This is the establishment of a reference for the electrical power source (AC or DC), electrical equipment or both
Grounding
Bonding
Electrode System
TMGB
All ferrous metal pathways must be bonded at both ends regardless of length when containing a bonding conductor?
What is the width of the TMGB
3.94 inches
3.95 inches
3.93 inches
4 inches
This is the copper conductor that interconnects the TMGB to TGB
TBB
GE
TEBC
ACEG
What is the recommended maximum value for the bonding resistance between any 2 points where bonding exists
0.1 Ohms
1 Ohm
10 Ohms
0.01 Ohms
This type of protector is used to protect against sneak current
Primary
Secondary
Data & Fire Alarm
Carbon
This type of protector has a reaction time of 3-5ns
Gas
Solid State
The primary responsibility of the ___________ is safeguarding personnel, property and equipment from foreign electrical voltages and current
ITS Installer
Qualified Electrican
List 3 distinct, yet interconnected grounding systems (Select all correct)
AC Grounding Electrode System
Equipment Grounding System
Telecommunications Bonding Infrastructure
Supplemental Ground System
These are to be installed on exposed circuits as near as possible to the point at which the exposed cables enter the bulding
Primary Protection
Secondary Protection
Data & Fire Alarm Protector
Bonding conductors are designed to intentionally carry AC ground fault current or lightning strike current
This type of protector has a reaction time of 15ns or more
Gas tubes
Solid state
Carbon blocks
This is required on every 3rd floor and top floor of a multi-story building that has multiple ER/TRs on the same floor
TGB
GEC
This serves as the dedicated extension of the building AC grounding electrode system of the telecommunications infrastructure
This is the grounding connection point for telecommunications systems and equipment in the area served by an ER or TR
BCT
How far does the conductor need to extend beyond the connector if using a set-screw, pass-through style lug
1/8"
1/4"
1/2"
3/8"
This type of protector has a reaction time of 10-15 ns
Fire & data
What is the maximum amount of exposure between the insulation and the bonding connector
Interbuilding circuits are considered to have lightning exposure unless 1 or more conditions exist (select all correct)
Buildings close together and sufficiently high
Cable run is 140ft or less (underground or in conduit)
Area having an avg. of 5 or fewer t-storms per year and earth resistivity less than 100 ohms
This type of protector has a reaction time of 1-2 ns
fire & data
carbon
gas
solid state