Code Quiz

Nov 5, 2009, By Steven Owen

What are the minimum and maximum lengths permitted for the grounding conductor on network-powered broadband communications systems network interface units that contain protectors?...

Code Quiz

Oct 22, 2009, By Steven Owen

When installing receptacles for circuits and equipment operating at less than 50V in kitchens, laundries and other locations where portable appliances are likely to be used...

Code Quiz

Oct 8, 2009, By Steven Owen

What is the required minimum depth of the working space in the direction of live parts?...

Code Quiz

Sep 24, 2009, By Steven Owen

Installing wiring in escalators, moving walkways, platform lifts, stairway chairlift runways, machinery spaces, control spaces, or machine/control rooms...

Code Quiz

Sep 10, 2009,

When installing freestanding-type partitions that are cord-and-plug connected, electrically connected, and mechanically contiguous, which of the following statements is true?...

Code Quiz

Aug 20, 2009, By Steven Owen

Where exactly can manufactured wiring systems be installed?...

Code Quiz

Aug 6, 2009, By Steven Owen

For a portable or mobile sign, which is cord- and plug-connected, what is required to protect personnel who may touch or contact the sign?...

When are two or more control circuits for permanent amusement attractions permitted to occupy the same cable, cable tray, enclosure, or raceway, without regard to whether the individual circuits are alternating current or direct current?...

Code Quiz

Jul 2, 2009, By Steven Owen

According to the 2008 NEC, who is permitted to service the control systems in a permanent amusement attraction? Hint: Have you reviewed the requirements of new Art. 522?...

Code Quiz

Jun 18, 2009, By Steven Owen

What is the minimum conductor size required for the feeder conductors, and what is the maximum size OCPD setting permitted per the above-referenced section of the Code?...

Code Quiz

Jun 4, 2009,

What is the minimum ampacity and size required for the supply neutral conductor is this example?...

Code Quiz

May 21, 2009, By Steven Owen

One such chemical may explode when mixed with air. What is that chemical?...

Code Quiz

May 7, 2009, By Steven Owen

With respect to hazardous (classified) locations, including Class I Group Classifications — only one group has a single chemical listed. Can you name the group letter designation and chemical?...