Information
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Customer's Name:
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Site's Name:
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Customer's Person in Charge:
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SE Person in Charge:
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IMPORTANT! The first 6 steps of this checklist must be completed, signed and visibly posted at the point of work BEFORE starting work.
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PREPARATION STAGE
- Drawings (single line, layout…) available/up to date?
- Switching schedule (sequence of operations) defined?
- Briefing with customer’s person in charge?
- Appropriate PPE available and checked?
- Correctly rated voltage tester available?
- Adequate earthing (grounding) equipment available?
- Adequate lock out devices and padlocks available?
- Emergency exit & fire extinguishers available?
- Emergency numbers posted - first aid, fire brigades, etc?
- Access to working area restricted with barriers & signs?
- Is SF6 gas present?
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PREPARATION STAGE Checked and Signed by SE Person in Charge:
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PREPARATION STAGE Remove the load Approved by Customer Person in Charge:
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STEP 1. Remove the load
- Shut down the load in the normal way
- Local/remote control disconnected
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STEP 2. Separation (Dead)
- All phases/live conductors disconnected
- Fuses removed
- Feedback from other source: Ring circuits, generators, UPS, batteries, dual fed systems, mesh network, etc
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STEP 3. Securing Isolation (locking in open position)
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STEP 4. Verification of absence of voltage (VAV) * Note * All circuits are considered energized until verified.
- Shock and arc flash PPE required to open the cabinet doors or remove bolted covers
- Voltage tester rated at ..… kV, with conformity mark
- Voltage tester tested before use (VAV)?
- Verification of absence of voltage on all conductors in each cabinet opened?
- Voltage tester tested after use (VAV)?
- Customer’s person in charge present?
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STEP 4 Checked & Signed by SE Person in Charge:
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STEP 5. Earthing (Grounding) and short-circuiting {Not mandatory below 1000v}
- Earth cables connected to earth before short-circuiting
- Earth cables connected to conductors
- Capacitors discharged / short circuited
- If Feedback from other sources possible, earth cables connected before & after work area
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STEP 5 Checked & Signed by Customer Person in Charge:
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STEP 6. Protect adjacent energized circuits
- Prevent access to adjacent energized circuits (That cannot be de-energized) with insulated sheeting
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After even the shortest interruption of the work process (i.e. visit to restroom, lunch, etc), carry out a visual check to ensure all controls are in place – locks, tags, barriers and Earthing (Grounding) and short-circuiting for greater than 1000V.
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All 6 STEPS Complete & Signed by:
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INFO: Electrical Testing: Lock out all paths up and down stream of the equipment being tested to prevent back feed.
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* SE Work Team (SE employees & Contractors) * “Sign In” {I have completed steps 0-6 , placed my lock on the lock out device and will now work de-energized}. All Signees:
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* SE Work Team (SE employees & Contractors) * “Sign Out” {I have finished working de-energized , I have removed my lock from the lock device and I aware that the system is about to be re-energized}. All Signees:
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STEP 7. Temporary release of LOTO
- Temporary release of LOTO is sometimes required to calibrate a sensor, verify a voltage reading, etc.
- Is the person who must come in close contact with the hazards fully protected
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STEP 8. Release of LOTO - Re-energizing
- Working area cleared of tools and equipment?
- Covers and doors are replaced?
- Are all persons accounted for?
- All persons without correctly rated Arc Flash PPE outside the arc flash boundary?
- Safety documentation returned?
- A full inspection of all works must be completed by a competent person before re-energizing. (consider all downstream circuits)
- Screening/marking off of working area removed
- Short circuit removed before earthing
- All isolation measures removed (lock, etc)
- Usual safety devices and safety signs re-placed
- Signaling “Ready for switch on”
- … by all work areas
- …by all switching locations
- … by customer
- … by supervisor
- Handing over of modified drawings (if modifications have been done) to operation staff
- Permission to restore energy
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STEP 8 Checked & Signed by SE Person in Charge:
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STEP 8 Checked & Signed by Customer Person in Charge
Section II
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