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What's That Table?
The 200's
Equipment
General Knowledge
100

What does Article 100 cover?

Definitions

100

This table lists conductor ampacity for up to 3 current-carrying conductors in a raceway or cable.

Table 310.16

100

What does Article 210 cover?

Branch Circuits

100

What does Article 430 cover?

Motors, Motor Circuits, and Controllers

100

You’re terminating a 3-phase motor, and it runs backwards after startup — what’s your fix?

Swap any two of the three phase conductors.

200

What does Article 110 cover?

Requirements for Electrical Installations

200

This table gives minimum cover requirements for direct-buried cable.

Table 300.5

200

What does Article 250 Cover? 

Grounding & Bonding

200

What does Article 630 cover?

Electric Welders

200

When using a megger, what are you testing?

Breakdown or leakage in insulation between conductors or to ground.

300

What does Article 310 cover?

Conductors for General Wiring

300

This table provides ambient temperature correction factors.

Table 310.15(B)(1)

300

What does Article 230 cover? 

Feeders

300

What does Article 620 cover?

Elevators, Dumbwaiters, Escalators

300

What is the minimum ladder distance (setback) from a wall if the ladder is 20 feet long?

About 5 feet (¼ of the ladder’s height).

400

What Article covers Swimming Pools? 

680

400

This table gives grounding electrode conductor sizes.

Table 250.66

400

What does Article 220 cover?

Load Calculations

400

What’s the difference between bonding and grounding?

Bonding connects metal parts together; grounding connects to earth.

400

On What Table Can I Find Conductor Properties?  (hint its not in Chapters 1-8). 

Chapter 9 Table 8

500

What Article in the NEC covers Hazardous Locations? 

500

500

This table lists maximum motor overcurrent protection.

Table 430.52

500

What does Article 215 cover?

Feeders

500

What does Article 408 Cover? 

Panelboards
500

What does Article 460 cover?

Capacitors

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