Electrical first and second fix RAMS: what contractors should include.

Electrical first- and second-fix RAMS should identify the approved installation design, work area, system status, every relevant source of electrical energy, safe-isolation arrangements, containment and cable routes, access method, tools, testing boundary, competent people and interfaces with other trades. They should explain the sequence from work-area release through installation, inspection, testing, controlled energisation and handover, with clear stop-work conditions.

HSE warns that people undertaking refurbishment work can wrongly assume electrical systems are dead. Specialist electrical work should be done only by people who are trained and competent for it, and systems should not be made live before the work is finished and correctly installed.

The method should align with the Construction Phase Plan, approved drawings and specifications, temporary-power arrangements, permit or isolation procedure, fire-stopping strategy, access plan, inspection and test plan, commissioning plan and Principal Contractor rules.

Define the installation and its boundaries

State whether the work covers containment, supports, cable installation, accessories, distribution equipment, lighting, small power or another defined part of the electrical installation. Distinguish first-fix work—such as setting out, supports, containment and cable routes—from second-fix work such as fitting accessories, termination, identification, inspection and planned testing.

Show the physical and electrical boundaries. Identify existing installations, temporary supplies, adjacent live equipment, incomers, alternative or back-fed supplies, circuits that may be energised by others, and who controls isolation and energisation. Clarify where another contractor's testing, commissioning, fire stopping, builder's work or access provision begins.

Keep the RAMS within its assessed limits. A dead-working first- and second-fix method must not be extended to live working, high-voltage systems, complex switching, explosive atmospheres, specialist high-energy equipment or uncontrolled energisation. Battery, UPS, generator, photovoltaic or other alternative supplies require explicit identification and suitable competent planning.

What information should be obtained before work starts?

Confirm, where relevant:

• the approved drawings, schematics, circuit schedules, specification, design changes and manufacturer instructions;
• the exact first- and second-fix scope, system boundaries, work areas and interfaces with other contractors;
• the source of supply, distribution arrangement, circuit identification, isolation points and possible alternative or back-fed supplies;
• the Principal Contractor's permit, lock-off, proving-dead, temporary-power and energisation procedures;
• existing-services information, cable routes, scan results, current asbestos information and restrictions on drilling, chasing or opening construction;
• containment, supports, fixings, cable types, pulling limits, separation requirements, penetrations and fire-stopping details;
• the access equipment, overhead work, lifting or handling needs, lighting, housekeeping and occupied-area controls;
• tools and test equipment, including suitability, condition, voltage, inspection and calibration requirements;
• competence, authorisation, supervision and responsibility for isolation, installation, inspection, testing and energisation;
• inspection hold points, concealment release, testing and commissioning sequence, records, labels and handover requirements; and
• the programme, simultaneous work, temporary works, fire precautions and emergency arrangements.

Do not invent circuit data, protective-device details, fixing capacities, cable-pulling limits, test values or isolation points. Obtain them from the approved design, verified installation information, equipment instructions and the people authorised to control the system.

Write the method in the order the work will happen

A project-specific sequence may cover:

1. reviewing the approved design, scope, service information, asbestos information and system boundaries;
2. confirming competence, authorisation, work-area release, access and coordination with affected trades;
3. identifying every relevant supply and completing the project's approved safe-isolation process;
4. setting out routes, equipment and supports and checking for hidden services before drilling or cutting;
5. installing supports and containment with suitable fixings, access and control of dust, noise and falling objects;
6. positioning drums and pulling or placing cables within the planned route and handling limits;
7. protecting, identifying and terminating cables and fitting equipment and accessories;
8. inspecting work and completing required hold points before it is concealed or enclosed;
9. conducting planned inspection and testing by competent, authorised people under the separate testing controls;
10. closing defects, fitting labels and covers, removing temporary links or controls and confirming readiness;
11. authorising and controlling energisation under the project procedure; and
12. providing test results, marked-up information, certificates and handover records required by the project.

Critical controls to address in electrical RAMS

Competence, authorisation and supervision

Allocate work only to people with the competence, training, experience and knowledge needed for their task. Define who may identify and isolate supplies, retain keys, install, inspect, test, authorise energisation and supervise trainees or others whose competence is still developing. General site induction or possession of a card does not by itself demonstrate competence for a particular electrical operation.

Safe isolation and preventing re-energisation

Identify all sources of electrical energy and use the project's approved safe-isolation procedure. HSE guidance describes secure isolation as disconnecting all sources, releasing stored energy where relevant, locking each isolation device in the off position, keeping control of the key, displaying warnings and proving the circuit dead with suitable equipment.

The Electricity at Work Regulations require adequate precautions to prevent equipment made dead from becoming electrically charged while work is carried out. The RAMS should state the isolation boundary, authorised person, lock and key control, proving-dead arrangement, communication and controlled reinstatement. If the correct circuit or source cannot be identified and proved dead, work stops. Live working is outside this guide and the linked template's scope.

Existing services, drilling and asbestos

Before drilling, cutting or chasing, check current drawings and service information and have a competent person use suitable detection equipment. Inspect both sides of walls or floors where relevant and stop if results conflict with the information or the route is uncertain. HSE advises workers not to assume a surface is safe merely because cables are not visible.

Use the current asbestos register or refurbishment survey for the exact area and task. If suspect or unknown material may be disturbed, stop and obtain the necessary assessment and instruction. Electrical RAMS do not replace an asbestos survey or authorise disturbance.

Tools, temporary supplies and the work environment

Select equipment suitable for the task and environment, inspect it before use and remove damaged equipment from service. On construction sites, cordless tools or suitable reduced-voltage equipment may reduce risk; HSE identifies 110 V centre-tapped-to-earth systems as a common option for portable tools. RCD protection may provide an additional control where appropriate, but it does not replace suitable equipment, maintenance or safe working practice.

Protect leads from water, sharp edges, vehicles and trip damage. Provide adequate lighting, working space and access. Control dust, noise and vibration from drilling or chasing using suitable extraction, work methods and exposure controls, and coordinate hot-work or fire risks where they arise.

Cable drums, pulling and manual handling

Confirm cable lengths, drum weights, spindle and stand capacity, drum orientation, route, pulling equipment, bend requirements and communication. Stabilise drums on suitable ground and keep hands, feet and loose clothing away from rotating parts and pinch points. Use mechanical assistance where reasonably practicable and control access along the pull route.

Plan the number and position of people, commands, intermediate rollers, changes of level and stop signal. Do not exceed cable or equipment limits or use unverified improvised supports. Reassess if the route, drum, equipment or team differs from the plan.

Access, overhead work and other trades

Choose access equipment for the task, duration, reach and environment. Keep platforms stable and prevent overreaching. Control the area below overhead drilling, containment installation and cable work, and prevent simultaneous activity from exposing people to falling tools, materials or unexpected energisation.

Coordinate with drylining, ceilings, mechanical services, fire stopping, joinery and finishing trades so routes, supports, penetrations and access remain available. Do not conceal work before the required inspection or assume another trade will complete fire stopping, labelling or protection unless responsibility and release are recorded.

Testing, energisation and handover

Plan inspection and testing as a defined activity with competent, authorised people, suitable equipment and control of the test area. Identify when testing introduces voltage or stored energy and who may enter or alter the installation. The installation should not be made live until the relevant work is finished, correctly installed, inspected and released under the project procedure.

Control keys and permissions, notify affected people, close enclosures, confirm labels and remove temporary links before energisation. Record defects and test results and update schedules or marked-up drawings. If the installation is incomplete or results are outside the required criteria, keep it in a safe state and resolve the issue before handover.

Change and emergency arrangements

Give the team authority to stop if the supply, circuit identity, design, route, isolation point, work area, access, material, test result or adjacent activity differs from the RAMS. Changes should be assessed by the appropriate competent person and communicated before work resumes.

State how to respond to electric shock, arcing, fire, cable strike, unexpected energisation, damaged temporary supplies or suspected asbestos. Isolate where it is safe and authorised to do so, prevent access, summon emergency assistance and do not approach or touch a casualty until the electrical danger has been controlled.

How should the RAMS be briefed and reviewed?

Brief the people installing, supervising, isolating, testing and coordinating the work. They should understand the drawings, boundaries, current system status, roles, sequence, isolation controls, drilling restrictions, test arrangements, exclusion areas and stop-work conditions. Confirm understanding rather than relying on a signature alone.

Review the RAMS if the design, supply, circuit schedule, isolation, route, work area, material, access, programme, tester or energisation sequence changes. Pause the affected work while the change is assessed and the team is re-briefed.

The electrical contractor and Principal Contractor retain their applicable duties. Acceptance of RAMS, a permit or a template does not transfer responsibility for planning, competence, safe isolation or the quality of the installation.

Can an electrical first- and second-fix RAMS template be used?

A relevant template can provide a useful structure, but it cannot know the actual design, system status, isolation points, hidden services, asbestos information, cable routes, access, testing boundary or project rules.

The IMERI H&S Partners Electrical First & Second Fix – Dead Working RAMS template is currently available as a digital product. A competent person must confirm that its scope matches the work, assess the actual installation, adapt the sequence and controls, coordinate it with the project's isolation and energisation arrangements, and brief everyone involved.

Buying or downloading a template does not make it approved, suitable for the project or ready to issue. It does not cover live working and does not replace the approved design, safe-isolation procedure, asbestos information, permits, test plan, commissioning plan or Principal Contractor review.

When is project-specific RAMS support useful?

Support may be useful where the installation interfaces with an existing live system, alternative supplies are present, access or cable pulling is complex, several trades share the route, the building remains occupied or the testing and energisation sequence requires careful coordination.

For projects in Watford, Hertfordshire, London and the South East, send the approved drawings and schedules, installation scope, existing-system and isolation information, access and testing or commissioning arrangements, programme and Principal Contractor requirements. IMERI H&S Partners can then confirm an appropriate scope for project-specific RAMS support.