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Create a MEP (Me Hannibal, Electrical, and Plumbing) Life Energy Checklist

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MEP Life Energy Checklist

This checklist is designed to ensure that all Mechanical, Electrical, and Plumbing (MEP) systems are properly de-energized and locked out before any maintenance, repair, or inspection work begins. This procedure is in accordance with safety regulations and aims to prevent accidental energization and potential harm to workers [1], [2].

Instructions

  1. Complete this checklist before starting any work on MEP systems.
  2. Verify each item and mark as complete or incomplete.
  3. If any item is marked as incomplete, take corrective action before proceeding with the work.
  4. Ensure all workers involved are aware of the lock-out/tag-out procedures and their responsibilities [2].

Section 1: Pre-Shutdown Planning

  • [ ] Identify all energy sources (electrical, mechanical, hydraulic, pneumatic, etc.) [1].
    • Notes:
    • Corrective Actions:
  • [ ] Review the specific lock-out/tag-out procedure for the equipment [2].
    • Notes:
    • Corrective Actions:
  • [ ] Gather necessary lock-out/tag-out devices (locks, tags, etc.) [1].
    • Notes:
    • Corrective Actions:
  • [ ] Ensure all workers are trained and qualified to perform the lock-out/tag-out procedure [2].
    • Notes:
    • Corrective Actions:
  • [ ] Notify all affected personnel about the planned shutdown [2].
    • Notes:
    • Corrective Actions:

Section 2: Lock-out/Tag-out Procedure

  • [ ] Shut down the equipment using normal operating procedures [1].
    • Notes:
    • Corrective Actions:
  • [ ] Isolate all energy sources by disconnecting switches, closing valves, etc. [1].
    • Notes:
    • Corrective Actions:
  • [ ] Apply lock-out/tag-out devices to each energy-isolating device [1].
    • Notes:
    • Corrective Actions:
  • [ ] Verify that the equipment is de-energized by testing it. Use appropriate testing equipment to ensure zero energy state [1].
    • Notes:
    • Corrective Actions:
  • [ ] Ensure that the testing instruments and equipment are visually inspected for defects and damages before use [3].
    • Notes:
    • Corrective Actions:
  • [ ] Dissipate any stored energy (e.g., release pressure from pneumatic or hydraulic systems) [1].
    • Notes:
    • Corrective Actions:

Section 3: Verification and Communication

  • [ ] Verify that all energy sources are effectively isolated [4].
    • Notes:
    • Corrective Actions:
  • [ ] Each worker applies their personal lock to the energy-isolating device [4].
    • Notes:
    • Corrective Actions:
  • [ ] Post a sign to warn others not to re-energize the system [5].
    • Notes:
    • Corrective Actions:
  • [ ] Communicate the status of the lock-out/tag-out to all team members [2].
    • Notes:
    • Corrective Actions:

Section 4: Post-Maintenance/Repair

  • [ ] Inspect the work area to ensure all tools and materials have been removed [6].
    • Notes:
    • Corrective Actions:
  • [ ] Ensure all workers are clear of the equipment [6].
    • Notes:
    • Corrective Actions:
  • [ ] Remove lock-out/tag-out devices (only by the person who installed them) [6].
    • Notes:
    • Corrective Actions:
  • [ ] Notify affected personnel prior to re-energizing the equipment [2].
    • Notes:
    • Corrective Actions:
  • [ ] Re-energize the equipment and verify normal operation [2].
    • Notes:
    • Corrective Actions:

Section 5: Specific System Checks

Electrical Systems:

  • [ ] Verify that all electrical connections are properly secured [7].
    • Notes:
    • Corrective Actions:
  • [ ] Check for any exposed or damaged wiring [7].
    • Notes:
    • Corrective Actions:
  • [ ] Ensure that all electrical panels are properly closed and secured [7].
    • Notes:
    • Corrective Actions:

Mechanical Systems:

  • [ ] Verify that all mechanical guards are in place and functioning correctly [1].
    • Notes:
    • Corrective Actions:
  • [ ] Check for any leaks in hydraulic or pneumatic lines [1].
    • Notes:
    • Corrective Actions:
  • [ ] Ensure that all moving parts are properly lubricated [1].
    • Notes:
    • Corrective Actions:

Plumbing Systems:

  • [ ] Check for any leaks in water or gas lines [6].
    • Notes:
    • Corrective Actions:
  • [ ] Verify that all pipe supports are in good condition [1].
    • Notes:
    • Corrective Actions:
  • [ ] Ensure that all drain lines are clear and functioning properly [6].
    • Notes:
    • Corrective Actions:

Signatures

Performed by: ____________________________ Date: ____________

Verified by: ____________________________ Date: ____________

7 source record(s)

Sources used for this answer

[1] Occupational Safety General Regulations (N.S. Reg. 44/99)

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Source excerpt

installation, or any part of it, a de-energized machine, equipment, tool or electrical installation, or any part of it, is energized - (a) only in accordance with an applicable written procedure established by the employer; and - (b) only after all persons are clear of the hazardous area and have been instructed to remain clear. Subsection 51(4) amended: O.I.C. 2013-65, N.S. Reg. 53/2013. [Note: Section 51 effective November 1, 2000.] ## Lock-out procedure 52 - (1) Where work is performed on a machine, equipment, tool or electrical installation, and the work is hazardous to a person in the workplace if the machine, equipment, tool or electrical installation is or becomes energized, an employer shall ensure that - (a) the work is done in accordance with a written lock-out procedure established by the employer; - (b) no person works on the machine, equipment, tool or electrical installation until the machine, equipment, tool or electrical installation - (i) is put in and maintained at a zero energy state, Subclause 52(1)(b)(i) amended: O.I.C. 2000-130, N.S. Reg. 52/2000. - (ii) is locked out, and - (iii) has a lock-out tag at each lock-out location; and - (c) a competent person verifies that the requirements of clauses (a) and (b) have been complied with and tests to determine that the machine, equipment, tool or electrical installation is in a zero energy state. - (1A) No employee shall perform work on a machine, equipment, tool or electrical installation in the circumstances described in subsection (1) unless the requirements of clause 52(1)(b) are met. Subsection 52(1A) added: O.I.C. 2000-130, N.S. Reg. 52/2000. - (2) The written lock-out procedure referred to in subsection (1) shall include - (a) provision for complying with the requirements of subsection (1); - (b) the method of notifying a person in the work area of safe conditions for work \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_…

[2] Occupational Safety General Regulations (N.S. Reg. 44/99)

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Source excerpt

## 51 (1 ) In this Part, - (a) 'equipment' includes - (i) pipes for transporting a material, and - (ii) hydraulic or pneumatic lines; - (b) 'lock-out device' means the device that secures the isolation of the energy source of a locked out machine, equipment, tool or electrical installation; - (c) 'lock-out location' means the location of a lock-out device; - (d) 'lock-out tag' means a tag that - (i) is installed at a lock-out location, - (ii) has words directing a person not to start or operate the machine, equipment, tool or electrical installation, - (iii) identifies the person who has performed a lock-out, and - (iv) does not readily conduct electricity; and - (e) 'zero energy state' means a condition in which a machine, equipment, tool or electrical installation is rendered incapable of spontaneous or unexpected action or otherwise releasing kinetic or potential energy. - (2) This Part applies to a machine, equipment, tool or electrical installation that is erected, installed, assembled, started, operated, handled, stored, stopped, inspected, serviced, tested, cleaned, adjusted, maintained, repaired or dismantled . - (3) An employer shall ensure that, in addition to any normal start and stop control mechanism, a machine, equipment, tool or electrical installation has a means of isolating all sources of energy to the machine, equipment, tool or electrical installation that is - (a) accessible when needed by an employee; and - (b) readily identifiable. - (4) An employer shall ensure that where a person may be exposed to a hazard by the manual or automatic energizing of a machine, equipment, tool or electrical \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

[3] Safety Standards for General Safety and Health Standards (Chaper 296-24 WAC)

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\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (i) Employees' hands must not be wet when plugging and unplugging flexible cords and cord- and plug-connected equipment, if energized equipment is involved. - (ii) You must only handle energized plug and receptacle connections with insulating protective equipment if the condition of the connection could provide a conducting path to the employee's hand (if, for example, a cord connector is wet from being immersed in water). - (iii) You must properly secure locking-type connectors after connection. ## (2) Electric power and lighting circuits . - (a) Routine opening and closing of circuits . You must use load rated switches, circuit breakers, or other devices specifically designed as disconnecting means for the opening, reversing, or closing of circuits under load conditions. You must not use cable connectors not of the load-break type, fuses, terminal lugs, and cable splice connections for such purposes, except in an emergency. - (b) Reclosing circuits after protective device operation . After a circuit is deenergized by a circuit protective device, you must not manually reenergize the circuit until it has been determined that the equipment and circuit can be safely energized. The repetitive manual reclosing of circuit breakers or reenergizing circuits through replaced fuses is prohibited. Note: When it can be determined from the design of the circuit and the overcurrent devices involved that the automatic operation of a device was caused by an overload rather than a fault condition, no examination of the circuit or connected equipment is needed before the circuit is reenergized. - (c) Overcurrent protection modification . You must not modify overcurrent protection modification overcurrent protection of circuits and conductors, even on a temporary …

[4] Occupational Health and Safety Code

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Source excerpt

- (b) all personal locks secured by workers under section 214.1, 215 or 215.1 are removed, and - (c) it is verified that no worker is in danger by the removal of the energy-isolating device or the return to operation of the machinery, equipment or powered mobile equipment. AR 191/2021 s215.3;242/2022 ## Piping or Pipelines ## Isolation re piping or pipelines 215.4 If piping or a pipeline containing a substance under pressure is to be serviced, repaired, tested, adjusted or inspected, or if any other work is to be performed on it that requires the control of hazardous energy, an employer must ensure that no worker performs such work on the piping or pipeline until flow in the piping or pipeline has been stopped or regulated to a safe level and the location at which the work is to be carried out is isolated and secured in accordance with section 215.5. AR 191/2021 s215.4;242/2022 ## Isolation requirements for piping or a pipeline 215.5 (1) To isolate piping or a pipeline containing a substance under pressure, an employer must ensure the use of - (a) a system of blanking or blinding, or - (b) a double block and bleed isolation system providing - (i) 2 blocking seals on either side of the isolation point, and - (ii) an operable bleed-off between the 2 seals. 215.5 (2) An employer must ensure that piping or a pipeline that is blanked or blinded is clearly marked to indicate that a blank or blind is installed. 215.5 (3) An employer must ensure that, if valves or similar blocking seals with a bleed-off valve between them are used to isolate piping or a pipeline, the bleed-off valve is secured in the 'OPEN' position and the valves or similar blocking seals in the flow lines are functional and secured in the 'CLOSED' position. 215.5 (4) An employer must ensure that the device used to secure the valves or seals referred to in subsection (3) is - (a) a positive mechanical means of keeping the valves or seals in the required position, and - (b) strong enough and desi…

[5] Safety Standards for General Safety and Health Standards (Chaper 296-24 WAC)

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Open source document

Source excerpt

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (e) Circuit impedance and other characteristics . You must select and coordinate the overcurrent protective devices, the total impedance, the component short-circuit current ratings, and other characteristics of the circuit to be protected to permit the circuit protective devices used to clear a fault to do so without the occurrence of extensive damage to the electrical components of the circuit. You must assume this fault to be either between two or more of the circuit conductors, or between any circuit conductor and the grounding conductor or enclosing metal raceway. - (f) Deteriorating agents . Unless identified for use in the operating environment, you must not locate any conductors or equipment in damp or wet locations; where exposed to gases, fumes, vapors, liquids, or other agents that have a deteriorating effect on the conductors or equipment; or where exposed to excessive temperatures. - (g) Mechanical execution of work . You must install electric equipment in a neat and workmanlike manner. - (i) You must effectively close unused openings in boxes, raceways, auxiliary gutters, cabinets, equipment cases, or housings to afford protection substantially equivalent to the wall of the equipment. - (ii) You must rack conductors to provide ready and safe access in underground and subsurface enclosures that persons enter for installation and maintenance. - (iii) Internal parts of electrical equipment, including busbars, wiring terminals, insulators, and other surfaces, may not be damaged or contaminated by foreign materials such as paint, plaster, cleaners, abrasives, or corrosive residues. - (iv) There must be no damaged parts that may adversely affect safe operation or mechanical strength of the equipment, such as parts that are broken, bent, cut, or…

[6] Occupational Health and Safety Code

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Source excerpt

## Securing Isolation ## Assigning personal locks 214 (1) An employer must assign to each of its workers involved in the isolation of hazardous energy a personal lock with a unique mark or identification tag on the lock to identify the lock as belonging to the worker to whom it is assigned. - 214 (2) During the time hazardous energy is isolated in accordance with section 212, an employer must make readily available to workers a written list of the names of every worker to whom a personal lock is assigned and a description of the unique mark or identification tag associated with each personal lock. - 214 (3) A worker may be assigned more than one personal lock under this section to enable compliance with the requirements of this Part. - 214 (4) Control of a personal lock assigned to a worker under this section may be transferred to a supervisor or a worker in the circumstances referred to in section 214.1(4)(b), 215(5)(b) or 215.1(4)(b). AR 191/2021 s214;242/2022 ## Securing by individual workers - 214.1 (1) Once all energy-isolating devices have been activated to control hazardous energy as required by section 212, an employer must ensure that a worker secures each energy-isolating device with that worker's personal lock. - 214.1 (2) Once each energy-isolating device is secured as required by subsection (1), the worker who secures the energy-isolating device with that worker's personal lock must verify that the hazardous energy has been effectively isolated. 214.1 (3) If more than one worker is working on machinery, equipment or powered mobile equipment that requires hazardous energy to be controlled, an employer must ensure that - (a) every such worker secures that worker's personal lock to each energy-isolating device being used, and - (b) the first worker securing that worker's personal lock verifies that the hazardous energy has been effectively isolated. - 214.1 (4) If a worker who has secured a personal lock to an energy-isolating device is reassigned …

[7] Safety Standards for General Safety and Health Standards (Chaper 296-24 WAC)

Page 491

Open source document

Source excerpt

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (B) Ropes and handlines used near exposed energized parts must be nonconductive. - (ii) You must use protective shields, protective barriers, or insulating materials to protect each employee from shock, burns, or other electrically related injuries while that employee is working near exposed energized parts which might be accidentally contacted or where dangerous electric heating or arcing might occur. When normally enclosed live parts are exposed for maintenance or repair, they must be guarded to protect unqualified persons from contact with the live parts. - (2) Alerting techniques . You must use the following alerting techniques to warn and protect employees from hazards which could cause injury due to electric shock, burns, or failure of electric equipment parts: - (a) Safety signs and tags . You must use safety signs, safety symbols, or accident prevention tags where necessary to warn employees about electrical hazards which may endanger them. - (b) Barricades . You must use barricades in conjunction with safety signs where it is necessary to prevent or limit employee access to work areas exposing employees to uninsulated energized conductors or circuit parts. Conductive barricades may not be used where they might cause an electrical contact hazard. - (c) Attendants . If signs and barricades do not provide sufficient warning and protection from electrical hazards, you must station an attendant to warn and protect employees. - (3) Design requirements . Insulating blankets, ,matting, covers, line hose, gloves, and sleeves made of rubber must meet the following requirements: ## (a) Manufacture and marking . - (i) Blankets, gloves, and sleeves must be produced by a seamless process. - (ii) Each item must be clearly marked as follows: - (A) Class …

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