EDS SAFETY SIGN AND IDENTIFICATION LABELLING OF EQUIPMENT

Transcription

1 THIS IS AN UNCONTROLLED DOCUMENT, THE READER MUST CONFIRM ITS VALIDITY BEFORE USE Document Number: EDS ENGINEERING DESIGN STANDARD EDS SAFETY SIGN AND IDENTIFICATION LABELLING OF EQUIPMENT Network(s): EPN, LPN, SPN Summary: This engineering design standard outlines the use of required signs and labels for all assets on the Network. It concentrates on how the Statutory Safety Sign shall be attached to overhead line and substation equipment. Owner: Jeremy Wright Approved By: Barry Hatton Approved Date: 27/11/2015 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 issue. Applicable To UK Power Networks All UK Power Networks Asset Management Capital Programme Connections External G81 Website Contractors ICPs/IDNOs Meter Operators HSS&TT Network Operations UK Power Networks Services Other

2 Revision Record Version 4.0 Review Date 27/11/2018 Date 22/10/2015 Author Tony Potter Why has the document been updated Periodic review What has changed Section 5.2 (Emergency Numbers) numbers updated, Section (Sign Details) sign 20016x updated, Section 5.5 (Street/Free-Standing Network Pillars and Turrets) sign 21771G updated, Substation labels to suit all UKPN areas. New UKPN emergency phone number. Area-specific labels removed. Document transferred onto a new engineering template and rules applied Version 3.0 Review Date 23/09/2015 Date 24/09/2013 Author Luke Hughes Alignment of area signage policy to single UK Power Networks policy Version 2.0 Review Date Date 20/06/2012 Author Jeremy Wright Re-classified from an EI to an EDS, review date extended 3 months Version 1.0 Review Date Date 10/11/2006 Author Jon Kenrick New document incorporating company-wide new signs and procedures to comply with ESQC Regulations (2002). Supersedes historic policies EI 9/19/12 (SPN) and E 1/7/2 (LPN). UK Power Networks 2015 All rights reserved 2 of 22

3 Contents 1 Introduction Scope Glossary and Abbreviations Approved Notices of Signs and s Hierarchy of Signage Emergency Numbers Grid and Primary Substations Required Signage Sign Details Sign Fixing for Grid and Primary Substations Distribution Substations Required Signage Preferred Sign Details Alternative Sign Details Sign Fixing for Distribution Substations Street/Free-Standing Network Pillars and Turrets Link-Boxes and Cable Pits Towers and Tower Mounted Apparatus Poles and Pole Mounted Equipment Sign Fixing Pole Mounted Equipment and Poles Overhead Lines Low Overhead Lines Catenary HV Cables Railway, Waterway, Forestry and Managed Plantation Crossings Cable Routes Warning Signs for Members of the Public Fishing Areas Public Parks used for Kite Flying Other Areas with Hazards to the Public Independent Distribution Network Operators and Independent Connections Providers of Signage for IDNOs and ICPs Other Signage on Operational Assets Permanent Signage References Dependent Document UK Power Networks 2015 All rights reserved 3 of 22

4 1 Introduction As a Distribution Network Operator (DNO) UK Power Networks must ensure signage is in place for all operational assets in order to meet compliance with the following legislation: The Electricity Safety, Quality and Continuity (ESQC) Regulations 2002; The Health and Safety (Safety Signs and Signals) Regulations These regulations are in place to ensure that all members of the public and UK Power Networks employees, or businesses working on its behalf, are fully aware of the dangers within or near to its operational assets. 2 Scope This engineering design standard outlines required permanent signage for operational assets within UK Power Networks. Temporary signage, including signs required by the Construction (Design and Management) Regulations 2007, are excluded from this document. 3 Glossary and Abbreviations Term ABC ACD Asset Register ESQCR SF 6 UK Power Networks (UKPN) Definition Aerial Bundled Conductor Anti Climbing Device UK Power Networks Asset Register currently Ellipse (soon to be a SAP driven database post BTP R3) Electricity, Safety, Quality and Continuity Regulations Sulphur Hexafluoride UK Power Networks (Operations) Ltd consists of three electricity distribution networks: Eastern Power Networks plc (EPN). London Power Network plc (LPN). South Eastern Power Networks plc (SPN). 4 Approved Notices Details of approved warning labels, notices and signs are contained in UK Power Networks Engineering Design Standard EDS UK Power Networks 2015 All rights reserved 4 of 22

5 5 of Signs and s 5.1 Hierarchy of Signage In order to comply with the Electricity Safety, Quality and Continuity Regulations the following signs must be placed on every entrance to UK Power Networks operational sites: Safety Sign: This sign must be above all other signs; Emergency Telephone Number with UK Power Networks Logo; Unique Site Reference (Can be site name and/or number); Below are two examples of current existing signs in use on the network. These signs will be phased out over time and will be replaced with the revised version as shown in Section Preferred Sign Details. In order to comply with the Health and Safety (Safety Signs and Signals) Regulations 1996 staff must be warned of specific site risks before entering operational areas. Wherever practicable, operational signs must be placed below Danger of Death signs. Specific site risks, such as SF 6 gas, are risks that an employee would not normally expect to encounter. For risks which occur on every UK Power Networks site specific risk signage is not required. UK Power Networks 2015 All rights reserved 5 of 22

6 5.2 Emergency Numbers UK Power Networks currently has a range of emergency numbers in operation. Displayed on Substation Signs EPN Emergency Number SPN Emergency Number LPN Emergency Number Security Number Displayed on UK Power Networks Website EPN Emergency Number EPN Alternative Emergency Number SPN Emergency Number SPN Alternative Emergency Number LPN Emergency Number LPN Alternative Emergency Number Security Number In order to reduce confusion to customers it has been agreed the number of emergency numbers will be reduced by phasing out of individual area numbers. This is expected to take a number of years, during this transition all numbers above will remain in use. Where possible a single emergency point of contact for UK Power Networks will be given: UK Power Networks Emergencies Grid and Primary Substations For the purpose of this standard: A Grid Substation is a site containing UK Power Networks owned main apparatus and plant, and where the source voltage is 132kV or above; A Primary Substation is defined as a site where the transformer source voltage is 66kV or 33kV and the busbar voltage is 22kV, 11kV, 6.6kV, 3.3kV or 2.2kV Required Signage The following signs must be installed on all grid and primary substations: On all entrance gates or doors to a site: Entrance signage as defined in Section 5.1, consisting of: Safety Sign; Emergency Telephone Number with UK Power Networks Logo; Unique Site Reference (Can be site name and/or number). UK Power Networks 2015 All rights reserved 6 of 22

7 On all fence lines, walls or boundaries around or within a site: Where the boundary has live exposed equipment immediately behind: At least two safety signs on each face, outwardly facing, or more if a maximum spacing of 15m between signs cannot be achieved. Where the site has further fences or boundaries within, stopping access to live exposed equipment: Safety signs are not required. Specific risk signs to be placed on, or on approach to, operational sites: This includes, but is not limited to: SF 6 gas warning signs; Operational restriction signage. All operational assets where two or more of the same equipment type are in the same location: Identification labelling to allow easy identification of equipment. s to be made from either engraved or printed rigid plastic. All non-standard signage must be removed when new signs are installed. UK Power Networks 2015 All rights reserved 7 of 22

8 5.3.2 Sign Details Stock Code Drawing No, Example and Dimensions (mm) Safety sign for grid and primary substations To be used in rural areas and sites where members of the public are not passing constantly close-by. Uses: Access Gates / Doors; Fences and Walls. Positioning: Top of sign to be level with upper horizontal fence support using cable ties only P (w) x 540(h) Safety sign for grid and primary substations in sensitive locations To be used as above safety signs in public areas and sensitive sites J (w) x 315(h) Company ownership label, grid and primary substations On all entrances to sites and buildings, as defined in section 5.1 and section K (w) x 175(h) Location label for grid and primary substations On all entrances to sites and buildings, as defined in section 5.1 and section Y ABBERTON GRID L B 500(w) x 170(h) Safety Sign & Identification for Secondary Sites UKPN Asset Management have approved the use of a portable label printer to add site identity information when the sign is installed. See EDS for details. New UKPN Emergency phone number, x 200 x Safety sign On every access door to buildings where live equipment is within U 200(w) x 220(h) UK Power Networks 2015 All rights reserved 8 of 22

9 SF 6 Gas No Smoking Warning On all access doors and gates where SF 6 gas filled equipment is within B (rigid) 21090L (selfadhesive) (w) x 100(h) for SHE hazards Put through padlocks on all substation main doors/gates where lock is readily accessible or screwed to door if padlock is in accessible Other signage may be used to warn of specific site hazards 21752Y 100(w) x 200(h) Substation Trespass Sign To be used at substations where frequent intrusions have taken place. To be positioned at the site boundary at the most likely approach from the public F 210(w) x 150(h) Sign Fixing for Grid and Primary Substations To prevent use as a climbing aid, all site boundary signs are to be attached using cable ties only. Over-plated signage and sign fixing brackets are not permitted and must be removed if found. Sign attached to palisade fencing using cable ties UK Power Networks 2015 All rights reserved 9 of 22

10 5.4 Distribution Substations For the purpose of this standard: A Distribution Substation is a site containing UK Power Networks owned main apparatus and plant, and where the source voltage is either at 11kV, 6.6kV, 3.3kV or 2.2kV and the secondary voltage is either 230/400/460V Required Signage The following signs must be installed at all secondary substations: On all entrance gates or doors to a site: Entrance signage as defined in section 5.1, consisting of: Safety Sign; Emergency Telephone Number with UK Power Networks Logo; Unique Site Reference (Can be site name and/or number). On all fence lines, walls or boundaries around or within a site: Where the boundary has live exposed equipment immediately behind, or there is believed to be increased risk of intrusion to the site: At least one safety signs on each face, outwardly facing. In all other cases safety signs are not required. Specific risk signs to be placed on, or on approach to, operational assets: This includes, but is not limited to: SF 6 gas warning signs Open excavations Operational restriction signage All operational assets where two or more of the same equipment type are in the same location: Identification labelling to allow easy identification of equipment. s to be made from either engraved or printed rigid plastic. All non-standard signage must be removed when new signs are installed. UK Power Networks 2015 All rights reserved 10 of 22

11 5.4.2 Preferred Sign Details The following signage is preferred for use on secondary substations. This type of signage has the following advantages: Common signage for all UK Power Networks sites to allow easier identification by staff and public; Improved purchasing costs from UK Power networks suppliers (through one design of sign being procured), leading to better value for customers; Ability of staff to produce permanent location labels where site signage is found to be missing or incorrect, removing the need for second visits to attach signs once produced. Stock Code Drawing No./ Example and Dimensions (mm) Safety Sign & Identification for Grid & Primary Sites Asset Management have approved the use of a portable label printer to add site identity information when the sign is installed. See EDS for details New UKPN Emergency phone number, x 500 x 700 SF 6 Gas No Smoking Warning On all access doors and gates to areas containing SF 6 gas filled equipment B (rigid) 21090L (self-adhesive) (w) x 100(h) for SHE hazards Put through padlocks on all substation main doors/gates where lock is readily accessible or screwed to door if padlock is in accessible. Other signage may be used to warn of specific site hazards Y (w) x 200(h) Substation Trespass Sign To be used at substations where frequent intrusions have taken place. To be positioned at the site boundary at the most likely approach from the public F (w) x 150(h) UK Power Networks 2015 All rights reserved 11 of 22

12 5.4.3 Alternative Sign Details The following signage is also permissible. These signs must always be arranged as described in Section 5.1. Stock Code Drawing No./ Example and Dimensions (mm) Combined safety sign and ownership label for distribution substations On main access gates and/or doors. Note: The emergency telephone number on these signs direct to the same emergency call centre. Any emergency number can be used in any area C 200(w) x 325(h) Location label for distribution substations Immediately below company label, on main access gate/door to site only 20005E HOVEFIELDS DRIVE SOUTH TQ (w) x 70(h) SF 6 Gas No Smoking Warning On all access doors and gates where SF 6 gas filled equipment is within B (rigid) 21090L (self-adhesive) (w) x 100(h) Sign Fixing for Distribution Substations Where possible signs should be attached using screws or nails. Where not possible a suitable adhesive may be used. UK Power Networks 2015 All rights reserved 12 of 22

13 5.5 Street/Free-Standing Network Pillars and Turrets Upright structures containing LV equipment must warn the public of dangerous electrical equipment within. A self-adhesive label has been developed for this purpose. Stock Code Drawing No./ Example and Dimensions (mm) Self-adhesive film safety label Substation labels to suit all UKPN areas New UKPN Emergency phone number, Located on one side of the pillar/turret, and is easily viewable by the public G 100(w) x 150(h) 5.6 Link-Boxes and Cable Pits Stock Code EPN/LPN/ SPN Drawing No./ Example and Dimensions (mm) Link-box and Cable Pit Inspection label Link Boxes: To be cable-tied to bell-cover handle Cable Pits: To be attached to the side of the cable pit wall in such a way to be easily viewable whilst facing the onward direction of traffic T (w) x 60(h) UK Power Networks 2015 All rights reserved 13 of 22

14 5.7 Towers and Tower Mounted Apparatus Danger of Death safety signs must be fixed to all towers. These must be fixed to the tower structure, above the anti-climbing devices such that they are not obscured: Positioning of Statutory Safety Signs on Towers (Energy Networks Association Technical Specification 43-90) Stock Code Drawing No./ Example and Dimensions (mm) Safety sign for towers Low and normal risk locations: Place sign on two sides of the tower, above the level of all ACDs (located according to ENA TS refer to picture above). High risk locations: Place on all four sides of the tower, above the anti-climbing devices J (w) x 315(h) Identification plate Tower number only e.g. PCA183, below the Statutory Safety Sign, on one side of the tower facing the source of supply 20003K PCA (w) x 180(h) UK Power Networks 2015 All rights reserved 14 of 22

15 5.8 Poles and Pole Mounted Equipment Safety signs must be fixed to all overhead line/equipment supports. Stock Code EPN/LPN/ SPN Drawing No./ Example and Dimensions (mm) Safety sign wraparound High risk locations: To be positioned above the anti-climbing device where possible, or at highest accessible point from ground Q (w) x 200(l) High risk locations: Alternative to Safety sign wraparound, to be placed on both sides of pole Safety sign for poles Low and normal risk locations: Place on one side of the pole facing the most likely direction of approach P To be positioned above the anticlimbing device where possible, or at highest accessible point from ground. 200(w) x 220(h) Safety sign for use in sensitive locations Alternative sign to (above), to be used on low voltage poles where: There is an issue with the design being too obtrusive or Where the amount of pole mounted plant makes other signs difficult to fix 21767G (w) x 110(h) Location label Pole number e.g. TM , directly below the Safety Sign (where only conductor support exists). Where other equipment exists such as transformers, switches, fuses etc., an additional label placed directly below the pole number, stating unique name and/or number of site 20005E TM (w) x 70(h) Sign Fixing Pole Mounted Equipment and Poles In the case of multiple pole structures, all supports must be individually labelled. All non-standard signage must be removed when new signs are installed. UK Power Networks 2015 All rights reserved 15 of 22

16 5.9 Overhead Lines Low Overhead Lines Where an overhead line is found to be low the following sign must be placed to warn the public and land owners: Stock Code Drawing No./Example and Dimensions (mm) Danger Low Power Line To be placed on each pole next to low conductor, pointing in direction of hazard A Front Back 200(w) x 60(h) Catenary HV Cables Where catenary HV cable is erected on poles, the label below must be placed on the pole directly beneath the main support to the cable. Stock Code Drawing No./Example and Dimensions (mm) Warning label for high voltage catenary cable Placed immediately below the catenary cable but above the LV ABC where it exists 20011Y (w) x 70(h) UK Power Networks 2015 All rights reserved 16 of 22

17 5.9.3 Railway, Waterway, Forestry and Managed Plantation Crossings At these crossings the label below may be placed on each side of the crossing. In some cases local agreements or practice may require signs to be placed in other positions. Stock Code Drawing No./Example and Dimensions (mm) Warning sign for crossings under overhead lines for railways, forests and waterways Placed on each side of the crossing, DNO ownership label to be attached in space below text F 220(w) x 310(h) Company (Ownership) To be attached to Safety warning sign for crossings, A (w) x 70(h) 5.10 Cable Routes Where identification of cable trenches, parapets (bridge crossings) is required by an authority, labels shown below must be placed and mounted as specified by that authority. Stock Code Drawing No./Example and Dimensions (mm) Warning label for underground cable routes (marker posts) Fixed to a marker post 20002A (w) x 70(h) Warning sign for cable routes (rail bridge parapets) Placed as close to the most convenient access point to the cable tray/supports 20001Q (w) x 70(h) UK Power Networks 2015 All rights reserved 17 of 22

18 5.11 Warning Signs for Members of the Public Fishing Areas At designated fishing sites where an overhead line over-sails likely casting points, a warning/prohibition signs should be erected in agreement with the site manager. Stock Code Drawing No./Example and Dimensions (mm) Warning/ prohibition sign for fishing areas This type of sign should be used to denote no fishing areas where lines run parallel to the water within the 30m exclusion zone. These signs can also be used as a reminder sign directly below the overhead crossing. Where overhead lines run parallel to the water for long distances repeater signs should be erected at maximum of 20m intervals in line of sight 20017H (w) x 230(h) Warning/ prohibition sign no fishing beyond this point Exclusion Zone signs should be used at the extremities of the angling exclusion zone. This should be erected in a prominent position, at right angles to the water, to face the angler as they approach the overhead power line 20024M (w) x 230(h) Warning/ advice sign keep rods and poles low To be used at access points to provide a general warning of the presence of overhead electricity lines on approaches and affecting the fishery C 360(w) x 230(h) Further guidance may be obtained from the Energy Networks Association (ENA) document Angler Safety Managing Risks Associated with Angling in Close Proximity to Overhead Power Lines. UK Power Networks 2015 All rights reserved 18 of 22

19 Public Parks used for Kite Flying The following sign design is available for public areas where kite flying in the vicinity of overhead lines would present a serious risk: Stock Code Drawing No./Example and Dimensions (mm) Warning/ prohibition sign for kite flying Placed at entrances to Public parks (e.g. car parks) or suitable third party structure following permission from relevant authority 20018S (w) x 250(h) Other Areas with Hazards to the Public Further locations where labelling may be required may include: Hang-gliding launch points; Sailing/yachting lakes; Car/lorry parks and lay-bys. For these areas the following sign may be used: Stock Code Drawing No./Example and Dimensions (mm) Warning sign for crossings under overhead lines for railways, forests and waterways Placed on each side of the crossing, confirm with relevant guidance or land owner F 220(w) x 310(h) Company (Ownership) To be attached to Safety warning sign for crossings, A (w) x 70(h) UK Power Networks 2015 All rights reserved 19 of 22

20 6 Independent Distribution Network Operators and Independent Connections Providers Independent Distribution Network Operators (IDNOs) are accredited organisations who develop, operate and maintain independent networks within a statutory Distribution Network Operators (DNO) area. Independent Connections Providers (ICPs) are organisations who develop networks for later adoption by DNO or IDNO. These companies do not operate or maintain the network. 6.1 of Signage for IDNOs and ICPs All assets which are to be adopted by UK Power Networks must comply in full with this standard. This includes all assets developed by ICPs. All assets which are owned by IDNOs must comply with ESQC Regulations. Where UK Power Networks equipment is situated within an IDNO site the following sign must be displayed: Stock Code Drawing No./Example and Dimensions (mm) Combined Safety Sign and company label for IDNO substations on the UKPN network To be placed next to IDNO Ownership sign Q 200(w) x 325(h) In addition to the sign above the IDNO must display the following signs: Safety Sign; Emergency Telephone Number with IDNO owner details; Unique Site Reference (Can be site name and/or number). All the above may be contained in one sign. At all times it remains the IDNOs responsibility to ensure compliance with ESQC regulations is met. UK Power Networks 2015 All rights reserved 20 of 22

21 7 Other Signage on Operational Assets 7.1 Permanent Signage The following are examples of permanent signage that may be found on operational sites. This is not an exhaustive list and is designed to give an appreciation only of signs that may be present on site. Stock Code Drawing No./Example and Dimensions (mm) Type A Confined Space To be placed before entrance to confined space 21068N 300(w) x 100(h) Type B Confined Space To be placed before entrance to confined space 21065J 300(w) x 100(h) Type C Confined Space To be placed before entrance to confined space 21066T 300(w) x 100(h) Caution for Battery Installations To be placed on the battery cabinet 21798S 150(w) x 100(h) Harmonised Wiring To be placed on outside of installations where wiring colours confirm to two versions of BS R 100(w) x 60(h) UK Power Networks 2015 All rights reserved 21 of 22

22 8 References This document makes reference to the following standards, legislation and guides: EDS ENA Angler Safety ENA TS Signs and s for Operational Sites (internal document) Managing Risks Associated with Angling in Close Proximity to Overhead Electric Power Lines Anti-Climbing Devices and Safety Signs for HV Lines up to and including 400kV The Health and Safety (Safety Signs and Signals) Regulations 1996 The Electricity Safety, Quality and Continuity Regulations Dependent Document This document is referenced in the following documents, any of which may be affected by updates. EDS EDS EMS EOP HSS Security Specification for UKPN Operational Sites Refurbishment and Replacement Standard for HV Secondary Substation Equipment Substation Ground and Vegetation Management Vegetation Management in the Vicinity of Overhead Lines and Structures Safety Signs and Signals Overhead Line Construction Manual UK Power Networks 2015 All rights reserved 22 of 22