ECP REMSDAQ CALLISTO 1 CONTROL UNIT AND RTU INSTALLATION PROCEDURE

Transcription

1 Network(s): Summary: ENGINEERING CONSTRUCTION PROCEDURE ECP REMSDAQ CALLISTO 1 CONTROL UNIT AND RTU INSTALLATION PROCEDURE LPN This document details the installation procedure for the Remsdaq Callisto 1 control unit and RTU used with ground-mounted switchgear in LPN. It includes the physical installation of the control unit and cabling together with installation of the mains supply, earthing, flood alarm, current transformers and fuse carriers. Author: James Ford Approver: Paul Williams Date: 29/11/2018 This document forms part of the Company's Integrated Business System and its requirements are mandatory throughout UK Power Networks. Departure from these requirements may only be taken with the written approval of the Director of Asset Management. If you have any queries about this document please contact the author or owner of the current version. Circulation UK Power Networks External Asset Management UK Power Networks Services Capital Programme Contractors Connections ICPs/IDNOs Health & Safety Meter Operators Legal G81 Website Network Operations Procurement Strategy & Regulation Technical Training THIS IS AN UNCONTROLLED DOCUMENT, THE READER MUST CONFIRM ITS VALIDITY BEFORE USE

2 Revision Record Version 5.0 Review Date 29/11/2023 Date 27/11/2018 Author James Ford Reason for update: Periodic review What has changed: No content changes to document and associated documents. Review dates extended Version 4.1 Review Date 02/09/2018 Date 08/06/2015 Author Lee Strachan Reason for update: Minor version update What has changed: Reference to EDS (withdrawn document) removed Version 4.0 Review Date 02/09/2018 Date 08/06/2015 Author James Ford Reason for update: Periodic review What has changed: Update: correction to wrong terminal number in section 13.7 (Pin No 8 Violet) Version 3.0 Review Date 22/06/2015 Date 03/09/2014 Author James Ford Update: Section 9 - RTU positioning amended to ensure safe egress by operator Version 2.0 Review Date Date 25/02/2011 Author Mariann Grigg Update: Rebranded only No changes Version 1.0 Review Date Date 26/05/2010 Author Stephen Tucker Original based on ex LPN document UK Power Networks 2018 All rights reserved 2 of 27

3 Contents 1 Introduction Scope References Abbreviations and Definitions Callisto 1 RTU Functionality Callisto 1 Description Equipment General Location Multi-core Cables Flood Alarm Current Transformers and Fuse Carriers RMU Plugs Mains Supply Battery Installation and Functional Check Appendix A Parts List Appendix B Fixing Details Figures Figure 6-1 Protocol Converter Front View... 8 Figure 6-2 Protocol Converter Rear View... 8 UK Power Networks 2018 All rights reserved 3 of 27

4 1 Introduction This document details the installation procedure for the Remsdaq Callisto 1 control unit and remote terminal unit (RTU) used with ground-mounted switchgear in LPN. It includes the physical installation of the control unit and cabling together with installation of the mains supply, earthing, flood alarm, current transformers and fuse carriers. Note: The installation of the communications equipment is covered in the commissioning procedure. This procedure shall be carried out in accordance with the requirements of the UK Power Networks Distribution Safety Rules. This procedure shall be carried out having regard to the requirements and recommendations of the manufacturer. If conflict exists between the requirements of the manufacturer and those of UK Power Networks the matter shall be referred to Asset Management (or your UK Power Networks nominated contact). 2 Scope This procedure applies to the Remsdaq Callisto 1 control unit and RTU used in LPN. Refer to ECP for the installation details for other control units. 3 References This procedure should be read in conjunction with the following references: Remsdaq Callisto 1 RTU cabinet drawing 4969/A1/0008. Remsdaq Callisto 1 RTU wiring diagram 4929/A1/0002. This procedure should be used with the following forms: ECP a Remsdaq Callisto RTU Installation Check Form. ECP b Remsdaq Callisto RTU Functional Check Form. ECP c Remsdaq Callisto RTU Defect Report Form. UK Power Networks 2018 All rights reserved 4 of 27

5 4 Abbreviations and Definitions Term ACB CT EFPI GPRS GSM IP PMR RMU RTU Definition Air Circuit Breaker Current Transformer Earth Fault Passage Indicator General Packet Radio Service Global System for Mobile Internet Protocol Private Mobile Radio Ring Main Unit Remote Terminal Unit 5 Callisto 1 RTU Functionality 5.1 The Callisto 1 control unit and RTU is used to provide remote control of high-voltage switchgear on the LPN network. The Callisto 1 contains a micro-processor which controls the ring switches of the ring main units (RMU) enabling rapid supply restoration by either automation or by remote commands issued by the Control Engineer. 5.2 All Callisto 1 RTUs are loaded with the same configuration software. The current software is Callisto Base The Callisto 1 provides the following basic functionality: Remote control and indication of three switches or circuit breakers. The most common use is control and indication of the two switches on a ring main unit (SW1 and SW2). Together with the indication of the circuit breaker used to feed the local transformer (SW3/CB3). Indication for three earth fault passage indicators (EFPI). The EFPIs are referenced to the circuit to which they are fitted, i.e. EFPI 1 is associated with SW1 and EFPI 2 with SW2 etc. The Callisto 1 has a common EFPI reset control. Monitoring other status inputs including a flood alarm and a substation alarm. Monitoring three-phase voltage and current on the cable between the transformer and LV board. Monitoring the percentage harmonic distortion for both current and voltage. UK Power Networks 2018 All rights reserved 5 of 27

6 6 Callisto 1 Description 6.1 A photo of the Callisto 1 cabinet with the main parts identified is shown below. Main processor boards (IoA and IoB) Connection boards (up to 8) Power supply board Terminal rail Power supply toroid Protocol converter 12V lead-acid batteries 6.2 Processing boards boards IoB and IoA are located under the blue cover on the left hand side of the Callisto 1. IoB is the main processing board and has up to 16 digital inputs and 16 control outputs (arranged in control pairs). IoA is the analogue input board and can monitor up to 32 analogue inputs. The sampling rate of the voltage and current inputs is 1.6 khz. IoA is used to monitor the 3 EFPI states. 6.3 Power board is located under the blue cover on the left hand side of the Callisto 1 and contains the battery charger module. It also provides a 12V supply to the backplane. 6.4 Power supply the Callisto 1 is powered by a 230V AC mains supply and two 12V lead-acid sealed batteries. The battery supply provides the high current required to operate the actuator and a backup during mains failure. A power supply toroid converts the mains supply and provides a 32V DC supply to the battery charger board. 6.5 Connection boards there are up eight connection boards (two control, two digital input and four analogue input). The connection boards are used for connecting cables between the Callisto 1 and the switchgear. The Callisto 1 is supplied with the following: Card slot 1 Control board IoCT8 special. Card slot 2 Control board IoCT8 not fitted. Card slot 3 Status input board IoDT8. Card slot 4 Status input board IoDT8. Card slot 5 Analogue input board IoAT9. Card slot 6 Analogue input board IoAT9. Card slot 7 Analogue input board IoAT9 not fitted. Card slot 8 Analogue input board IoAT5 not fitted. UK Power Networks 2018 All rights reserved 6 of 27

7 6.6 Terminal rail is used to terminate connections not taken as direct inputs into the Callisto 1 connection boards second relay is used to switch the 24V positive supply to the actuator following a control command this is to avoid damage to plant/actuators in case of a limit switch failure. 6.8 Protocol converter is used to provide GPRS communication between the control system and the Callisto 1. The protocol converter will be used at all new sites and will be retrofitted at existing sites to upgrade the communication from PMR/GSM to IP (Internet Protocol) over the GPRS (General Packet Radio Service) mobile network. Where no GPRS signal is available PSTN will be used. Existing Configuration New Configuration RS 232 Serial Link Callisto 1 RTU RS 232 Serial Link Callisto 1 RTU Existing Modem (GSM or PMR) Protocol Converter with integrated GPRS Module (IP over GPRS) The protocol converter includes the following interfaces (refer to Figure 6-1and Figure 6-2): Serial communications port, with integral TX and RX communication LED indications for communications connection to the existing Callisto 1. Serial communications port, with integral TX and RX communication LED indications for connection to the existing Callisto 1 configuration/diagnostics port. Ethernet port for direct connection of a PC for configuration or alternatively it may be used for Network Control communications via broadband or other IP network where GPRS coverage is inadequate. GPRS antenna connection. SIM card slot. Power connection suitable for nominal 24V DC input (range 18V to 30V). Health LED indication, Signal strength LED indications, GPRS service LED indications, TX and RX communication LED indications. UK Power Networks 2018 All rights reserved 7 of 27

8 Serial port (Comms) Ethernet port Serial port LEDs LEDs Earth stud LED Earth stud Figure 6-1 Protocol Converter Front View DC power supply and protective earth block SIM card holder Connector for the GSM/GPRS network antenna Figure 6-2 Protocol Converter Rear View UK Power Networks 2018 All rights reserved 8 of 27

9 6.9 Other equipment (current transformer clamps and voltage carriers containing fuses/links as shown below) enable the Callisto 1 to monitor the three-phase current and voltage at the substation. The current transformer clamps and the voltage fuses/links are attached directly to the LV cables between the transformer and the LV board. Note: the current transformer clamps are designed to be removed and replaced safely without the need to short the output. Clip-on CTs Fuse carriers UK Power Networks 2018 All rights reserved 9 of 27

10 7 Equipment 7.1 The following test equipment is required to carry out the work in this procedure: Multi-meter. Insulation resistance tester (e.g. Megger). RMU simulator. 8 General 8.1 The sections that follow cover the installation of the items below in further detail. Cabinet. Multi-core cables. Flood alarm. Current transformers. Fuse links. RMU plugs. Modem. Mains supply. Battery. 8.2 The installation shall be carried out with in accordance with the following: Remsdaq Callisto 1 cabinet drawing 4969/A1/0008 attached to this procedure. Remsdaq Callisto 1 wiring diagram 4929/A1/0002 attached to this procedure. Parts list Appendix A. Fixing details Appendix B. A multi-meter shall be used for continuity checks do not use bell testers, buzzers or Meggers as they may damage the Callisto 1. Cable insulation tests shall be carried out with the wires disconnected from the Callisto 1. UK Power Networks 2018 All rights reserved 10 of 27

11 9 Location 9.1 The positioning of the Callisto 1 cabinet will be determined by the layout of the secondary substation and the space available. The position should be such that an operator has safe egress from the substation after operation which would usually mean a location near the main door of the substation (diagrams below). ACB Transformer Transformer ACB Ring Main Unit RTU LV Board Ring Main Unit Entrance Entrance R T U LV Board RTU Standard Secondary Substation Package Secondary Substation 9.2 Mount the cabinet onto the wall with the top two fixings at a height of 1750mm above floor level and a distance between them of 570mm. Refer to Remsdaq drawing 4969/A1/0008 for details of cabinet and fixings. UK Power Networks 2018 All rights reserved 11 of 27

12 10 Multi-core Cables 10.1 The four multi-core cables used to connect the Callisto 1 to the RMU, CTs and voltage fuses and are all screened cables. These cables have been selected to prevent interference and therefore the correct installation and termination of these cables is essential to ensure correct operation. UK Power Networks 2018 All rights reserved 12 of 27

13 1 M 10.2 To prevent the induction of currents from the earth ring the screened cables should not be run in parallel with the earthing conductor. If it is run in parallel there should be a minimum gap of 1m between them. In some positions where the 1m gap cannot be achieved the parallel run should be kept as short as possible. The screened cable may cross the earthing at right angles as shown below. Screened cable Earthing 10.3 Install a cable tray between the Callisto 1 and the RMU to support the multi-core cables. The cable trays should be constructed on-site to suit the substation arrangement and secured to the wall using 2 HPS 6/5 Hammascrews and to the RMU using cable ties. A basic arrangement is shown below. Dimension to be determined on site approx 800mm Approx 150mm Notes: 100mm Cable Tray Fixing Hole for Earth Strap Fixing Holes This part of rollover to be hammered flat to avoid cable bend 1. Tray work to be earthed via substation earth bar. 2. All cut edges are to be de-burred Run the two mutli-core cables (18c 16/02 and 7c 2.5mm2) from the Callisto 1 and the RMU. Run two further multi-core cables (8c 16/02 and 4c 16/02) from the Callisto 1 and to the CTs and voltage fuses respectively. UK Power Networks 2018 All rights reserved 13 of 27

14 10.5 The cables should be positioned at the Callisto 1 as shown below. All empty holes should be filled using 20mm plastic blanking grommets. RTU base plate viewed from below Front Rear A - 18c 16/02 to 16 Way plug/socket RMU B - 7c 2.5 mm to 6 Way plug/socket RMU C - 2c 1.5 mm2 mains supply D - Spare E - 8c 16/02 to Current sensors F - 4c 16/02 to Voltage sensors G - 4c 7/02 to PIR H-R - Spare S - Aerial or BT line 10.6 Enter the cables into the cabinet using a cable gland the cable gland components and correct position of the screening is shown below. Locking nut Flat washer Rubber 'o' ring Body RTU cabinet Brass top hat Screening Rubber sleeve grip Metal collar Compression ring Multi core cable 10.7 If any of the cores are damaged the cable shall be replaced before continuing. Any spare cores should be tied up and left in the trunking inside the Callisto 1 cabinet and should not be cut off. UK Power Networks 2018 All rights reserved 14 of 27

15 10.8 The sheath of the screened cable shall be removed using an approved knife. Care should be taken to avoid damage to the screening of the cable. If damage to the screening does occur it should be reported to the supervisor who will decide if the cable needs to be replaced All cable terminations shall be stripped using the approved stripping tool (Wire Stripper HB1-U) and no other tool should be used The cable terminations in the Callisto 1, at the CTs and fuse links shall use crimped lugs. The correct size/type of crimp lug or termination method for each cable is shown in the table below and shall be crimped using an approved crimping tool (Crimpstar HP 3 and Crimpstar HP 4). Equipment Cable Crimp Type Callisto 1 18 core 16/02 Insulated End Sleeves P/N PKE 7508 (A) RMU plug box Blue shoe lace crimp Insulated End Sleeves P/N PKE 7508 (A) Blue shoe lace crimp Callisto 1 7 core 2.5mm 2 * Insulated End Sleeves P/N PKE 2508 (A) RMU plug box Grey shoe lace crimp * Insulated End Sleeves P/N PKE 2508 (A) Grey shoe lace crimp Callisto 1 8 core 16/02 Insulated End Sleeves P/N PKE 7508 (A) CTs Blue shoe lace crimp Straight connectors Red Callisto 1 4 core 16/02 Insulated End Sleeves P/N PKE 7508 (A) Fuse Links Blue shoe lace crimp Insulated End Sleeves P/N PKE 7508 (A) Blue shoe lace crimp Callisto 1 2 core 1.5mm 2 flex Insulated End Sleeves P/N PKE 1508 (A) Fused spur Earth cable 70mm 2 earth cable Black shoe lace crimp Screw termination (no crimp) *Note: Cores 1 and 3 from the 7 core 2.5mm 2 cable terminated in terminal 20 shall be terminated using a grey double crimp lug. UK Power Networks 2018 All rights reserved 15 of 27

16 11 Flood Alarm 11.1 If the substation is not equipped with a flood alarm the input needs to be shorted. The flood alarm input is on IoDT8 Card Slot 4, input 3, terminals 5 and 6 as shown below. Flood alarm input short UK Power Networks 2018 All rights reserved 16 of 27

17 12 Current Transformers and Fuse Carriers 12.1 The current transformers (CT) and fuse carriers are fitted to the LV cables between the transformer and the LV board or air circuit breaker (ACB), as shown below, to enable the three-phase current and voltage to be monitored The CTs and fuse links should be fitted as close to the LV board/acb as possible Check the LV cables are dead before carrying out this work Attach three clip-on CTs to the LV phase cables as shown above, with P1 towards the transformer (supply) and P2 towards the LV board/acb (load). Fit a DO NOT REMOVE label on each clip-on CT. Note: The correct CTs are of a voltage output type, designated by the label..xx V output, and may safely be unclipped without shorting the outputs Attach four fuse carriers directly to the LV phase and neutral cables, as shown above, using a self tapping screw (drill size 3mm). Note: Do not install the fuses/links at this stage they should be left locked in the Callisto 1 cabinet for installation during commissioning. A solid link is fitted to the neutral Terminate the cables from the CTs and fuse carriers in the Callisto 1 as shown below Carry out an insulation test of the fuse carry cabling using an appropriate tester. UK Power Networks 2018 All rights reserved 17 of 27

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19 13 RMU Plugs 13.1 The connection between the cables from the Callisto 1 and the RMU use two plugs and sockets. The RMU is delivered with the sockets installed by the manufacturer the 16-way plug/socket is used for the indications/control initiation pulses and the 6- way way plug/socket is used for 24V supplies/indication common On completion of the plug connections DO NOT CONNECT the Callisto 1 to the RMU this is part of the commissioning process The plugs and sockets use a stuffing gland to secure the sheath of the screened cable and the screening should be cut back and insulated using PVC tape as shown below. Rubber Socket to RMU Screening Washers Roll screening back over sheath and insulate Cut off and insulate spare cores Cable PVC tape 13.4 The 16-way plug uses an 18 core 16/02 cable which has colour coded cores and 6- way plug uses a 7 core 2.5mm cable cores are numbered 1 to 6, the seventh core is an earth cable. The two spare cores should be cut back and insulated The earth cable should be cut back in the plug and insulated. UK Power Networks 2018 All rights reserved 19 of 27

20 13.6 Terminate the 7c 2.5mm 2 cable into the 6-way plug and the Callisto 1 as shown below. 6-way Plug Pin No Cable Core No Description Callisto 1 Connection Volt DC supply Terminal rail Volt DC supply switched Terminal rail EFPI reset common Terminal rail volt DC supply Terminal rail Switch indication common Terminal rail 23 (Via 12 Card slot 3) 6 6 EFPI indication common Terminal rail 10 7 Cut back & insulate both ends Terminal rail Terminate the 18c 16/0.2mm 2 cable into the 16-way plug and the Callisto 1 as shown below. 16-way Plug Pin No Cable Core Colour Description Callisto 1 Connection 1 Red Switch 1 open indication Card Slot 3 Terminal 1 2 Blue Switch 2 open indication Card Slot 3 Terminal 5 3 Green CB 3 open indication Card Slot 3 Terminal 9 4 Yellow EFPI 1 indication Card Slot 5 Terminal 21 5 White EFPI 3 indication Card Slot 6 Terminal 23 6 Black Open switch 1 command Card Slot 1 Terminal 8 7 Brown Open switch 2 command Card Slot 1 Terminal 10 8 Violet Open CB3 command Card Slot 1 Terminal 12 9 Orange Switch 1 close indication Card Slot 3 Terminal 3 10 Pink Switch 2 close indication Card Slot 3 Terminal 7 11 Turquoise CB 3 close indication Card Slot 3 Terminal Grey EFPI 2 indication Card Slot 5 Terminal Red/Blue Reset EFPIs command Card Slot 1 Terminal Green/Red Close switch 1 command Card Slot 1 Terminal 9 15 Yellow/Red Close switch 2 command Card Slot 1 Terminal White/Red Close CB3 command Card Slot 1 Terminal 13 Red/Black Cut back & insulate both ends Red/Brown Cut back & insulate both ends UK Power Networks 2018 All rights reserved 20 of 27

21 14 Mains Supply 14.1 The Callisto 1 power supply is provided from an un-switched fused spur connected to a double socket outlet in the substation Check the double socket outlet is dead before carrying out this work Fix the fused spur to the wall below the Callisto 1 as shown below Connect the fused spur to the double socket outlet using 2.5mm 2 single-core stranded cables run in 20mm plastic conduit. These should fixed using standard wood screws, raw plugs, conduit saddles and various other fixings available from stores. The conduit saddles should be fixed using No 10 1½" wood screws or Hilti fixings EDB 8-28mm and the distance between saddles should be 1500mm horizontal and 1750mm vertical Connect the fused spur box to the Callisto 1 using two-core 1.5mm 2 flex via a 20mm plastic gland. The mains supply should be connect to terminals I and 2 on the terminal rail as shown below.. Terminal Block Live Neutral 14.6 Connect a minimum 35mm 2 stranded aluminium or stranded 16mm 2 copper earth cable between the Callisto 1 cabinet and the substation earth. UK Power Networks 2018 All rights reserved 21 of 27

22 15 Battery 15.1 Care should be taken to avoid shorting the battery terminals or shorting the terminals to the Callisto 1 cabinet during installation Early battery types will have horizontal bolts and nuts it is essential that the direction is as shown in the drawing below. Later battery types will have fixings in the vertical plane, avoiding the possibility of the incorrect fixing of bolts potentially resulting in making contact with the cabinet Connect the short leads shown in the diagram below to each battery, whilst the battery is outside the Callisto 1 (e.g. on the floor). BLACK/RED RED BLACK/RED RED Plastic insulator 15.4 Install the batteries into the left-hand side of Callisto 1 cabinet, ensuring that the terminals are clear of the cabinet and any other metal object Connect the two numbered leads together 1 to 1, 2 to 2. Note: The batteries are usually supplied fully charged and will receive additional charge when installed in the Callisto 1 do not attempt to fast charge them by using car battery chargers or paralleling with other batteries. 16 Installation and Functional Check 16.1 Carry out a full installation check using test form ECP a On completion of a successful installation check carry out a functional check as detailed below to ensure that any potential wiring faults are identified and corrected before the Callisto 1 is connected to the RMU for final commissioning Check the communications device, if installed, is disconnected before starting Insert a 5A fuse into the fused spur. UK Power Networks 2018 All rights reserved 22 of 27

23 16.5 Connect the Callisto 1 to RMU simulator (shown below) Check Common Supplies Healthy (shown below) the 24 Volt Supply, EFPI Indication and EFPI Reset Common should be illuminated and the Switchgear Indication Common shouldn't be illuminated. If these are not illuminated check fuses 9 to 12, 20 and 21 in the Callisto Carry out a functional check using test form ECP b. Any faults found during the functional check should be rectified and the functional check repeated. This process should be repeated until functional check is completed successfully If there are defects that cannot be rectified complete a defect report using test form ECP c If instructed, on completion of checks remove 5A mains supply fuse from fused spur and disconnect the batteries Provided there are no outstanding faults the Callisto 1 is now installed ready to commission with the RMU onto the network. UK Power Networks 2018 All rights reserved 23 of 27

24 Appendix A Parts List Deliver To: Work Location: Materials Required By Date Required Instructions for use: Complete ALL of details in the above fields. Job Number Contact Phone No Indicate the quantity of materials required from the Accessories list. Fax the completed form to Bury St Edmunds All of the materials on this sheet will be delivered as indicated above. Standard RTU/RMU change SHEET L8 Description Materials Code 1 Qty RTU Standard Materials Kit Spur fused Un-switched ASHLEY 11181S Plastic back box (single) 05388S Fuse link 5AMP 5PTC 11116F 20mm plastic conduit 05342Y 20mm male adaptor 05369K Washer steel FLAT M O * 6mm yellow crimp lug 14451C Nut hexagon full M8 zinc plated 13091C Washer steel flat M8 zinc plated 13276Y * Nuts brass full 6mm nickel plated 13072U * Screw hexagon M6 x 25mm W * Washer steel FLAT M6 zinc plated 13247H * Gland plastic LK TYPE H Carrier fuse mounted "RTU" Kit 11200V Clamp Amp 0.34 Volt AC C/W 14150U Padlock D101 1 ¼ to pass X L Kit for RTU SET 14460B 16-way cable plug hood (ACB) 01694S 16-way plug female (ACB) 01685T Tube heat shrink MWTM 10/ G Tube heat shrink ATUM 19/ W 1 UK Power Networks materials code for internal use only. UK Power Networks 2018 All rights reserved 24 of 27

25 Description Materials Code 1 Qty Bag site tidy H/D 24X36 C/W A 36115W Remote terminal unit standard A 14465A Flex 1.5mm 2 core white 05306D * Tray cable swift SS TYPE 01522E Batteries YUASA NPL24-12-VRLA A 19085J RMU Standard Jointing Materials Joint transitional vertical 04126B SMOE termination kit 04151D SMOE termination kit (unit) 04150T SMOE termination kit (trans) 04154H SFK right angle boot 04155S Label self-adhesive SF L Label SF6/no smoking rigid 21085B Cantilever arms 01468Q Cleat trefoil 70mm 01495M Cleats trefoil 240mm 01496W Rambolt loose lb S * Cable 120mm 1c PVC Gr/Yellow A 05867D 120mm crimp lugs M10 hole 01373S Set of Lucy lugs 3 per packet 01234K Nuts channel 10mm 13280Y Screw set hex head 10x 25mm 13155P * Accessories Green/Yellow PVC Covered Stranded Copper Cable 16mm 2 A 05847L PVC Covered Aluminium Cable 35mm E Large cable ties (1 bag) 01667V * Medium cable ties (100 per pack) 02232U Small cable ties (1 bag ) 03552P * Split dowel 3/13mm (100 perbox) 01523P Dble dowel 4/12mm (100 perbox) 01477P * Dble dowel 12/25mm (100 per box) 01478Y * Hammerscrew stud (50 per box) 13240P * Hammerscrew (100 per box) 13239T * Dble b/lace ferr 2.5mm grey (500) 34250G * B/lace ferr 1.5mm black (500) 34251R B/lace ferr 2.5mm grey (500) 34252B UK Power Networks 2018 All rights reserved 25 of 27

26 Description Materials Code 1 Qty B/lace ferr 0.02mm blue (500) 34253L In-line connector red (100) 01250N Split dowel 8/28mm (100/ box) 01479J * RTU Cables Cable 2.5mm PVC red (100M) 05853F * Cable 2.5mm PVC black (100M) 05852V * Cable tele 7C 2.5mm PVC (50M) 05188C Cable tele 8c 16/02 DEF (25M) 05187S Cable tele 4c 16/02 DEF (25M) 05186H Cable screened 18C 16/02 (25M) 05189M Cable 2.5mm Y/G Earth (100M) 05843W * HV Cable 300mm XLPE ( x M) A 06006K 95mm XLPE ( x M) A 06004Q Large surgical vinyl treated 34568R Medium surgical vinyl treated 34960T P.F impregnated wipes (tub) A 23104N UK Power Networks 2018 All rights reserved 26 of 27

27 Appendix B Fixing Details The table below details the fixings to be used when installing the equipment. Note: They should only be used in concrete or masonry and not in mortar. Equipment Manufacture Description Drill Size RTU Hilti HPS 18/10 hammascrew with threaded stud 2 cable tray Hilti HPS 6/5 hammascrews 7 core 2.5mm 2 screened cable Hilti EDD 12/25 dowel double clamp Thread length M8x16 Maximum thickness fixed 5mm Cable range 12-25mm 8mm 6mm 6mm 16 core 16/02 screened cable 4 core 16/02 screened cable 8 core 16/02 screened cable Hilti Hilti Hilti EDD 12/25 dowel double clamp EDD 4/12 dowel double clamp EDD 4/12 dowel double clamp Cable range 12-5mm Cable range 4-12mm Cable range 4-12mm 6mm 6mm 6mm 6mm 2 earth cable Hilti EDB 3/13 split dowel Cable range 3-13mm 6mm 20mm conduit Hilti EDB 8-28 split dowel Cable range 8-28mm 6mm The distance between Hilti fixings listed above should be no more than 400mm and 100mm either side of a bend. The Hilti fixings used to support the screened cables should be spaced as shown below. Max 100 mm Max 350 mm Max 350 mm UK Power Networks 2018 All rights reserved 27 of 27