EC&M Monthly Quiz May/June 2022: Electric Shock Drowning

Summer is upon us, which means it’s a great time to head out to the lake for some fun in the sun! However, safety always comes first, especially when it comes to preventing electric shock drowning (ESD). Take this five-question quiz to test your knowledge or learn more about ESD. After taking the quiz, enter for a chance to win a $25 gift card to Amazon, iTunes, or Cabela’s. Note: You don’t have to get all the answers correct to win.

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1. How many milliamps can cause paralysis?

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B. 20

C. 30

D. 40
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2. According to the Electric Shock Drowning Prevention Association, where do the majority of electric shock drowning deaths occur?

A. Public and private swiming pools

B. Bathtubs

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D. Water Parks

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3. Which one is more dangerous and why? Fresh water or salt water?

A. Fresh water because the water itself is more conductive than the human body.

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C. Salt water because the water itself is more conductive than the human body.

D. Salt water because the human body is much more conductive than the water itself.

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4. According to Sec. 555.5 of the 2020 NEC, pier power distribution systems, where qualified personnel service the equipment under engineering supervision, can exceed 250V phase-to-phase but must not exceed what amount of voltage?

A. 300V

B. 400V
C. 500V
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5. What requirement did the 2017 NEC introduce to marinas and boatyards to combat electric shock drowning or electrocutions?

A. Expanded the Scope of Art. 555 to include one-, two-, and multi-family dwellings, and residential condominiums

B. Reduced the trip setting level of the ground-fault protection device serving shore power receptacles from 100mA to 30mA

C. Added a new requirement for the installation of a permanent safety sign that gives notice of electrical shock hazard risks

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