| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. ISOLATION AND DISCONNECTION | |||
| A1 | Source isolator / breaker identified and opened; visible break confirmed where possible Acceptance: Correct isolator identified from SLD; racked-out or open with visible air gap | CEA Reg 41 — Isolation | OK NC NA HOLD |
| A2 | Secondary / backup sources identified and isolated (UPS, battery, backfeed, captive gen) Acceptance: All sources listed; UPS output isolated; backfeed from bus-couplers verified off | CEA Reg 41 — Multiple sources | OK NC NA HOLD |
| A3 | Stored energy discharged: capacitors, inductive loads bleed-off; stored mechanical energy released Acceptance: Capacitors shorted for ≥5 min for HT; springs released; no residual hazard | CEA Reg 41 — Stored energy | OK NC NA HOLD |
| B. LOCK-OUT / TAG-OUT (LOTO) | |||
| B1 | Lock applied at isolator by each worker; multi-lock hasp used if multiple workers Acceptance: One lock per worker; key held personally; multi-hasp for team work | Cl. 7 — LOTO | OK NC NA HOLD |
| B2 | DANGER — DO NOT OPERATE tag with name, date, time, contact attached to isolator Acceptance: Legible tag; laminated; weather-proof; signed by person applying | Cl. 7 — Tag-out | OK NC NA HOLD |
| B3 | Try-out test done: operate start button / switch at controls — equipment does not start Acceptance: Start attempt confirms dead; all control voltages off; logged in permit | Cl. 7 — Verification | OK NC NA HOLD |
| C. DEAD TEST AND EARTHING | |||
| C1 | Voltage tester tested on known live source → tested on work section → tested live source again Acceptance: Three-point test procedure followed; voltage <5 V on all phases to earth | CEA Reg 40 — Dead testing | OK NC NA HOLD |
| C2 | Portable earths applied at work site (HT); visible earth connection to each phase Acceptance: Earth leads rated for fault level; clamps tight; both ends visible to workers | CEA Reg 41 — Earthing | OK NC NA HOLD |
| C3 | Work zone boundary marked; live conductors barricaded; warning signs posted Acceptance: Live parts screened / barricaded; signs DANGER LIVE; work zone marked | Cl. 8 — Work zone | OK NC NA HOLD |