Question 1 of 10
What does PME stand for?
PME stands for Protective Multiple Earth, a grounding method.
Question 2 of 10
Which of the following is another name for PME in the US?
In the US, PME is often referred to as Grounding Electrode System (GES) in the NEC.
Question 3 of 10
What does the 'C' in TN-C-S stand for?
The 'C' in TN-C-S stands for Combined, indicating that the neutral and protective earth conductors are combined for a portion of the distribution network.
Question 4 of 10
What does the 'S' in TN-C-S stand for?
The 'S' in TN-C-S stands for Separate, indicating that the neutral and protective earth conductors are separate in the consumer's installation.
Question 5 of 10
In a TN-C-S system, where are the neutral and protective earth conductors combined?
In TN-C-S systems, the neutral and protective earth conductors are combined at the supply source side.
Question 6 of 10
What is PNB an abbreviation of?
PNB is an abbreviation for Protective Neutral Bonding.
Question 7 of 10
In a PNB system, where is the Neutral to Earth (TN) connection made?
In a PNB system, the Neutral to Earth (TN) connection is made on the consumer side.
Question 8 of 10
What is the recommended distance between the earth and the consumer installation in a PNB system?
The recommended distance is less than 40 meters, to minimize voltage in the event of a broken neutral.
Question 9 of 10
What is a potential hazard in a PME system if the PEN conductor is open-circuited?
An open PEN conductor can lead to a dangerous voltage on exposed conductive parts, causing electric shock.
Question 10 of 10
According to the article, can a combined neutral be installed on the consumer side?
The article states that a combined neutral should not be installed on the consumer side unless specific regulations allow it.
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