Electrical Safety & Regulation interview questions

1. A.each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
2. B.isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
3. C.NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
4. D.full-body harness with double lanyard anchored above about 1.8 m, ladders at a 4:1 slope, and no work near live overhead lines from ladders or structures without a permit and discharge

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1. A.Arc flash PPE categories
2. B.Five safety rules
3. C.Electrical accident reporting
4. D.Permit-to-work

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1. A.Five safety rules — CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV
2. B.Five safety rules — IEC 60479 places the onset of fibrillation near 30–50 mA for a few hundred milliseconds, which is why 30 mA residual-current protection is chosen for personnel
3. C.Five safety rules — NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
4. D.Five safety rules — isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work

Answer + AI explanation with Pro

1. A.each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
2. B.full-body harness with double lanyard anchored above about 1.8 m, ladders at a 4:1 slope, and no work near live overhead lines from ladders or structures without a permit and discharge
3. C.isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
4. D.CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report

Answer + AI explanation with Pro

1. A.Arc flash PPE categories
2. B.Five safety rules
3. C.Lockout-tagout
4. D.Working at height

Answer + AI explanation with Pro

1. A.Lockout-tagout — Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
2. B.Lockout-tagout — IEC 60479 places the onset of fibrillation near 30–50 mA for a few hundred milliseconds, which is why 30 mA residual-current protection is chosen for personnel
3. C.Lockout-tagout — each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
4. D.Lockout-tagout — CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV

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1. A.isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
2. B.formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
3. C.CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report
4. D.CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV

Answer + AI explanation with Pro

1. A.Arc flash PPE categories
2. B.Permit-to-work
3. C.IS 5216
4. D.Five safety rules

Answer + AI explanation with Pro

1. A.Permit-to-work — formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
2. B.Permit-to-work — each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
3. C.Permit-to-work — isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
4. D.Permit-to-work — NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance

Answer + AI explanation with Pro

1. A.NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
2. B.formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
3. C.isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
4. D.CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report

Answer + AI explanation with Pro

1. A.Lockout-tagout
2. B.Ventricular fibrillation threshold
3. C.Electrical accident reporting
4. D.Working at height

Answer + AI explanation with Pro

1. A.Electrical accident reporting — CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report
2. B.Electrical accident reporting — formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
3. C.Electrical accident reporting — CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV
4. D.Electrical accident reporting — NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance

Answer + AI explanation with Pro

1. A.isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
2. B.each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
3. C.Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
4. D.NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance

Answer + AI explanation with Pro

1. A.Five safety rules
2. B.Arc flash PPE categories
3. C.Safety working clearance
4. D.Ventricular fibrillation threshold

Answer + AI explanation with Pro

1. A.Arc flash PPE categories — Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
2. B.Arc flash PPE categories — NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
3. C.Arc flash PPE categories — IEC 60479 places the onset of fibrillation near 30–50 mA for a few hundred milliseconds, which is why 30 mA residual-current protection is chosen for personnel
4. D.Arc flash PPE categories — isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work

Answer + AI explanation with Pro

1. A.Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
2. B.each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
3. C.IEC 60479 places the onset of fibrillation near 30–50 mA for a few hundred milliseconds, which is why 30 mA residual-current protection is chosen for personnel
4. D.CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report

Answer + AI explanation with Pro

1. A.Working at height
2. B.IS 5216
3. C.Five safety rules
4. D.Arc flash PPE categories

Answer + AI explanation with Pro

1. A.IS 5216 — Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
2. B.IS 5216 — isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
3. C.IS 5216 — CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV
4. D.IS 5216 — each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed

Answer + AI explanation with Pro

1. A.formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
2. B.full-body harness with double lanyard anchored above about 1.8 m, ladders at a 4:1 slope, and no work near live overhead lines from ladders or structures without a permit and discharge
3. C.NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
4. D.CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV

Answer + AI explanation with Pro

1. A.Five safety rules
2. B.Working at height
3. C.Safety working clearance
4. D.Arc flash PPE categories

Answer + AI explanation with Pro

1. A.Safety working clearance — each worker fits a personal lock and tag on every isolation point after switching off and testing for dead, so no one can re-energise the circuit until the last lock is removed
2. B.Safety working clearance — formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
3. C.Safety working clearance — Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
4. D.Safety working clearance — CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV

Answer + AI explanation with Pro

1. A.NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
2. B.isolate, secure against reconnection, verify dead with a tested detector, earth and short-circuit, then screen adjacent live parts, in that order before any work
3. C.CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV
4. D.IEC 60479 places the onset of fibrillation near 30–50 mA for a few hundred milliseconds, which is why 30 mA residual-current protection is chosen for personnel

Answer + AI explanation with Pro

1. A.Ventricular fibrillation threshold
2. B.Safety working clearance
3. C.Electrical accident reporting
4. D.IS 5216

Answer + AI explanation with Pro

1. A.Ventricular fibrillation threshold — CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV
2. B.Ventricular fibrillation threshold — CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report
3. C.Ventricular fibrillation threshold — Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
4. D.Ventricular fibrillation threshold — IEC 60479 places the onset of fibrillation near 30–50 mA for a few hundred milliseconds, which is why 30 mA residual-current protection is chosen for personnel

Answer + AI explanation with Pro

1. A.NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
2. B.CEA schedule of minimum distances from exposed live parts for work: 2.6 m at 12 kV, 2.8 m at 36 kV, 3.1 m at 72.5 kV, 3.7 m at 145 kV, 4.3 m at 245 kV and 6.4 m at 420 kV
3. C.CEA Safety Regulations require every fatal or non-fatal electrical accident to be reported to the Electrical Inspector within 48 hours, followed by a detailed written report
4. D.full-body harness with double lanyard anchored above about 1.8 m, ladders at a 4:1 slope, and no work near live overhead lines from ladders or structures without a permit and discharge

Answer + AI explanation with Pro

1. A.Lockout-tagout
2. B.Arc flash PPE categories
3. C.Permit-to-work
4. D.Working at height

Answer + AI explanation with Pro

1. A.Working at height — NFPA 70E categories 1 to 4 correspond to arc ratings of 4, 8, 25 and 40 cal/cm², selected from the incident energy calculated at the working distance
2. B.Working at height — Indian recommendations on safety procedures and practices in electrical work, Part 1 general and Part 2 life-saving techniques including rescue and artificial respiration
3. C.Working at height — formal authorisation by an issuer to a receiver listing the isolations, earths and safe zone, held live until the receiver returns it and the issuer cancels it before re-energisation
4. D.Working at height — full-body harness with double lanyard anchored above about 1.8 m, ladders at a 4:1 slope, and no work near live overhead lines from ladders or structures without a permit and discharge

Answer + AI explanation with Pro