Fall On xpansion mem rane join
A — Ly y— between plinth and 3. The top face of the concrete surround slab shall be
RN Fat || concrete slab 25mm above the final surface level (when turf is laid).
/ | - | 4. The concrete slab is to slope away from plinth falling
‘Fall Fall at a slope of tin 25.
Cc — — = 5. Cable apertures through the precast concrete plinth
| shall be backfilled to 50mm from the fop of plinth.
A 30mm deep layer of 1:16 ratio weak mix concrete
Un-reinforced 100/125mm PLAN Real Property shall be placed to seal aperture.
thick concrete slab. —_ et Ste) 6. The surface of the surround slab may be finished with
a stencil pattern surface to match the surrounding
pavements of the development. (Use Textcrete or
equivalent product. Construct to supplier's specifications.)
Bottom of plinth Polyethylene

50mm below top of

 

concrete surround

Finished |
Ground :
Level | Fall

 

 

 

barrier to front
of aperture

 

 

 

 

 

 

 

 

 

Backfill & compact
excavated area. |
Refer Note 1. j

Uniculvert
| Foundation

SECTION € : 5

 

 

150mm wide cover ;
strip under concrete |
edge beam and over I
earth grid |

 

SECTION € E )

—|

Concrete edge beam
150 wide x 150 deep
below finished surface
level to perimeter,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a] B BE UNDERGROUND DISTRIBUTION CONSTRUCTION MANUAL [APP'°__ RENGLISH CAD
21s is cfu DATE 10/10/08 ? 759- C
2(s/2| |S/Ee5 energex = |CiVIL WORKS L622 A
SLHE Bisse. ©COPYRIGHT 2014 ENERGEX RECD SECTION | SUB-SECT,
erzye| |s|2228 ere eer] PADMOUNT TRANSFORMER SITES ant 3 | 25
th Jlelele REaE role wcnout gritten | SQUARE TYPE - SHT 1 __0F4
s|slelzzBa permission fromENERGEX — | CONCRETE SURROUNDS DWN _FAMANPOOR Fie UDC-C3-2.5-1C. DWG
C3 Index

 

 

 

 

 

 

 

 

 

 

 

 

TALS LLU IMUM AAR

 

 

NOT FOR CONSTRUCTION

 

THIS DRAWING IS  AND IS NOT TO BE REPRODUCED IN
ANY FORM AS A WHOLE OR IN PART WITHOUT THE EXPRESS
WRITTEN AUTHORITY OF MULTITECH SOLUTIONS. THIS DRAWING IS.
NOT TO BE USED PREJUDICIAL TO THE INTEREST OF MULTITECH
SOLUTIONS.

THIS DRAWING CONTAINS PATENTS PENDING AND INTELLECTUAL
PROPERTY OWNED BY MULTITECH SOLUTIONS.

© COPYRIGHT. ALL RIGHTS RESERVED

 

NOTE :
SYMBOLS ARE NOT SHOWN TO SCALE.
REFER TO ARCHITECTURAL DRAWINGS FOR THE FINAL SET OUT.

 

 

 

 

 

 

 

 

 

 

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SURF LIFE
SAVING CLUB

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PROJECT:

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SERVICE

ELECTRICAL SERVICES

 

TITLE:

SUBSTATION PLAN AND DETAILS
SHEET 2

      
  

SCALE:

1:100

ORIGINAL SIZE: A1

   
 

DATE:
JAN 2019
DRAWING NO.

6524 E 161

REVISION:

P1