General Safety Flashcards
1
Q
What are the 3 levels of boundary for working on electrical equipment?
A
Limited restricted prohibited
2
Q
Range of current in which breathing may become difficult?
A
20-75ma
3
Q
What is an acceptable way of bending pvc pipe?
A
Heat blanket
4
Q
How do you get the cross sectional area of a conductor in inches to cmils?
A
Take the diameter of the conductor squared
A=d^2 that will give you area in cmils
5
Q
Amount of current that can cause severe burns and muscle contraction?
A
Over 200 ma
6
Q
Painful shock and ventricular fibrillation of the heart occurs at what current?
A
100-200ma
