Safety Flashcards
(21 cards)
00 glove color
Beige
00 glove voltage rating
500AC/750DC
Class 0 glove color
Red
Class 0 glove rating
1000AC
Electrical gloves are rated for roughly ___x higher voltage DC than AC
1.5
Class 1 gloves color
White
Class 1 gloves rating
7500 AC
Class 2 gloves color
Yellow
Class 2 gloves rating
17,000 AC
Class 3 gloves color
Green
Class 3 gloves rating
26,500
Class 4 gloves color
Orange
Class 4 gloves rating
40,000 AC
How to calculate Arc flash boundry (this is to answer other questions, I don’t think it will be a question by itself.)
D=[4.92 x MVA x t]^(1/2)
Prior to confined space entry what order do these tests need to be done in?
1. flammable gasses and vapors
2.potential toxic air contaminants
3. oxygen content
3,1,2
Oxygen, flammable, toxicity
NFPE 70E provides what
Practical safe work practices
NFPA 70E-2024 Table 130.5 (G) does not require a balaclava when wearing an arc flash hood for incident energies over _____ cal/cm2.
12
Which Subpart of OSHA 29 CFR 1910 addresses electrical safety?
S
What is the recommended thermal rating range for arc flash gloves?
10 to 28 cal/cm2
Non load break cable connectors may be used as a disconnecting means in an emergency situation.
True
How often should rubber blankets be visually inspected?
Every 6 months.
