2. Basics & Wiring

Question 1

What Article Covers the Spread of Fire or Products of Combustion (Fire Stopping)?

Answer 1

Article 300.21

Question 2

What Article Covers Ducts, Plenums, and Other Air-Handling Spaces?

Answer 2

Article 300.22

Question 3

What Article Covers Hazardous/Corrosive Environments? What other articles does it apply to?

Answer 3

Article 500, Also includes Articles 511-555

Question 4

How does NFPA 70 2017 define Dusttight?

Answer 4

“Constructed so that dust will not enter the enclosing case under specified test conditions.”

Question 5

What Article Covers Damp or Wet Locations (any cable, raceway, enclosure installed underground is considered to be damp or wet location)?

Answer 5

Article 300.5

Question 6

What Article Covers Building Control Circuits? (there are a broad number of building control circuits-examples are electric charging systems, elevators, fire pumps etc.)

Answer 6

Articles 600-770

Question 7

What Article covers the Install of optical fiber cables in a neat and workmanlike manner. Support exposed cables on the surface of ceilings and sidewalls so the cable will not be damaged by normal use.

Answer 7

Article 770

Question 8

Per NFPA 70 2017, Article 770.24 defines what can be used to secure cable, list examples.

Answer 8

Cables are permitted to be secured by straps, staples, cable ties, hangers, or similar fittings. - NFPA 70 2017, Article 770.24

Question 9

What Article Covers the Installation of Conductors with Other Systems

Answer 9

Article 300.3 (C)

Question 10

Part 1 of Article 760 covers what?

Answer 10

Covers the installation and wiring of all equipment used for fire protective signaling systems (fire alarm systems).

Question 11

Part 2 of Article 760 covers what?

Answer 11

Covers Non-Power-Limited Fire Alarm (NPLFA) Circuits-A non-power-limited circuit is a common circuit, similar to a home receptacle or lighting circuit, that is protected by a fuse or circuit breaker.

Question 12

Part 3 of Article 760 covers what?

Answer 12

Covers Power-Limited Fire Alarm (PLFA) Circuits- Power-limited circuits are circuits which have a power source that is a Class 3 transformer or a Class 3 DC power supply that limits the amount of available current in a short circuit condition.

Question 13

What are the Standards for Fire Alarm Cable (Voltage/Gauge/Material)

Answer 13

Shall have insulation suitable for 600V and must be 18AWG or larger Solid or Stranded Copper

Question 14

What does the acronym NPLFP stand for?

Answer 14

Non-Power-Limited Fire Alarm Plenum Cable

Question 15

What does the acronym NPLFR stand for?

Answer 15

Non-Power-Limited Fire Alarm Riser Cable

Question 16

What does the acronym NPLF stand for?

Answer 16

Non-Power-Limited Fire Alarm Cable

Question 17

What are the characteristics for NPLFP wire and where is is suitable for?

Answer 17

Adequate fire resistance & low smoke producing. Cables used for spaces with Environmental Air

Question 18

What are the characteristics for NPLFR wire and where is is suitable for?

Answer 18

Fire resistant characteristics to prevent carrying of fire between floors. Cables used for a vertical run in a shaft or from floor to floor

Question 19

What are the characteristics for NPLFR wire and where is is suitable for?

Answer 19

Resistant to the spread of fire. Cables used for general purpose fire alarm use with exceptions for Riser, Ducts, Plenums and Environmental Air Spaces