Underground
A Protection Extension can be taken by a person authorized to:
Category 3
What type of charge do electrons have?
a negative electrostatic
The winding of a transformer which is connected to the source is referred to as the _____________________ winding.
Primary
How often must a formal inspection of the rescue blocks be completed?
Annually
Which SPR rule refers to the meaning of Viable Rescue?
802
What size conductor is used for an underground 200 amp service?
4/0 triplex
For electric current to occur in a conductor, free electrons in the conductor must:
Move in one direction
The core of a transformer is made of laminated sheet-steel to reduce:
Eddy currents
How often should bucket rescues be practiced?
6 months
What is the key to success on a tailboard?
Communication
What does “XLPE” stand for?
Cross-linked poly-ethylene
What unit is used to measure electromotive force?
Volt
In a step-up transformer, which winding will contain more turns?
Secondary Winding
What are the two types of bucket rescue techniques?
Rope blocks and tipping
Class 0 (Zero) rubber gloves must be worn for work on voltages above:
31V AC & 150V DC
What colour is "C" phase?
Blue
What are the units used for measuring electrical resistance?
Ohm
The opposition to the flow of current is?
Resistance
What is the correct order of steps for completing a successful rescue?
Prepare, Analyze, Make scene safe, Call for help, Act quickly and safely
What must be done IMMEDIATELY before applying worker protection grounding / bonding to any conductor?
Test for potential by using an approved voltage checking device
What do the two white bands on an elbow mean?
Load break elbow
. For a voltage to be induced in a conductor by an external magnetic field, what must there be between the conductor and magnetic field?
Relative motion
The normal percentage change between taps on a distribution transformer in BC Hydro is:
4.5 %
In order for a non-breathing victim to have the best chance for a full recovery, resuscitation should start before what time?
4 minutes
The inner core of a double braided rope accounts for how much of the overall strength?
50%