Expo 2030 Riyadh KAFD Building 1.10, Floor 17 KAFD City Riyadh 12512 Saudi Arabia MAIL TYPE Workflow Transmittal MAIL NUMBER BECHTEL-WTRAN-019001 REFERENCE NUMBER BECHTEL-WTRAN-019001 Final (WF-018631) ABD-0062-HSW-PLN-00010 Temporary Electrical Management Safety Plan From Mr Mahmoud Bayoumy - Bechtel Global To (5) Cc (3) Sent Sunday, 23 August 2026 2:01:15 PM AST (GMT +03:00) Status N/A Mr Mohamed Favas - Abyatona Development Company (+4 more...) Ms Noura AlSaweed - Expo Riyadh Company (+2 more...) DOCUMENT ATTACHMENTS (2) ( 2 selected) File Document No Revision Revision Date Title Status ABD-0062-HSW-CRS- 00014 03 17/08/2026 Temporary Electrical Management Safety Plan A - Approved ABD-0062-HSW-PLN- 00010 03 17/08/2026 Temporary Electrical Management Safety Plan A - Approved MESSAGE Workflow Review History The attached documents have completed the "ABD-0062-HSW-PLN-00010 Temporary Electrical Management Safety Plan" workflow with the following results : This transmittal was automatically generated. Doc No Step Participant Review Outcome Comments ABD-0062-HSW-PLN- 00010 PMC DCC Review M Bayoumy A - Work May Proceed 8/23/26, 3:26 PM Aconex https://ksa1.aconex.com/hub/index.html 1/2 ABD-0062-HSW-CRS- 00014 PMC DCC Review M Bayoumy A - Work May Proceed 8/23/26, 3:26 PM Aconex https://ksa1.aconex.com/hub/index.html 2/2 Temporary Electrical Management Safety Plan Design & Build of ERC Headquarter Complex Document N o .ABD - 0062 - HSW - PLN - 00010 Document Revision: 0 3 Document Revision Date: 1 7 /0 8 /2026 Signatures Revision History Revision Code Description of Changes Purpose of issue Submission Date 01 For Approval 04/05/2026 02 For Approval 13/06/2026 03 For Approval 1 7 /08/2026 Name Prepared By Eleumar Carmona Reviewed by Ahmad Obeidat Approved By Ahmad Obeidat Job Title HSE Manag er Project Manager Project Manager Document No.:ABD - 0062 - HSW - PLN - 00010 Document Name:Temporary Electrical Management Safety Plan EXPO 2030 RIYADH COMPANY Page 1 | 2 Revision No. 0 3 ABD - 0062 - HSW - PLN - 00010 Rev. 03 Page | 2 Temporary Electrical Safety Management Plan 1 PURPOSE ................................ ................................ ................................ ................................ .... 3 2 GENERAL REQUIREMENTS ................................ ................................ ................................ ............. 3 2.1 LOTO AUTHORITY ................................ ................................ ................................ ................................ ......... 3 2.2 ROLES AND RESPONSIBILITIES ................................ ................................ ................................ ...................... 3 2.3 DEDICATED LOTO ROOM ................................ ................................ ................................ .............................. 4 3 GENERAL PRECAUTIONS ................................ ................................ ................................ ................ 4 4 TEMPORARY ELECTRICAL SUPPLY ................................ ................................ ................................ ...... 6 4.1 TEMPORARY GENERATOR S AND SAFETY MEASURES ................................ ................................ ................... 6 5 CIRCUIT BREAKERS ................................ ................................ ................................ ....................... 7 6 CABLE PROTECTION ................................ ................................ ................................ ...................... 7 7 CORDS AND PORTABLE TOOLS ................................ ................................ ................................ ......... 8 8 IDENTIFICATION OF ELECTRI CAL EQUIPMENT ................................ ................................ ...................... 9 9. ELECTRICAL ISOLATION AND LOCK OUT / TAG OUT (LOTO) ................................ ................................ ..... 9 10. Guarding Electrical Equipment ................................ ................................ ................................ ......... 10 11 OVER - CURRENT PROTE CTION ................................ ................................ ................................ ......... 10 12 Disconnects ................................ ................................ ................................ ............................... 11 13 LOW - VOLTAGE LIGHTING SYSTEMS AND EMERGENCY LIGHTING ................................ ........................... 11 13.1 TEMPORARY TASK AND AREA LIGHTING ................................ ................................ ................................ ........... 11 13.2 RESTRICTIONS ON HALOGEN LIGHTING ................................ ................................ ................................ .............. 11 13.3 EMERGENCY LIGHTING ................................ ................................ ................................ ................................ .... 11 13.4 INSPECTION AND MAINTENANCE ................................ ................................ ................................ ...................... 11 13.5 RECORD KEEPING ................................ ................................ ................................ ................................ ............ 12 14 GROUNDING CONDUCTORS ................................ ................................ ................................ ........... 12 15 GROUND FAULT PROTECTION ................................ ................................ ................................ ......... 13 16 GROUND CONDUCTOR TESTING ................................ ................................ ................................ ...... 13 17 GROUND CONDUCTOR TEST VERIFICATION ................................ ................................ ........................ 14 18 ELECTRICAL POWER TOOLS ................................ ................................ ................................ ............... 14 Applicable Standards and References ................................ ................................ .............................. 15 19 COMPETENCIES OF ELECTRICIANS ................................ ................................ ................................ ..... 16 20 WORK NEAR OV ERHEAD AND LIVE UNDERGROUND SERVICES ................................ .............................. 16 21 TRAINING ................................ ................................ ................................ ................................ ... 17 22 DOCUMENTATION ................................ ................................ ................................ ...................... 17 23 REFERENCE ................................ ................................ ................................ ................................ 18 ABD - 0062 - HSW - PLN - 00010 Rev. 03 Page | 3 Temporary Electrical Safety Management Plan 1 PURPOSE The purpose of this section is to introduce minimum specifications for Electrical Safety. These specifications are intended to provide ABYATONA and sub - Contractors with guidance and information for ensuring proper safe electrical procedures and practices are in place. 2 GENERAL REQUIREMENTS No person may install or maintain electrical equipment unless that person has been properly trained or is closely supervised by a qualified person. Only qualified electricians authorized by the project manager can perform the followi ng functions/duties: • Operate any circuit switching device of 400 V or greater, except motor starters and valve operators controlled from approved pushbutton stations or equivalent control devices. Such operations shall only be carried out by qualified elec tricians authorized by the Project Manager and in accordance with the approved Lock Out / Tag Out (LOTO) procedure and Permit to Work (PTW) requirements. • Test or troubleshoot electrical equipment • Repair or alter electrical equipment • Remove or install fuses • Change bulbs in low - voltage systems • Climb electrical poles • Perform testing, troubleshooting, maintenance, repair, alteration, or installation activities only after the affected electrical circuits and equipment have been fully isolated from all energy sou rces, locked out, tagged out (LOTO), verified as de - energized using approved test instruments, and confirmed safe for work in accordance with the approved Lock Out / Tag Out (LOTO) Procedure and Permit to Work (PTW) system. • Access to electrical substations , switch rooms, motor control centers (MCCs), and other electrical installations shall be restricted to authorized and competent personnel. All planned work shall be carried out under isolated and verified de - energized conditions unless otherwise specifica lly authorized in writing by ERC/PMC. 2.1 LOTO AUTHORITY ABYATONA shall appoint a competent and authorized LOTO Authority responsible for the implementation, administration, monitoring, and continuous improvement of the Lock Out / Tag Out (LOTO) Program. The LOTO Authority shall ensure that all electrical isolation activities are carried out in accordance with the approved LOTO procedure, verify the correct application and removal of locks and tags, maintain LOTO records, conduct periodic inspections and audit s, and provide LOTO awareness and competency training to affected personnel and authorized employees. 2.2 ROLES AND RESPONSIBILITIES • SUPERVISOR Supervisors shall ensure that electrical work is properly planned, risk assessed, and carried out by competent perso nnel under approved Permit to Work (PTW) and Lock Out / Tag Out (LOTO) procedures, while monitoring compliance with this plan and taking immediate corrective action for unsafe conditions. • AUTHORIZED EMPLOYEES Authorized Employees are qualified personnel pe rmitted to perform electrical isolation and LOTO activities. They shall verify energy isolation, apply and remove personal locks and tags, test for absence of voltage, and perform work only after confirming a zero - energy state. • AFFECTED EMPLOYEES Affected Employees are personnel who operate or work near equipment subject to LOTO. They shall comply with LOTO instructions, shall not interfere with isolation devices, and shall not attempt to energize or operate locked or tagged equipment. ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 4 Temporary Electrical Safety Management Plan • EMPLOYEES All employ ees shall comply with this Temporary Electrical Management Safety Plan, follow electrical safety procedures, use required personal protective equipment (PPE), report unsafe conditions immediately, and shall not perform electrical work unless authorized and competent to do so. 2.3 DEDICATED LOTO ROOM ABYATONA shall establish and maintain a dedicated Lock Out / Tag Out (LOTO) Room/Station at the project site under the control of the LOTO Authority. The facility shall be used for the secure storage and management of LOTO locks, tags, keys, isolation registers, permits, electrical single - line diagrams, and related documentation, and shall also serve as the designated location for LOTO coordination, briefings, and training. 3 GENERAL PRECAUTIONS • Accidents involving el ectricity occur most frequently when the work is performed on or near live circuits, and when manual switching operations are performed. All employees shall make every effort not to work on or near any electrical circuits that are energized. • Always assume that exposed de - energized electrical lines and equipment are energized until the circuits have been properly isolated, grounded (if appropriate), tagged, locked out, and tested. • ABYATONA shall identify any potential work on or near live circuits during the 2 - week look - ahead. • Electrical circuits and equipment shall be de - energized before any installation, maintenance, inspection, repair, or modification activity. Where isolation cannot be immediately achieved, the work shall not proceed until the circuit has been safely isolated, locked out, tagged out (LOTO), tested for absence of voltage, and verified by a competent authorized electrician in accordance with the approved Permit to Work (PTW) procedure. • The Risk Assessment / Method Statement (RAMS) describes the safe work practices required for the safe installation of conduit, cable tray, buss duct, and pulling wire. These systems are possible conductors in areas of exposed de - energized and energized parts. All shielding, barricading and guarding of exposed c onductors precede each task. Proper PPE, dielectric tools, and equipment are used in these areas. • Do not use metal ladders or scaffolds in or around high voltage areas. All ladders shall have nonconductive side rails and footing. Use fiberglass ladders rat ed for electrical tasks. • Do not wear jewelry, or conductive clothing, or use tools and equipment that have been altered to be nonconductive by covering, wrapping, or other insulating means when working on or near exposed energized or de - energized electrica l parts or equipment. • If an electrical circuit breaker trips, do not reset that breaker until a qualified electrician has investigated the tripping of the breaker. • Never direct a stream of water on electrical conductors without approval of a qualified elec trician who can confirm that all circuits are de - energized. • Do not work within 10’ (3 m) of bare live circuits above 50 V that are not barricaded or covered. The 10’ (3 m) measurement shall be from the nearest part of the body or hand - held object. • Even whe n working distances meet or exceed 10’ (3 m), exercise good judgment to ensure that all appropriate precautions are considered. When issuing work permits, always identify and discuss any electrical power lines, tag and lock procedures, and effective commun ications. Consult a qualified electrician when appropriate. • Avoid contact with insulated aerial conductors. Never assume that insulation on conductors is intact or that it provides adequate personnel protection from a shock hazard. The aerial conductors sh all be de - energized, grounded and guarded to prevent exposure to personnel ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 5 Temporary Electrical Safety Management Plan and/or vehicular equipment i.e., trucks, cranes, aerial lifts etc., working in the area. • Always replace and tighten all bolts and covers on electrical housings, especially on e xplosion proof equipment. These covers and bolts shall be in place and tight to maintain the explosion proof character of the equipment. If this is not done, the equipment could become a source of ignition. Never operate electrical equipment in a hazardous area if the enclosure cover is not properly bolted (or screwed) in place. • Do not rush to the aid of the victim of electrical shock before considering the source of the problem. Immediately de - energize the circuit if possible or if there is no doubt as to whether the circuit is still energized, carefully approach the victim, and remove the victim from the circuit using insulated materials so as to not endanger the rescuers. Insulated materials include dry lumber, a leather belt, a rubber hose, and other non - conducting items. The effect of electrical shock on an individual depends upon the type of circuit, the voltage, resistance, amperage, and pathway through the body. Electric shock normally stops the heart and voluntary breathing reflex. • All portable elect rical tools and equipment shall operate from approved project temporary power supplies in accordance with the Saudi Electrical Code (SBC - 401), project electrical specifications, and the approved Temporary Electrical Distribution System. All equipment shall be protected by appropriate Residual Current Devices (RCDs) or Ground Fault Protection Devices and shall be inspected and tested prior to use. • • Specialist operations requiring the use of 230 V or 400 V electrical equipment shall be subject to task - specif ic risk assessment, inspection by a competent electrician, and approval in accordance with the project's Permit to Work (PTW) and Temporary Electrical Safety procedures. All such equipment shall be protected by suitable Residual Current Devices (RCDs) and verified safe prior to energization. • All electrical leads shall be kept as a short as is practicable and shall be routed in a safe manner, to avoid tripping hazards in particular. • All site temporary electrical apparatus shall be inspected on a regular basi s and tested at three monthly intervals in accordance with the requirements of the IEE Regulations (Current Edition). • All electrical portable tools and equipment shall be inspected regularly in accordance with these requirements. A schedule of inspections shall be identified, and a record of inspections maintained. • All electrical installations shall fully comply with current IEE Regulations (Current Edition). • ABYATONA operatives shall not work on or near to live electrical circuits so far as is reasonably p racticable. Where this type of work is necessary it shall be carried out by electrically competent and experienced persons and shall be controlled by an approved LOTO and permit to work system. • ABYATONA is responsible for ensuring the provision of adequate standards of lighting (Task Lighting) required for the safe undertaking of their operations (e.g. 20 - 50 Lux). • ABYATONA shall appoint a competent electrical coordinator/duty holder to oversee the design, installation, testing and maintenance of temporary electrical systems on - site. • In conjunction with competent electricians, the electrical coordinator/duty holder shall conduct weekly inspections of all distribution boards (main and sub). • All electrical equipment used on the worksite will be manufactured i n accordance with internationally recognised standards and installed in accordance with BS 7671 or equivalent international standard. • Cables, sockets, connectors and splitters and sockets will be of an industrial type. Domestic type cabling, connectors and sockets are prohibited in construction areas. Jointing of all electrical cables and wires shall be by means of proprietary terminations or connectors/splitters. • Jointing of all electrical cables and wires shall be by means of proprietary terminations or ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 6 Temporary Electrical Safety Management Plan c onnectors. 4 TEMPORARY ELECTRICAL SUPPLY • Electrical supply panels shall be sufficient in number and secured to prevent unauthorized access and inspected before use by a competent person. • All switchgear installed on - site shall be positioned as to be freely ac cessible at all times. Care shall be taken to ensure no equipment or materials are placed in such a manner as to obscure access to them. • All main switchgear shall be provided with a facility to be locked in the open (off) position. • Free - standing mains dist ribution units (MDU’s) shall be used to house site switchgear for lighting, power tools, etc. These units will have regularly inspected circuit breakers. Sufficient numbers of MDU's to be provided within site temporary electric circuits to minimize long ca ble runs between plant generators, MDU's and equipment. • Where it is not possible to house switchgear in this manner, it shall be installed and protected in a manner that does not expose it to any adverse or hazardous conditions and secured to prevent unaut horized access. • All distribution equipment and fixed electrical plant shall have an isolating switch attached to it or positioned adjacent to it. • There shall be one main switch on - site where all site power can be switched off in case of an emergency. This location shall be well marked and signed and included in worker inductions. • Mains power supplies for the worksite will be provided from generators or via worksite specific transformers connected to the permanent power supply. • ABYATONA shall ensure that rel evant third - party permits from the local electricity company, are secured prior to any work taking place regarding connection or relocation of existing LV/HV supply. • If power is to be generated on - site, then generators shall be earthed and covered, prefera bly packaged, to reduce noise. • All generators and fuel stores shall be located in a bund. ABYATONA shall install the foam fire extinguishers of suitable capacity/size. • All transformers and main electrical distribution boards shall be located in a secure ar ea to prevent any unauthorized entry. All transformers and main electrical distribution boards shall be earthed. • Main distribution cables, external cables or cables crossing vehicle access routes shall be armoured and where practically possible running and fixed at height off the ground • All distribution units shall be lockable, IP rated where water ingress is likely, elevated, and fire resistant. • Hazard warning signs demonstrating voltage and identified with a serial number and fixed checklist sticker. Unit s will be checked daily by a competent electrician. 4.1 TEMPORARY GENERATORS AND SAFETY MEASURES ABYATONA shall ensure that all temporary generators used on the project are installed, operated, inspected, and maintained by competent personnel in accordance wi th the Saudi Electrical Code (SBC - 401), manufacturer’s instructions, and ERC project requirements. Generators shall be positioned on stable ground within a designated barricaded area, effectively earthed, protected from unauthorized access and adverse weat her, and provided with adequate ventilation. Fuel storage and refueling activities shall be controlled to prevent fire and environmental hazards, with suitable fire extinguishers and spill kits available at all times. All generator output connections shall be protected by approved circuit breakers and Residual Current Devices (RCDs), and routine inspections and maintenance records shall be maintained throughout the project. ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 7 Temporary Electrical Safety Management Plan 5 CIRCUIT BREAKERS • All electrical circuits shall be provided with suitable protection devices, including circuit breakers and Residual Current Devices (RCDs), as applicable to the electrical design and installation. • All sockets used within construction areas at voltages above 110 V shall be protected by individual RCDs with a maximum sensi tivity of 30 mA and zero - time delay. • Each socket outlet shall have its own individual RCD protection. Shared RCD protection for multiple socket outlets shall not be used where individual RCD protection is required by this section. • RCDs shall be selected, i nstalled and maintained in accordance with the Saudi Electrical Code, applicable SASO requirements, NFPA 70 and ERCSM requirements. • RCDs shall be function - tested at the required inspection intervals and the test results shall be recorded in the Electrical Inspection and Testing Register. • Any RCD that fails a functional test or does not operate within its specified characteristics shall be immediately removed from service and replaced or repaired by a competent electrical person. • Circuit breakers and protect ive devices shall be clearly identified to indicate the circuit or equipment they protect. • Electrical distribution boards shall be arranged so that individual protective devices can be readily isolated and faults can be identified without unnecessarily dis connecting other circuits. • Electrical designs shall consider multiple circuits with individual protective devices to reduce nuisance/spurious tripping and facilitate identification and isolation of electrical faults. • No socket outlet shall be placed into s ervice until the required RCD protection has been installed, verified and tested by a competent electrician. • Where an RCD is installed as the main isolator, there shall be sub - circuit RCDs installed on all outgoing circuits from the MDU with finer control than the main RCD. Where possible, either four pole or two pole breakers are used with the neutral conductor running through the breaker. This will assist in avoiding spurious tripping on the main RCD. All outgoing circuits from a distribution board shall be clearly labelled. • All socket outlets and portable electrical equipment operating on the project temporary electrical system shall be protected by individual Residual Current Devices (RCDs) with a maximum rated residual operating current of 30 mA and app ropriate trip characteristics in accordance with the Saudi Electrical Code (SBC - 401) and project electrical safety requirements. 6 CABLE PROTECTION • All buried electrical cables shall be installed at a minimum depth of 0.5 m below finished ground level , or de eper where required by the applicable design, risk assessment, site conditions, or relevant standards. • The required burial depth shall be verified during installation by a competent person and recorded in the electrical installation inspection records. • Bur ied cable routes shall be clearly identified and marked at ground level using suitable permanent cable route markers or warning signs at appropriate locations, including changes in direction and crossing points. • The location and route of all buried electri cal cables shall be accurately surveyed and recorded on the project electrical/as - built drawings and cable route plans • Cable route records shall include, where applicable, cable identification, route, installation depth, crossing points and reference loca tions to facilitate future identification and prevent accidental damage. • Where buried cables are exposed, relocated, modified or repaired, the cable route and depth shall be re - verified and the electrical plans and records updated accordingly. • Before any e xcavation, ground penetration or breaking - ground activity near buried electrical cables, the approved underground service detection and permit requirements shall be followed. ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 8 Temporary Electrical Safety Management Plan • Any deviation from the approved cable route or minimum burial depth shall be asse ssed and approved by the competent electrical person before installation proceeds. No buried cable shall be covered until the required depth and route have been inspected, verified and documented. • All electrical supply boards, cables, cords, plugs and so ckets shall be safe by design for construction use, located or protected so as to avoid becoming a trip hazard or being physically damaged by vehicles, water, etc. (for example, by elevation or armour). • Temporary electrical cables shall be elevated to avoi d the risk of becoming both a trip hazard and a potential source of electrocution. • Cables located outdoors shall be elevated across pedestrian or vehicle routes to avoid contact by persons or vehicles/equipment. Any cables elevated above pedestrian or vehi cle routes shall be clearly marked to avoid being struck. Where feasible, the cable can be buried but it shall be in a protective sleeve. Trailing cables outdoors shall be suitably protected from the elements and shall be raised off the ground. • Cables loca ted indoors shall be elevated off the ground to prevent a trip hazard and to be away from potential wet areas. Preferably cables shall be fixed to the ceiling or travel along an elevated structure. • Cables shall not hang from the steel scaffold/false work. All extraneous metalwork and exposed conductive parts shall be bonded and earthed. • ABYATONA responsible for temporary distribution shall place safety signage on all power distribution systems and equipment to highlight electrical hazards. 7 CORDS AND PORTABL E TOOLS • If equipment is energized, do not plug or unplug equipment or extension cords with wet hands. • All extension cords, portable electric tools, and equipment shall be of the three - wire type. The rated load cannot be exceeded. • Remove any trigger lock de vices from portable tools. • Use flexible cords only in continuous lengths without splices, unless the insulation is equal to the cable being spliced and wire connections soldered. A No. 12 or larger flexible cord may be repaired or spliced only if the repai r maintains the outer sheath’s properties. • Do not use worn or frayed electric cables. • Temporary wiring shall be guarded, buried, or isolated by elevation to prevent accidental contact by personnel or equipment. Vertical clearance above walkways cannot be l ess than 10’ (3 m) for circuits rated 600 V or less. All temporary wiring shall be supported on insulators. • Do not fasten or hang cords and equipment in any way that could cause damage to the outer jacket or insulation of the cord. Do not fasten extension cords fastened with staples, hang them from nails, or suspend them by wire. • Ensure that flexible cords and electrical cords used on a temporary basis are protected from accidental damage: • Ensure that the cords avoid sharp corners and projections. • Ensure th at the cords are protected if they pass through doorways or other pinch points. • Ensure that flexible cords and electrical cords are connected to devices and fittings so that any pulling force on the cord cannot be directly transmitted to joints or terminal screws on the plug. • Ensure that flexible cords and cables are approved and suitable for the method and ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 9 Temporary Electrical Safety Management Plan location where they are used. Flexible cords and cables are used only for the following equipment or purpose: o Wiring or equipment and appliances o Data pr ocessing cables approved as a part of the data processing system o Pendants o Wiring for fixtures o Appliances that have been designed to permit removal for maintenance and repair if the appliance is equipped with an attachment plug energized from an approved ou tlet o Elevator cables o Wiring of cranes and hoists o Connecting portable lamps or appliances to an approved outlet with an attachment plug o Connecting stationary equipment that is frequently charged with an attachment plug energized from an approved outlet o Prev enting noise or vibration transmission • Do not use flexible cords in any of the following ways: o As a substitute for fixed wiring of a structure o To run through holes in walls, ceilings, floors, doorways, windows, or similar openings unless protected o To attac h to building surfaces o To conceal behind building walls, ceilings, or floors o To raise or lower equipment o For carrying or lowering (use a tag line) 8 IDENTIFICATION OF ELECTRICAL EQUIPMENT Clearly visible identification plates shall be provided for each perma nent electrical device located in the work area. The competent person ensures that unmarked electrical equipment is not used. Use identical nomenclature on all isolating devices coinciding with the equipment served. Attach identification plates and letteri ng in the best practical manner so as not to change the electrical classification. Ensure that markings are durable and appropriate to the environment. Appropriate markings include: o Manufacturer’s name. o Trademark. o Organization responsible for the product. o Voltage, current and wattage, or other ratings, as necessary. o Equipment having auxiliary circuit shall have “Has Auxiliary Circuit” on the identification plate. 9. ELECTRICAL ISOLATION AND LOCK OUT / TAG OUT (LOTO) ABYATONA adopts a strict policy prohibiting work on energized electrical circuits and equipment during construction activities. Prior to the commencement of any electrical installation, maintenance, repair, testing, or modification work, all electrical circuits shall be: • Positively identified. • Isol ated from all energy sources. • Locked using approved Lock Out devices. • Tagged with approved Lock Out / Tag Out (LOTO) identification tags. • Tested using an approved voltage tester to verify the absence of voltage. • Confirmed safe for work by an authorized and competent electrician. No person shall remove another person's lock or tag except in accordance with the approved LOTO procedure. Electrical work shall only proceed after verification that the circuit or equipment is in a zero - energy state and a valid Per mit to Work (PTW) has been issued where applicable. ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 10 Temporary Electrical Safety Management Plan Any deviation from this requirement shall require prior written authorization from ERC/PMC and shall only be considered under exceptional circumstances in accordance with project - specific procedures. 10. Gua rding Electrical Equipment • Guard live parts on electrical equipment operating at fifty (50) V or greater against accidental contact by any of the following methods: o Using approved cabinets or enclosures. o Locating the equipment in a limited access room or e nclosure, accessible only to qualified electricians. Entrances to limited access rooms containing exposed live parts conspicuously marked forbidding unqualified persons to enter. o Installing permanent, substantial partitions so that only qualified electrici ans have access within reach of the live parts. Any openings shall prevent accidental contact with live parts by employees or objects employees carry. o Locating equipment on a balcony, gallery, or platform that excludes unqualified persons. o Locating equipme nt 8’ (2.4m) or more above the working surface. • Rosettes and cleat - type lamp holders at least 8’ (2.4m) feet above the ground may have exposed parts. • In locations where electric equipment would be exposed to physical damage, enclosures or guards shall pre vent damage. • Do not use oil - filled transformers underground unless they are located in a fire - resistant enclosure suitably vented to the outside and surrounded by a dike to retain the contents of the transformers in the event of rupture. • Fixtures and recep tacles located in wet or damp locations shall be approved for such use. • Fixtures and receptacles shall be constructed or installed so that water cannot enter wire ways, lamp holders, or other electrical parts. • Cabinets, fittings, boxes, and other enclosure s shall be weatherproof. • Switches, circuit breakers, and switchboards shall be in weatherproof enclosures. 11 OVER - CURRENT PROTECTION a. Electrical circuits rated at 600 V or less shall have over - current protection. Protect conductors and equipment according to their ability to safely conduct electrical current. b. Provide easy access to over - current devices for each employee or qualified electrician. Protect over - current devices by locating them away from easily ignitable material. c. Over - current devices cannot inte rrupt the continuity of grounded conductors unless: 1. All conductors are opened at the same time, OR 2. Over - current devices protect from overload when running motors d. Ensure that circuit breakers and fuses: 1. Clearly indicate when they are open (off) and closed ( on) 2. That operate vertically are installed so the handle is in the “up” position when the breaker is closed (on) • Circuit breakers used as switches for lighting circuits shall be approved and rated for switching duty in accordance with the manufacturer's spe cifications and the applicable requirements of the Saudi Electrical Code (SBC - 401). ii. That arc or have suddenly moving parts are shielded or located so that employees are not burned or injured by the operation of the circuit breaker. ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 11 Temporary Electrical Safety Management Plan 12 Disconnects Instal l disconnecting mechanisms so the fuses or thermal cutouts can be disconnected without disrupting service to equipment and circuits unrelated to those protected by an over - current device. Ensure that the following fuses and thermos cutouts have disconnecti ng mechanisms: a. Cartridge fuses accessible to nonqualified persons b. Fuses on circuits over 150 V to ground c. Thermal cutouts on circuits over 150 V to ground Locate the disconnecting means so they are readily accessible; they shall have a label that clearly i ndicates what the switch controls. Ensure that disconnect boxes are securely fastened and fitted with covers. Use waterproof disconnect boxes shall be used in damp and wet locations. Use your left hand when operating any disconnect switch. This will offset your body in case of malfunction in the switch 13 LOW - VOLTAGE LIGHTING SYSTEMS AND EMERGENCY LIGHTING ABYATONA shall ensure that all temporary lighting installations are designed, installed, inspected, and maintained by competent personnel in accordance with the Saudi Electrical Code (SBC - 401), the approved Temporary Electrical Management Safety Plan, and ERC project requirements. 13.1 TEMPORARY TASK AND AREA LIGHTING • Adequate temporary lighting shall be provided in all work areas, access routes, staircases, emerg ency escape routes, welfare facilities, storage areas, and work fronts to enable activities to be carried out safely. • Lighting levels shall be suitable for the nature of the work being performed and shall not create glare, shadows, or visual hazards. • All t emporary lighting equipment shall be protected against mechanical damage and environmental conditions and shall be connected through approved Residual Current Devices (RCDs). 13.2 RESTRICTIONS ON HALOGEN LIGHTING • Portable halogen lamps mounted on tripods shall not be used for task lighting due to the associated fire risk. • Halogen lighting units shall only be permitted where fitted with a glass front protective plate and metal protective guard and securely fixed to a permanent or temporary structure for area ligh ting purposes. • Halogen lamps shall be positioned away from combustible materials and protected against accidental contact, impact, or overturning. 13.3 EMERGENCY LIGHTING • ABYATONA shall ensure that emergency lighting is installed and maintained on all emergency escape routes, exit corridors, staircases, assembly route access points, and other designated emergency egress locations. • Emergency lighting should, where practicable, be integrated with the temporary lighting system using strategically located battery - ba cked LED or fluorescent emergency luminaires or bulkhead fittings capable of providing a minimum of three (3) hours of continuous illumination following loss of normal power supply. • Emergency lighting installations shall ensure safe evacuation of personnel during power failures or emergency situations. 13.4 INSPECTION AND MAINTENANCE To ensure consistent implementation and compliance with the Expo Riyadh Construction Safety Manual (ERCSM), the following inspection and testing frequencies shall apply to all tempo rary electrical systems, installations, distribution boards, cables, equipment and associated accessories: ABD - 0062 - HSW - PLN - 00010 Rev.03 Page | 12 Temporary Electrical Safety Management Plan • Pre - use visual inspection: Users shall conduct a visual inspection of electrical equipment, cables, plugs, sockets and connections before each use . D efective or damaged equipment shall be immediately isolated and removed from service. • Routine documented inspection: Temporary electrical installations and distribution systems shall be inspected by a competent electrician at defined intervals as part of t he project electrical inspection progra m . The inspection shall be documented using the approved Electrical Inspection Checklist. • Three - monthly testing: All temporary electrical systems shall be tested at three - monthly intervals in accordance with the IEE W iring Regulations and ERCSM Section 13.13. Test results shall be recorded and maintained in the Electrical Safety Register. • Additional inspection/testing: Inspection and testing shall also be undertaken following any modification, repair, alteration, reloc ation, electrical fault, damage, or other event that may affect the safety or integrity of the electrical system. • Initial inspection: All temporary electrical systems sha