CONTENTS AND SERVICES

Transcription

1 CONTENTS 1 LV MAINS AND SERVICES 1.1 Scope Definitions Introduction Design Information Construction Information 6 Appendix A GA Drawings and Materials Mains 11 Appendix B GA Drawings and Materials Services 30 Appendix C GA Drawings and Materials Pole-Mounted Equipment 39 Appendix D GA Drawings and Materials Earthing 48 Appendix E Data for,, 4 x 120mm 2 52 Appendix F Data for,, 4 x 95mm 2 55 Appendix G Data for,, 2 x 95mm 2 58 Appendix H Data for,, 4 x 35mm 2 61 Appendix I Data for,, 2 x 35mm 2 63 Appendix J Service Spans 66 Appendix K Un-stayed Supports 68

2 1.1 SCOPE All new or substantially altered Aerial Bundled lines shall be designed and constructed to this section. When working on existing lines that are not being substantially altered, legacy design standards will apply. LV structures can be considered as one of three distinct types for design and construction purposes: LV distribution networks supported on wood poles. LV service connections (excludes terminations within property). LV pole-mounted equipment. LV supported on buildings The above types of construction comprise of the number of cores and cross-sectional areas shown below:,, 2x35mm 2.,, 2x95mm 2.,, 4x35mm 2.,, 4x95mm 2.,, 4x120mm 2. Note: This construction section is not an instruction manual for safe erection of an overhead line, nor is it a standalone tender document. It should be used in conjunction with the Overhead Line Craft Manual and in accordance with the relevant specific job instruction. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 1

3 1.2 DEFINITIONS Term CNE EDS ENA TS FoS GA JCs LV IPC Manufacturer MWT NI PME SJI UKPN XLPE Description Aerial Bundled Combined Neutral Earth Every Day Stress Energy Networks Association Technical Specification Factor of Safety General Arrangement Job Cards Low Voltage Insulation Piercing Connector An Organisation Supplying Equipment for use on UK Power Networks Networks Maximum Working Tension Not Illustrated (i.e. item numbers on Figures) Protective Multiple Earthing Specific Job Instructions UK Power Networks Cross-linked Polyethylene Page 2 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

4 1.3 INTRODUCTION This section covers general design and construction requirements. How to construct and maintain is detailed in the Overhead Line Craft Manual. Appendix A to C of this section comprises of General Arrangement (GA) drawings with associated lists of materials for LV structures as follows: Appendix A comprises GAs for LV distribution networks supported on wood poles. Note: 'inside' and 'outside' angles are not as defined in ENA TS 'Insulated Aerial Bundled s Erection Requirements for Low Voltage Overhead Distribution Systems'. Appendix B comprises GAs for LV service connections, followed by a GA summarising and CNE service spans. Appendix C comprises GAs for LV pole-mounted equipment. Appendix D comprises GAs for earthing requirements. Each list of materials identifies the components included in the associated GA and which supplementary items are needed to complete that structure. Variations within each GA for different conductors are covered by different columns in the associated list of materials. Note: The lists of materials for the connections and plant shown in Appendix B and Appendix C do not include the materials for the associated GA structure; many combinations are possible and it is not practical to cover every possible structure/connection variation here (refer to Appendix A for approved GA structures and materials.) Appendices E to K are tables of design data for this section. Each appendix relates to a separate type. This section fits into the overall design and construction process as outlined by the following summary: 1. Carry out a risk assessment. 2. Generate a proposal taking into account the risk assessment. 3. Generate a proposal for a new line. 4. Choose a proposed route and carry out a line survey. 5. Plot pole positions, heights and clearances (clearance shall comply with ENA TS 'OHL Clearances'), and develop a line profile. Note: The development of a line profile will require some data and parameters from Appendix E and subsequent appendices. 6. Compile a list of materials using the GAs and supplementary items identified in this section (Appendix A, Appendix B, Appendix C.) The GAs and supplementary items shall be selected and used in accordance with the design and construction information within this section, and the data given in subsequent appendices. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 3

5 1.4 DESIGN INFORMATION General Practice Risk Assessment Earthing Design Data Constraints on the Lengths of Main Integration with Existing Lines General Practice Lines shall be designed using the GAs and supplementary items from Appendix A, Appendix B, Appendix C and the data from Appendix E to K. The following information shall be taken into account during the design process Risk Assessment A risk assessment shall be carried out at the commencement of the design work to identify the site specific safety hazards. The design shall incorporate mitigation measures to control the risks, identified in the risk assessment, associated with the construction, operation and maintenance of the proposed overhead line and its suitability compared with an underground cable solution Earthing System earthing and bonding shall be in accordance with Section 3 Earthing and Bonding, of the Overhead Line Craft Manual. To provide a PME network, the connection from the neutral of the bundle to the earth electrode(s) shall be installed and connected in accordance with the drawings given in Appendix D (the PME connections are split across two drawings because all pole-mounted equipment GAs incorporate connections from bundle neutral to neutral/earth as mandatory requirements) Design Data Each set of design data (Appendix E to K) contains all the information necessary for the conductor bundle specified, with the exception of poles supporting electrical plant. Design parameters used to construct the tables of design data are given for reference. Note: The basic span for this design is 50m. If is to be installed onto an existing pole, it is then assumed that the pole depth will be 1500mm. The maximum wind span shall then be limited to the figures supplied in each appendix. If an existing pole has to be changed due to decay or clearance problems then refer to tables for planting depth for new build. For poles supporting electrical plant, pole loadings should be re-calculated as necessary. Note: 1000kg additional weight can be approximated to 1000kgf additional loading for this purpose. Data in Appendix E to I are based on the minimum pole diameters included in BS In practice, if it is found that pole loadings exceed the values given in Appendix E to I the minimum pole-top diameter needs to be re-calculated. Maximum service spans shall be in accordance with Figure B5 Concentric Service Spans and Figure B6 Service Spans. Page 4 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

6 1.4.5 Constraints on the Lengths of Main The maximum length of is limited by earth loop impedance, the size of the supplying fuse and the transformer size in order to ensure that faults at the remote end are cleared in correct time. Reference should be made to the EDS 'LV Network Design Standard' for voltage drop and loop impedance constraints when designing LV networks Integration with Existing Lines When a new section of line is installed within an existing line, consideration must be given to the differences in line tensions that may occur. Refer to Section 5 LV Open Wire for legacy conductor data and engineering data. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 5

7 1.5 CONSTRUCTION INFORMATION General Practice Supports Clearances Overview of Clearances Tree Clearences Low Voltage Supports Augering Foundations Stays In-line Connections Plumbing LV Poles Connections to the Bundle Overview of Connections to the Bundle Service Connections Mains Connections Limit on Number of Connections to the Bundle Disconnections from the Bundle Open Points Weak Links and Trees General Practice Construction practices shall be in accordance with this Manual. For reference, phases and neutral shall be identified by the number of ribs on the insulation as follows: Phase L1 1 rib. Phase L2 2 ribs. Phase L3 3 ribs. Neutral fully ribbed. Note: This applies whenever is used e.g. when neutral is run down the pole for connection to the neutral/earth connection mm minimum Page 6 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

8 Supports All fittings supporting the system shall provide an insulating barrier rated at 1000V between the core insulation and the mechanical attachment. The shall be attached in such a manner that it cannot make contact with any steelwork or stays. Weak links will be used on all poles where there is the risk of falling trees, except for the following: Terminal, Section and Angle Poles When crosses highways/carriageways, footpaths, navigable waterways and railway tracks Clearances Overview of Clearances Clearances from external objects and structures (e.g. buildings, trees and roads) shall comply with Section 2 Safety Aspects, Procedures, Tools and Equipment, of the Overhead Line Craft Manual. In addition to this, the following rules shall be followed: 1. Wherever possible, conductors shall not pass directly over buildings and roofs. 2. Wherever it is necessary to over sail a building or roof, the relevant span shall not contain any mid-span joints. 3. Where is attached to a building which has a thatched roof, the attachment shall be a minimum of 0.5m from the thatched roof. 4. Once terminated, shall be converted to concentric cable or insulated and sheathed (mechanically protected) cable within 0.5m of the point of attachment to a building. Service cable lead-ins into the building shall be installed in accordance with the Overhead Line Craft Manual Section 6 Erect s and Pole-top Equipment Tree Clearances Where an system is erected through trees, the following points shall be considered: 1. For additional information regarding overhead line clearances, refer to Overhead Line Craft Manual Section 2 Safety Aspects, Procedures, Tools and Equipment. 2. Risks of the being abraded by trees. 3. Sag variations and conductor swing due to the effects of the wind. 4. The effect of wind and snow loading on trees or branches bearing onto the. 5. The danger of trees providing climbing access. 6. The amount of tree cutting required for compared with conventional open wire systems can be significantly reduced. However, the XLPE insulation is susceptible to abrasion and shall not be allowed to come into contact with tree trunks, mature branches or heavy outer growth, under any circumstances. 7. Clearances through trees shall take account of maximum and minimum conductor sags, conductor swing and the anticipated tree growth rate and cutting periods Low Voltage Supports All supports shall be fitted with a Safety Sign (Danger of Death) in accordance with EDS Safety Sign and Identification labelling of Equipment. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 7

9 1.5.4 Augering Augering the pole hole is the preferred method when the ground is suitable. After pole erection, the remaining hole shall be backfilled with suitable material based on soil condition. If there is a risk of movement due to poor soil conditions, then a suitable cement mixture shall be used Foundations Un-stayed angle poles shall be installed 0.5m deeper than the planting depth given in the appendices to this section (care shall be taken when planning un-stayed angle poles, particularly near walls) Stays Generally 7/3.2mm (grade 1150) stay wire and Type 1 stay anchors are suitable for lines designed to this specification. However, on 120 terminal and angle poles over 60 o where the stay spread is less than 35 o then 7/4.0 stay wire and Type 2 stay anchors are required. All stays shall be fitted with a stay insulator. Only the following types of stay are suitable for lines designed to this specification: Load-lock anchors (Light) (50% of Type 1) Screw-in (Type 2 ) Concrete blocks: Type x 300 x 90mm Type x 430 x 140mm Heavy duty stay plates are useful for structures of restricted height: the overall distance between the fixing at the top of the pole and the stay insulator is less than that of an equivalent pole-top make-off. The distance of the stay-base from the pole-base are given in Appendix E I In-line Connections Compression fittings shall be used for all tension and in-line non-tension connections (under no circumstances shall IPCs be used to make in-line connections) Plumbing LV Poles When LV poles are re-conductored they must be squared and fully plumbed level not left off center. Any poles that are leaning greater than 5 o and construction works are being carried out within the vicinity must be re-plumbed to as close to 0 o as possible. Page 8 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

10 1.5.9 Connections to the Bundle Overview of Connections to the Bundle Only to connections to the conductor bundle are permitted Service Connections For single-phase and three-phase connections to 95mm 2 and below, one single-bolt IPC shall be used on each phase conductor and two single-bolt IPCs shall be used on the neutral/earth conductor. For single-phase and three-phase connections to 120mm 2, one double-bolt IPC shall be used on each phase conductor and two double-bolt IPCs shall be used on the neutral/earth conductor (as illustrated in the appropriate GAs). Table 1 Number of IPCs Required for Mains and Service Connections Scenario Phase Neutral 120mm² Mains or Service 1 double bolt IPC 2 double bolt IPCs 95mm² Mains or Service 1 single bolt IPC 2 single bolt IPCs 35mm² Mains or Service 1 single bolt IPC 2 single bolt IPCs Mains Connections For all mains connections to 95mm 2 and below, one single-bolt IPC shall be used on each phase conductor and two single-bolt IPCs shall be used on the neutral/earth conductor. For all mains connections to 120mm 2, one double-bolt IPC shall be used on each phase conductor and two double-bolt IPCs shall be used on the neutral/earth conductor (as illustrated in the appropriate GAs) Limit on Number of Connections to the Bundle Only two single-phase or two three-phase connections to the bundle are permitted at any pole position. If this number of connections is to be exceeded then a distribution box is to be provided Disconnections from the Bundle IPCs shall not be removed from the bundle. Disconnections shall be made on the tail. Refer to Section 6 of the Overhead Lines Craft Manual for method of disconnection Open Points Fuse Links are to be used when creating or replacing an open point. Refer to Figure C2 to via Fuses GA Weak Links and Trees Where is erected within falling distance of adjacent trees, provision shall be made to protect the conductor and pole supports by fitting weak links (stores code 09385F) between the pole hook and the suspension clamp on intermediae poles. Weak Links shall not be fitted on: Terminal, Section and Angle Poles. When crosses highways/carriageways, footpaths, navigable waterways and railway tracks. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 9

11 Table 2 Service Connections Service Connections (Pole End) A B Connector Type Stores Catalogue Description and Code Size Type Size Type 16mm 2 25mm 2 35mm 2 35mm 2 Copper tail Copper tail aerial aerial 25mm 2 25mm 2 35mm 2 25mm 2 Service Connections (Property End) Concentric cable Aluminium Phase Concentric cable Aluminium Phase Concentric cable Aluminium Phase Copper Neutral Concentric cable Aluminium Phase Copper Neutral Bi-Metal Compression Joint Bi-Metal Compression Joint Pre-Insulated Compression Joint Bi-Metal Compression Joint Pre-Insulated Compression Joint Bi-Metal Compression Joint Connector Bimet Service 25 HDAL 16 CU 09209S Joint Bimetal MEP/U25-16/S (100033) 08642K Joint Bimetal MEP/U25-25/S (100035) 08643U 35mm 2 to 35mm 2 Service Compression Fitting (MJPB) 35) 08755F 35mm to 25mm Bare CU Compression Joint 08776H 35mm 2 to 25mm 2 Service Compression Fitting (MJPB 35-25) 08756Q 35mm to 16mm Bare CU Compression Joint 08775X A B Connector Type Stores Catalogue Description and Code Size Type Size Type 35mm 2 35mm 2 aerial aerial 25-35mm 2 22mm 2 25mm 2 Ali tail 22-25mm 2 35mm 2 35mm 2 35mm 2 aerial aerial aerial Concentric lead-in Aluminium Phase Copper Neutral Double Insulated Aluminium Concentric lead-in Double Insulated Aluminium Pre-Insulated Compression Joint Bi-Metal Compression Joint Pre-Insulated Compression Joint Pre-Insulated Compression Joint 16mm 2 Copper Bi-Metal Service Compression Joint 25mm 2 Copper Bi-Metal Service Compression Joint 32mm 2 Copper Bi-Metal Service Compression Joint 35mm 2 to 25mm 2 Service Compression Fitting (MJPB 35-25) 08756Q 35mm 2 to 16mm 2 Service Compression Fitting (MJPB 35-16) 08757A Bimet Service 25 AL 16 CU 08642K 35mm 2 to 25mm 2 Service Compression Fitting (MJPB 35-25) 08756Q 25mm 2 AL-25mm 2 Service Compression Fitting 09213S 35mm to 16mm Bare CU Compression Joint 08775X 35mm to 16mm Bare CU Compression Joint 08765P 35mm to 25MM Bare CU Compression Joint 08776H 35mm to 32mm Bare CU Compression Joint 08766Y Page 10 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

12 APPENDIX A GA DRAWINGS AND MATERIALS MAINS Figure Figure A1 Figure A2 Figure A3 Figure A4 Figure A5 Figure A6 Figure A7 Figure A8 Figure A9 Figure A10 Drawing Title General Drawing Arrangement Stay Arrangement, Make-off (No Auxiliary Pole-Mounted Equipment) Stay Arrangement, Make-off (Restricted Height or Auxiliary Pole-Mounted Equipment) Stay Arrangement, Stay Plate (Restricted Height, Auxiliary Pole-Mounted Equipment or Live Line Working) Intermediate GA (Outside Angle up to 30 o Line Deviation) Intermediate GA (Inside Angle up to 30 o Line Deviation) Angle Section GA (up to 20 o Line Deviation) Angle Section GA (20 o to 90 o Line Deviation) Terminal GA Tee-off Intermediate GA Figure A1 General Drawing Arrangement Bundle Safety Sign Minimum of 1800mm UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 11

13 Figure A2 Stay Arrangement, Make-Off (No Auxiliary Pole-Mounted Equipment) mm , 5 6 Datum 7 Note: For details on stay spreads refer to Appendix E, F, G, H and I. Page 12 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

14 Materials for Figure A2 Ref No. Component Light Duty Arrangement UK Power Networks Stores Code 1 Pole-top make-off (7/3.25mm) 08244Y 1 Galvanised wire staples (NI) ** 13673A 2 Guy grip dead-end (7/3.25mm) 08233F 3 Insulator stay LV ENA TS type 1 110kN 08911W 4 Stay wire 7/3.25mm 1150 grade 13816S 5 Steelwork thimble stay type P 6 Adjustable stay rod (type 1) 09734H 6 Stay marker (NI) *** 08290D 7 Concrete stay block 08101C 6 and 7* 2x Anchor stay load lock 09445D 6 and 7* Anchor stay screw-in 10" single helix 08720F 6 and 7* Turnbuckle assembly 3/4" helix anchor light 08731Y 6 and 7* Anchor stay screw-in 12" single helix 08721Q 6 and 7* Anchor stay screw-in 14" single helix 08730P * The most appropriate anchor system shall be selected. ** Staples shall be used to secure the pole-top make-off to the pole. *** Where required. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 13

15 Figure A3 Stay Arrangement, Make-off (Restricted Height or Auxiliary Pole-Mounted Equipment) mm Minimum 4, 6 7 Datum 8 Note: For details on stay spreads refer to Appendix E, F, G, H and I. Page 14 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

16 Materials for Figure A3 Ref No. Component Light Duty Arrangement UK Power Networks Stores Code 1 Pole-top make-off (7/3.25mm) 08244Y 1 Galvanised wire staples (NI) ** 13673A 2 Splice line stay wire 08246T 3 Stay wire 7/3.25mm 1150 grade 13816S 4 Guy grip dead-end (7/3.25mm) 08233F 5 Insulator stay LV ENA TS type 1 110kN 08911W 6 Steelwork thimble stay type P 7 Adjustable stay rod (type 1) 09734H 7 Stay marker (NI) *** 08290D 8 Concrete stay block 08101C 7 and 8* Anchor stay load lock 09445D 7 and 8* Anchor stay screw-in 10" single helix 08720F 7 and 8* Turnbuckle assembly 3/4" helix anchor light 08731Y 7 and 8* Anchor stay screw-in 12" single helix 08721Q 7 and 8* Anchor stay screw-in 14" single helix 08730P * The most appropriate anchor system shall be selected. ** Staples shall be used to secure the pole-top make-off to the pole. *** Where required. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 15

17 Figure A4 Stay Arrangement, Stay Plate (Restricted Height, Auxiliary Pole-Mounted Equipment or Live-line Working) 1 2, mm Minimum 2, 3 6 Datum 7 Note: For details on stay spreads refer to Appendix E, F, G, H and I. Page 16 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

18 Materials for Figure A4 Ref No. Component Light Duty Arrangement UK Power Networks Stores Code 1 Stay plate 08161E 1 Bolt M20 length 260mm c/w hex full nut (NI) 13632F 1 Washer square curved M20 (NI) 13801K 2 Guy grip dead-end (7/3.25mm) 08233F 3 Steelwork thimble stay type P 4 Stay wire 7/3.25mm 1150 grade 13816S 5 Insulator stay LV ENA TS type 1 110kN 08911W 6 Adjustable stay rod (type 1) 09734H 6 Stay marker (NI) *** 08290D 7 Concrete stay block 08101C 6 and 7* Anchor stay load lock **** 09445D 6 and 7* Anchor stay screw-in 10" single helix 08720F 6 and 7* Turnbuckle assembly 3/4" helix anchor light 08731Y 6 and 7* Anchor stay screw-in 12" single helix 08721Q 6 and 7* Anchor stay screw-in 14" single helix 08730P * The most appropriate anchor system shall be selected. ** Staples shall be used to secure the pole-top make-off to the pole. *** Where required. **** Two Load Lock anchors and staywires are required to match the rating of a concrete block or screw-in anchor. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 17

19 Figure A5 Intermediate GA (Outside Angle up to 60 o Line Deviation) 7 Alternative arrangement showing weak link to be used on Alternative arrangement showing weak link on straight line unstayed intermediate poles only intermediate poles only. 1 Note: Refer to for guidance on applications MAX Page 18 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

20 Materials for Figure A5 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 4x35mm 2 2x95mm 2 1 Nut M20 open-ended hook 09375W Universal suspension clamp 08869L Washer square curved M K Bolt M20 * Wood pole * Weak Link 09385F Notice danger of death (NI) 20010P Supplementary Components Needed to Complete the Structure 6 Stay * As required Notices (NI) * As required * Select to fit size of pole and conductor to be erected. 2x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 19

21 Figure A6 Intermediate GA (Inside Angle up to 30 o Line Deviation) MAX Page 20 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

22 Materials for Figure A6 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 4x35mm 2 2x95mm 2 1 Steelwork hook outrigger pole 09376G Universal suspension clamp 08869L Washer square curved M C Bolt M20 320mm 13341G Wood pole * Notice danger of death (NI) 20010P Supplementary Components Needed to Complete the Structure 6 Stay * As required Notices (NI) e.g. pole number * As required * Select to fit size of pole and conductor to be erected. 2x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 21

23 Figure A7 Angle Section GA (up to 20 o Line Deviation) , 5 10 MAX Page 22 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

24 Materials for Figure A7 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 4x35mm 2 2x95mm /50mm 2&4 Core Anchor Clamp 08853T /95mm 2&4 Core Anchor Clamp 08854D mm 4 Core Anchor Clamp 08861H Bolt eye M20 300mm 13652X mm 2 compression splice non-tension 95mm 2 compression splice non-tension 120mm 2 compression splice non-tension 08740X C M Washer square curved M K Nut eye M W Wood pole * Notice danger of death (wood poles) (NI) Supplementary Components Needed to Complete the Structure 7 Stay * As required 8 Plastic cleat * As required Notices (NI) e.g. pole number * As required * Select to fit size of pole and conductor to be erected P x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 23

25 Figure A8 Angle Section GA (20 o to 90 o Line Deviation) Page 24 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

26 Materials for Figure A8 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 4x35mm 2 2x95mm /50mm 2&4 Core Anchor Clamp 08853T /95mm 2&4 Core Anchor Clamp 08854D mm 4 Core Anchor Clamp 08861H Bolt eye M20 300mm 08052X Washer square curved M C Wood pole * Notice danger of death (wood poles) (NI) Supplementary Components Needed to Complete the Structure 5 Stay * As required Notices (NI) e.g. pole number * As required * Select to fit size of pole and conductor to be erected P x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 25

27 Figure A9 Terminal GA Page 26 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

28 Materials for Figure A9 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 4x35mm 2 2x95mm /50mm 2&4 Core Anchor Clamp 08853T /95mm 2&4 Core Anchor Clamp 08854D mm 4 Core Anchor Clamp 08861H Bolt eye M20 300mm 08052X heatshrink end cap (35 to 120mm 2 ) 08881A Washer square curved M C Wood pole * Notice danger of death (wood poles) (NI) Supplementary Components Needed to Complete the Structure 6 Stay * As required Notices (NI) e.g. pole number * As required * Select to fit size of pole and conductor to be erected P x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 27

29 Figure A10 Tee-off Intermediate GA Note: This drawing illustrates connections for a 120mm 2. For connections of 95mm 2 and below refer to the material lists , 6 Page 28 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

30 Materials for Figure A10 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 4x35mm 2 2x95mm 2 2x35mm 2 1 Universal suspension clamp 08869L Nut M20 open-ended hook 09375W mm 2 to 35mm 2 single bolt IPC connector 95mm 2 to 95mm 2 single bolt IPC connector 120mm 2 to 120mm 2 double bolt IPC connector 08845E P J /50mm 2&4 Core Anchor Clamp 08853T /95mm 2&4 Core Anchor Clamp 08854D mm 4 Core Anchor Clamp 08861H Bolt eye M20 300mm 13652X Washer square curved M K Wood pole * Notice danger of death (wood poles) (NI) 20010P Supplementary Components Needed to Complete the Structure 8 Stay * As required Cable tie (NI) 03552P As required Plastic cleat (NI) * As required Notices (NI) e.g. pole number * As required * Select to fit size of pole and conductor to be erected. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 29

31 APPENDIX B GA DRAWINGS AND MATERIALS SERVICES Figure Figure B1 Figure B2 Figure B3 Figure B4 Figure B5 Figure B6 Drawing Title Service Connection (Three-phase) GA Concentric Service Connection GA Insulated Open Wire Service Connection GA Street Lighting Service Connection GA Concentric Service Spans Service Spans Figure B1 Service Connection (Three-phase) GA Note: This drawing illustrates connections for 95mm 2 and below. For connections of 120mm 2 and below refer to the material lists Page 30 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

32 Materials for Figure B1 Ref No. Component UK Power Networks Stores Code 4x120mm 2 4x95mm 2 1 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 to 35mm 2 single bolt IPC connector 08845E mm 2 to 95mm 2 single bolt IPC connector 08846P mm 2 to 120mm 2 double bolt IPC connector 08848J Pole hook M20 x 320mm 09372S /50mm 2&4 Core Anchor Clamp 08853T /95mm 2&4 Core Anchor Clamp 08854D mm 4 Core Anchor Clamp 08861H Supplementary Components Needed to Complete the Structure 5 Plastic cleat * As required 6 Cable tie 03552P As required 4x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 31

33 Figure B2 Concentric Service Connection GA (3ph service cable shown) Note: This drawing illustrates connections for 95mm 2 and below. For connections of 120mm 2 refer to the material lists Materials for Figure B2 (Single Phase) Ref No. Component UK Power Networks Stores Code 1 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 to 95mm 2 service single bolt IPC connector 08845E 3** 50mm 2 to 150mm 2 service single bolt IPC connector 08847Y 3** 3 fitting non-tension * 2 4 Cable termination break-out kit 2-core 02164H mm 2 single phase service cable 05886L L* 6 fitting helical dead-end CNE 1-phase * 1 7 Insulator coach screw service 08927P 1 L* Length as required. * Select to match and service cable conductor size. ** Select to fit. CNE 1-phase 35mm 2 Page 32 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

34 Materials for Figure B2 (Three Phase) Ref No. Component UK Power Networks Stores Code 1 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 to 95mm 2 service single bolt IPC connector 08845E 3** 50mm 2 to 150mm 2 service single bolt IPC connector 08847Y 3** 3 fitting non-tension * 4 4 Cable termination break-out kit 4-core 02317J mm 2 3-phase service cable 05903U L* 6 fitting helical dead-end CNE 3-phase 08243P 1 7 Insulator coach screw service 08927P 1 Supplementary Components Needed to Complete the Structure for 3phase and Single 1phase Services CNE 3-phase 35mm 2 8 Plastic cleat * As required 9 Cable tie 03552P As required L* Length as required. * Select to match and service cable conductor size. ** Select to fit. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 33

35 Figure B3 Insulated Open Wire Service Connection GA Note: This drawing illustrates connections for 95mm 2 and below. For connections of 120mm 2 refer to the material lists Page 34 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

36 Materials for Figure B3 Ref No. Component UK Power Networks Stores Code 1 2x35mm R L* 2x95mm L L* 4x35mm Q L* 4x95mm K L* 4x120mm U L* 2 35mm 2 to 35mm 2 single bolt IPC connector 08845E ** 95mm 2 to 35mm 2 single bolt IPC connector 08847Y ** 95mm 2 to 95mm 2 single bolt IPC connector 08846P ** 120mm 2 to 35mm 2 double bolt IPC connector 08848J ** 120mm 2 to 95mm 2 double bolt IPC connector 08848J ** 120mm 2 to 120mm 2 double bolt IPC connector 08848J ** 3 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 tail 400mm long transformed insulated wire non-tension 95mm 2 tail 400mm long transformed insulated wire non-tension 120mm 2 tail 400mm long transformed insulated wire non-tension * *** * *** * *** 5 Insulator coach screw service 08927P 4 6 fitting helical dead-end * 4 Supplementary Components Needed to Complete the Structure Insulated Open-wire 7 Plastic cleat * As required 8 Cable tie 03552P As required L* Length as required. * Select to fit insulated wire. ** Select to fit (5 required for three-phase; 3 required for single-phase). *** 4 required for three-phase; 2 required for single-phase. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 35

37 Figure B4 Street Lighting Service Connection GA Note: This drawing illustrates connections for 95mm 2 and below. For connections of 120mm 2 refer to the material lists. The lamp, control gear and tails are the property of the local Street Lighting Authority Page 36 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

38 Materials for Figure B4 Ref No. Component UK Power Networks Stores Code 1 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 to 95mm 2 single bolt IPC connector 08845E * 120mm 2 to 35mm 2 double bolt IPC connector 08848J * 3 2x35mm R L* 4 35mm 2 to 16mm 2 bare Cu compression splice 08765P 1 35mm 2 to 16mm 2 service compression splice 08757A 1 5 Cable termination break-out kit 2-core 02164H 1 6 4mm 2 Cu Concentric 1-phase service Cable 05860K L* 16mm 2 Al Concentric 1-phase service Cable 05574K L* 7 Service box cut-out (diamond) 08361U 1 Cut-Out Street Lighting PME 25 Amp 12000K 1 Supplementary Components Needed to Complete the Structure All 8 Plastic cleat * As required 9 Local Authority Street Light Tails * As required L* Length as required. * Select to fit. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 37

39 Figure B5 Concentric Service Spans 30m (maximum) Single Phase 20m (maximum) 3 Phase 30m (maximum) Single Phase 20m (maximum) 3 Phase Figure B6 Service Spans 30m (maximum) Single Phase 30m (maximum) 3 Phase 70m (maximum) Single Phase 70m (maximum) 3 Phase Service Clearances Table Service Clearances Location Along the line of hedgerows, fences and boundary walls etc. 4.0 Domestic driveways with an access width of 2.5m or less, which is defined by gateposts, hedges or other fixed features Between buildings where there is no vehicular access 3.5 Normal ground 3.5 Minimum Clearance (m) 4.3 Page 38 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

40 5.3 APPENDIX INSTALLING C GA AUGER DRAWINGS STAYSAND MATERIALS POLE-MOUNTED EQUIPMENT Figure Figure C1 Figure C2 Figure C3 Figure C4 Drawing Title to Two Distribution Boxes to via Fuses GA Intermediate with Cable Termination and LV Fuses GA Terminal with Cable Termination and LV Fuses GA UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 39

41 Figure C1 to Two Distribution Boxes Note: This drawing illustrates connections for 120mm 2. For connections of 95mm 2 and below refer to the material lists. Ensure that droppers (Ref. No.3) are adequately cleated to the pole, as the drawing is for illustration purposes only Page 40 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

42 Materials for Figure C1 Ref No. Component UK Power Networks Stores Code 1 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 to 95mm 2 single bolt IPC connector 08846P 8 120mm 2 to 95mm 2 double bolt IPC connector 08848J 8 3 4x95mm 2 (line to distribution box) 06207K L* 4 4x95mm 2 (line to distribution box) 06207K L* 5 Distribution box overhead 3-phase 08360K 2 Supplementary Components Needed to Complete the Structure L* Length as required. 4x95mm 2 Cable tie (NI) 03552P As required Plastic cleat (NI) * As required UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 41

43 Figure C2 to via Fuses GA Note: This drawing illustrates connections for 120mm 2. For connections of 95mm 2 and below refer to the material lists. Ensure that droppers are adequately cleated to the pole, as the drawing is for illustration purposes only Bi-metallic earthing connections to be made at the base of the pole, behind the cable guard Page 42 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

44 Materials for Figure C2 Ref No. Component UK Power Networks Stores Code, 4x120mm 2, 4x95mm 2, 4x35mm mm 2 to 35mm 2 single bolt IPC connector 08845E mm 2 to 95mm 2 single bolt IPC connector 08846P mm 2 to 95mm 2 double bolt IPC connector 08848J mm 2 compression none tension splice 08740X mm 2 compression none tension splice 08743C mm 2 compression none tension splice 08744M Pole Mounted 400A cut-out (PC400) 12050D mm 2 to 35mm 2 bare Cu compression splice 08766Y mm 2 to Cu 35mm 2 compression non-tension 08770Y mm 2 Cu 35mm 2 compression non-tension 08954L Earthing components* * Supplementary Components Needed to Complete the Structure Cable tie (NI) 03552P As required Plastic cleat (NI) * As required * Refer to Figure D2. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 43

45 Figure C3 Intermediate with Cable Termination and LV Fuses GA Note: This drawing illustrates connections for 120mm 2. For connections of 95mm 2 and below refer to the material lists. Ensure that droppers (Ref. No.3) are adequately cleated to the pole, as the drawing is for illustration purposes only Bi-metallic earthing connections to be made at the base of the pole, behind the cable guard 4 Page 44 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

46 Materials for Figure C3 Ref No. Component UK Power Networks Stores Code, 4x120mm 2, 4x95mm 2, 2x95mm mm 2 to 95mm 2 single bolt IPC connector 08846P mm 2 to 95mm 2 double bolt IPC connector 08848J heatshrink end cap (35 to 120mm 2 ) 08881A x95mm 2 (main to fuse) 06202L - - L* 4x95mm 2 (main to fuse) 06207K - L* - 4x120mm 2 (main to fuse) 06208U L* PVC Cable guard (64mm) 08172X mm 2 to 35mm 2 Cu compression non-tension splice 08770Y As supplied in underground cable pole termination kit Pole Mounted 400A cut-out (PC400) 12050D Earthing components** ** Supplementary Components Needed to Complete the Structure Cable tie (NI) 03552P As required Plastic cleat (NI) * As required L* Length as required. ** Refer to Figure D2. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 45

47 Figure C4 Terminal with Cable Termination and LV Fuses GA Note: This drawing illustrates connections for 120mm 2. For connections of 95mm 2 and below refer to the material lists. Ensure that droppers are adequately cleated to the pole, as the drawing is for illustration purposes only Bi-metallic earthing connections to be made at the base of the pole, behind the cable guard 2 Page 46 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

48 Materials for Figure C4 Ref No. Component UK Power Networks Stores Code, 4x120mm 2, 4x95mm 2, 2x95mm 2 1 Pole Mounted 400A cut-out (PC400) 12050D PVC Cable guard (64mm) 08171N mm 2 to 35mm 2 Cu compression non-tension splice 08770Y As supplied in underground cable pole termination kit mm 2 to 95mm 2 single bolt IPC connector 08846P mm 2 to 95mm 2 double bolt IPC connector 08848J heatshrink end cap (35 to 120mm 2 ) 08881A Earthing components* * Supplementary Components Needed to Complete the Structure Cable tie (NI) 03552P As required Plastic cleat (NI) * As required * Refer to Figure D2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 47

49 APPENDIX D GA DRAWINGS AND MATERIALS EARTHING Figure Figure D1 Figure D2 Drawing Title Earthing Bundle to PME Earth Earthing PME Earth Page 48 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

50 Figure D1 Earthing Bundle to PME Earth to be used from the IPC to the bi-metallic connection at the base of the pole. (See Figure D2) Materials for Figure D1 Ref No. Component UK Power Networks Stores Code, 4x120mm 2, 4x95mm 2, 4x35mm 2, 2x95mm 2 1 heatshrink end cap (35 to 120mm 2 ) 08881A mm 2 to 35mm 2 single bolt IPC connector 95mm 2 to 35mm 2 single bolt IPC connector 120mm 2 to 35mm 2 double bolt IPC connector 08845E Y J mm 2 1C Earth Wire 06209E Earthing components * * * Refer to Figure D2., 2x35mm 2 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 49

51 Figure D2 Earthing PME Earth 1 2 Aluminium to Copper bi-metallic splice ( mm above ground) 4 (Note: Splice is behind cable guard) Requirement for Additional Earth Electrodes Depends on Measured Resistance See EDS for guidance 500mm Minimum 3 Nominal Resistance 100 ohms Page 50 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

52 Materials for Figure D2 Ref No. Component UK Power Networks Stores Code 1 35mm 2 1C Earth Wire 06209E 6m 2 PVC Cable guard (20mm) 09000P 1 All 3 Extensible earth rod (1.2m) 02472U As required 4 35mm 2 to 35mm 2 bare Cu compression splice 08766Y 1 Supplementary Components Needed to Complete the Structure Earth rod coupling ** 02475Y As required Earth rod bulldog clamp ** 02474P As required C Crimp 70mm copper conductor ** 08614D As required C Crimp 35mm copper conductor ** 08612J As required Earth rod driving point ** 02479N As required L* Length as required. ** For use with earth electrode as required. UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 51

53 APPENDIX E DATA FOR CONDUCTOR,, 4x120MM 2 Data Summary:,, 4 X 120mm 2 (Recommended Span = 50m) In-line Structures Medium Poles 9m x m x m x m x 250 Angle and Terminal Structures Medium Poles Line Deviation (Degrees) Number/Category of Stays and Spread at Ground Level (m) (L = Light Stay Type 1 H = Heavy Stay Type 2) 9m x m x m x m x 250 Up to m L@ m m N/A 90m N/A N/A 90m N/A N/A 90m Terminal m Stout Poles Line Deviation (Degrees) Number/Category of Stays and Spread at Ground Level (m) (L = Light Stay Type 1 H = Heavy Stay Type 2) 9m x m x m x m x 305 Up to m m L@ L@ L@ m m m Terminal m Max Span Length 60m 60m 60m 60m Max Span Length 90m 90m Max Span Length 90m 90m 90m Page 52 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

54 Design Table Sag/Tension:,, 4x120mm Basic Span 50m Temp ( o C) Tension (kgf) Design Sag (m) for Span Length (m) Design Data for 4 x 120 weight 1.6kg/m Cross Sectional Area of s 480mm 2 overall diameter 42mm Coefficient of Linear Expansion 2.3 x 10-5 Modulus of Elasticity 6000kg/mm 2 Rated Breaking Strength of Bundle kgf Basic Span 50m Wind Pressure 380N/mm 2 Radial Ice Thickness 4.75mm Ice Density 1420kg/m 3 Changed from 913 to allow for ice within bundle) Maximum Working Tension (MWT) 1345kgf Temperature at MWT Limit -5.6 O C Maximum Everyday Tension (EDT) 610.7kgf (conductor mass/m x 1000 / 2.62) Temperature at EDT Limit 10 O C Max Tension at -5.6 OC 1345kgf Maximum Weight 2.541kgf/m (including ice) Maximum Pressure 1.996kgf /m (including 4.75mm radial ice) Freezing Point Tension 712.7kgf Factor of Safety 6.02 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 53

55 Pole Data (Ground Good/Average):,, 4x120mm 2 Length (m) Grade Dia. 1.5m from Butt (mm) Planting Depth (mm) Single pole pole strength SWL (kgf) 9 Medium Medium Medium Medium Medium Medium Stout Stout Stout Stout Stout Stout Maximum wind load span (m) Pole Data (Ground Good/Average):,, 4x120mm 2 Length (m) Grade Dia. 1.5m from Butt (mm) Planting Depth (mm) Single pole pole strength SWL (kgf) 9 Medium Medium Medium Medium Medium Medium Stout Stout Stout Stout Stout Stout Maximum wind load span (m) Page 54 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

56 APPENDIX F DATA FOR CONDUCTOR,, 4x95MM 2 Data Summary:,, 4 X 95mm 2 (Recommended Span = 50m) In-line Structures Medium Poles 9m x m x m x m x 250 Angle and Terminal Structures Medium Poles Line Deviation (Degrees) Number/Category of Stays and Spread at Ground Level (m) (L = Light Stay Type 1, H = Heavy Stay Type 2) 9m x m x m x m x 250 Up to m m m m m m N/A 90m N/A 90m Terminal m Stout Poles Line Deviation (Degrees) Number/Category of Stays and Spread at Ground Level (m) (L = Light Stay Type 1, H = Heavy Stay Type 2) 9m x m x m x m x 305 Up to m m m m m m Terminal m Max Span Length 60m 60m 60m 60m Max Span Length Max Span Length 90m 90m UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 55

57 Design Table Sag/Tension:,, 4x95mm 2 Basic Span 50m Temp ( o C) Tension (kgf) Design Sag (m) for Span Length (m) Design Data for 4 x 95 weight 1.3 kg/m Cross Sectional Area of s 380mm 2 Overall Diameter 39mm Coefficient of Linear Expansion 2.3 x 10-5 Modulus of Elasticity 5600kg/mm 2 Rated Breaking Strength of Bundle kgf Basic Span 50m Wind Pressure 380N/mm 2 Radial Ice Thickness 4.75mm Ice Density 1370kg/m 3 (Changed from 913 to allow for ice within bundle) Maximum Working Tension (MWT) 1156kgf Temperature at MWT Limit -5.6 o C Maximum Everyday Tension (EDT) 496.2kgf (conductor mass/m x 1000 / 2.62) Temperature at EDT Limit 10 o C Max Tension at -5.6 OC 1146kgf Maximum Weight 2.19kgf/m (including ice) Maximum Pressure 1.88kgf /m (including 4.75mm radial ice) Freezing Point Tension 580kgf Factor of Safety 5.4 Page 56 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015

58 Pole Data (Ground Good/Average):,, 4x95mm 2 Length (m) Grade Dia. 1.5m from Butt (mm) Planting Depth (mm) Stores Code 9 Medium K 10 Medium U 11 Medium E 12 Medium P 9 Stout H 10 Stout S 11 Stout C 12 Stout M UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015 Section 1 I Page 57

59 APPENDIX G DATA FOR CONDUCTOR,, 2x95MM 2 Data Summary:,, 2x95mm 2 (Recommended Span = 50m) In-line Structures Medium Poles 9m x m x m x m x 250 Angle and Terminal Structures Medium Poles Max Span Length 60m 60m 60m 60m Line Deviation (Degrees) Number/Category of Stays and Spread at Ground Level (m) (L = Light Stay Type 1, H = Heavy Stay Type 2) 9m x m x m x m x 250 Up to m m m m m m m m Terminal m Stout Poles Line Deviation (Degrees) Number/Category of Stays and Spread at Ground Level (m) (L = Light Stay Type 1, H = Heavy Stay Type 2) 9m x m x m x m x 275 Up to m m m m m m m m Terminal m Max Span Length Max Span Length Page 58 I Section 1 UK POWER NETWORKS OVERHEAD LINES CONSTRUCTION MANUAL I 2015