Course Main Menu

GOAL: You must answer all 75 questions, score 75% or more, and collect 5 hrs 00 mins to finish the course.

Progress: None Yet!

Score: None Yet!

Time: None

OR Click on a section below...

UL 1598 is mentioned in NEC Annex A and has several editions.

#1) 90.5(C) Explanatory Material.

A change in the <strong>NEC Style Manual</strong> during the 2023 code cycle has brought all definitions to Article 100

#2) Article 100.

Wiring in this device box under the sink must be accessible.

#3) Article 100 Definitions. Accessible (as applied to...

NEC Section 694.40(A) states that attached metal parts, such as turbine blades and tails that are not “likely to become energized”, shall not be required to be grounded or bonded.

#4) Article 100 Definitions. Likely to Become Energize...

A conference room table is a type of Work Surface.

#5) Article 100 Definitions. Work Surface.

QR codes are an acceptable way to obtain product installation instructions.

#6) 110.3(B) Installation and Use.

A permanent arc flash label shall be field, or factory applied to service equipment and feeder supplied equipment rated 1000 amperes or more.

#7) 110.16(B) Service Equipment and Feeder Supplied Eq...

In the 2023 NEC, not only is the circuit source required to be marked, but the “location” of the circuit source as well.

#8) 110.22(A) Identification of Disconnecting Means.

Code Violation! The space in front of the enclosure shall comply with the depth requirements of Table 110.26(A)(1) and shall be unobstructed to the floor by fixed cabinets, <strong>walls</strong>, or <strong>partitions</strong>.

#9) 110.26(A)(4) Limited Access.

This inspection would not pass without a level grade, floor, or platform in the work space required for the enclosed panelboard.

#10) 110.26(A)(6) Grade, Floor, or Working Platform.

Notice the roof drain is routed into the required dedicated equipment space for some of the service equipment.

#11) 110.26(E) Dedicated Equipment Space.

Section 200.6 provides the methods permitted for grounded conductor identification.

#12) 200.6 Means of Identifying Grounded Conductors.

Branch Circuits are the conductors between the final overcurrent device protecting the circuit and the outlet. Requirements for branch circuits over 1000 volts ac, or 1500 volts dc, nominal are now located in new Article 235.

#13) Article 210.

A multiwire branch circuit has two or more ungrounded conductors that have a voltage between them, and a neutral conductor that has equal voltage between it and each ungrounded conductor of the circuit.

#14) 210.4 Multiwire Branch Circuits.

If this measurement is within 6 feet from the top inside edge of the bowl of the sink, then listed Class A GFCI protection is required for the receptacle.

#15) 210.8 Ground-Fault Circuit-Interrupter Protection ...

Since there is a sink and permanent provisions for beverage preparation in this dwelling unit bar area, all single phase, 125-volt through 250-volt receptacles installed in this “area” require GFCI protection.

#16) 210.8(A) GFCI Protection for Dwelling Units.

This receptacle requires GFCI protection even though it may not be within 6 feet of the sink.

#17) 210.8(B) GFCI Protection for Other Than Dwelling U...

In the 2023 NEC, most dishwashers, electric ranges, wall-mounted ovens, microwave ovens, and counter-mounted cooking units will require GFCI protection.

#18) 210.8(D) GFCI Protection for Specific Appliances.

An “<strong>Outlet</strong>”, according to the NEC Article 100 definition, is <strong><em>a point on the wiring system at which current is taken to supply utilization equipment</em></strong>.

#19) 210.8(F) GFCI Protection for Outdoor Outlets.

Branch/Feeder AFCI, Outlet Branch-Circuit-type AFCI, System Combination type AFCI.

#20) 210.12 AFCI Protection.

LED lighting and other energy efficient systems may benefit from the new allowance to use 10-ampere branch circuits.

#21) 210.18 Branch Circuit Rating.

Branch circuits are the circuit conductors between the final overcurrent device protecting the circuit and the outlet.

#22) 210.19 Conductors - Minimum Ampacity and Size.

Before this code change, it could be argued that a receptacle was required on the wall to the right of the range since the wall space behind the range could be included when measuring for receptacles.

#23) 210.52(A)(2) Wall Space for Dwelling Unit Receptac...

The receptacles installed under the cabinets satisfy the required countertop outlets needed within 24 inches of the cook top.

#24) 210.52(C) Dwelling Unit Receptacle Outlets at Coun...

Hazards from having receptacles on islands and peninsulas have made them optional in the 2023 NEC.

#25) 210.52(C)(2) & (3) Island and Peninsular Counterto...

The marking or labels REQUIRED BY Section 225.41 shall be located on the outside front of the disconnect enclosure with red background and white text.

#26) 225.41 Emergency Disconnects.

Service conductors are NOT permitted to be installed in the same underground box as non-service conductors.

#27) 230.7 Other Conductors.

Some service disconnecting means configurations permitted in 2023 NEC Section 230.71(B).

#28) 230.71(B) Two to Six Service Disconnecting Means.

If an adjustable trip circuit breaker is installed in accordance with 240.4(B)(1-3), it is permitted to be adjusted to a value not exceeding the next higher standard size overcurrent device shown in Table 240.6(A) above the ampacity of the conductors being protected where restricted access is provided in accordance with 240.6(C).

#29) 240.4(B) Overcurrent Devices Rated 800 Amperes or ...

Section 240.6(D) was added to address some of the newer circuit breakers available that have adjustable settings which can be accessed remotely by a computer, smartphone, or tablet.

#30) 240.6(D) Remotely Accessible Adjustable-Trip Circu...

This new language applies if one or more feeder OCPD’s are required to be selectively coordinated with a service overcurrent protective device by other requirements in the NEC.

#31) 240.11 Selective Coordination.

Section 240.89 requires replacement trip units to be listed for use with the circuit breaker type in which they are installed.

#32) 240.89 Replacement Trip Units.

New Article 245 covers overcurrent protection for systems rated over 1000 volts ac (such as this 15kV medium voltage circuit breaker), 1500 volts dc.

#33) Article 245 Overcurrent Protection for Systems Rat...

Grounding electrode conductors are not permitted to be installed through equipment ventilation openings.

#34) 250.64(G) Enclosures with Ventilation Openings.

In some cases, the underground metal water piping enters the building into a basement or crawl space and connects to interior metal water piping that is technically within 5 feet of the point of entry but is actually more than 5 feet (as measured along the piping).

#35) 250.68(C) Grounding Electrode Conductor Connection...

#36) 250.102(C)(2) Size of SSBJ for Parallel Conductor ...

Upgrading to a meter socket enclosure equipped with a main service disconnect can render the existing service conductors as a feeder.

#37) 250.140 Frames of Ranges and Clothes Dryers.

NEC Table 300.5(A).

#38) Table 300.5 Minimum Cover Requirements.

The 6-inch free conductor required at each outlet, junction, and switch point is permitted to be spliced.

#39) 300.14 Length of Free Conductors at Outlets, Junct...

If an angle pull, u-pull, or splice of conductors 4 AWG or larger is made in an overcurrent device enclosure, it must comply with Section 314.28(A)(2).

#40) 312.8(A) Splices, Taps, and Feed-Through Conductor...

That the term “side” applies to any wall of a box other than the one opposite the opening.

#41) 314.24(C) Clearances for Side-Wiring Entrances.

Covering an underground box is permitted if the box location is effectively described and accessible for excavation. A description of the underground box location must be made available to those authorized to access, maintain, or inspect the wiring.

#42) 314.29 Boxes, Conduit Bodies, and Handhole Enclosu...

Type NM and Type NMC cables are now permitted to be used in detached garages of multifamily dwellings permitted to be of Types III, IV, and V construction.

#43) 334.10(2) Uses Permitted.

Where conduits are used with NM cables, a bushing is required at each end to protect the cable from abrasion.

#44) 334.15(B) Protection from Physical Damage.

Circled in yellow is a nonmetallic-sheathed cable with more than enough cable sheath extending in the enclosure. On the right are two nonmetallic-sheathed cables that have no cable sheath extending beyond the cable clamp, and the cable clamps are installed upside down.

#45) 334.19 NM Cable Entries.

The radius of the curve of the inner edge of the bend shall not be less than five times the cable diameter (based on the major diameter dimension for flat cables).

#46) 334.24 Bending Radius.

Standard clamps and dies that have not been modified could damage the PVC coatings and shall not be used on PVC-coated Rigid Metal Conduit.

#47) 344.28 Reaming and Threading.

Expansion fittings must be installed above grade when direct buried PVC conduit emerges from the ground and compensation is needed for earth settling or movement, including frost heave.

#48) 352.44 Expansion Fittings and Earth Movement.

In the 2023 NEC, Section 358.10(A)(1) was revised to specifically allow EMT in direct burial applications with fittings identified for direct burial.

#49) 358.10 Uses Permitted.

Some disconnect switches can be opened with a tool while energized.

#50) 404.30 Switch Enclosures with Doors.

GFCI and GFPE are not the same. GFPE is for equipment protection and typically designed to trip in the 30 mA or higher range.

#51) 406.4(D)(8) Receptacle Replacements and Ground-Fau...

Physical protection of floor receptacles must allow the operation of floor-cleaning equipment without damage to receptacles.

#52) 406.4(G) Protection of Floor Receptacles.

Hinged covers of outlet box hoods (installed in wet or damp locations) must be able to open at least 90 degrees, or fully open if the cover is not designed to open 90 degrees from the closed to open position.

#53) 406.9(A) & (B) Receptacles in Damp or Wet Location...

The zone where receptacles are not permitted extends to the floor in the 2023 NEC.

#54) 406.9(C) Bathtub and Shower Space.

There are many different types of tamper-resistant receptacles currently available.

#55) 406.12 Tamper-Resistant Receptacles.

In the 2023 NEC, 408.4(B) requires marking on switchboards, switchgear, and panelboards (supplied by a feeder) to indicate where the power originates, as well as its physical location.

#56) 408.4(B) Source of Supply.

Panelboards can be listed with or without an enclosure.

#57) 408.9 Replacement Panelboards.

Ceiling-suspended (paddle) fans with luminaire (light kit) are not permitted within a zone measured 3 feet horizontally and 8 feet vertically from the top of the bathtub rim or shower stall threshold.

#58) 410.10(D) Bathtub and Shower Areas.

For indoor locations at other than dwellings and associated accessory structures, fluorescent or LED luminaires that use double-ended lamps and are equipped with ballasts or LED drivers that can be serviced in place must have a disconnecting means either internal or external to each luminaire.

#59) 410.71 Disconnecting Means for Fluorescent or LED ...

If the disconnecting means is readily accessible to unqualified persons (like in this public parking garage), any enclosure door or hinged cover of the disconnecting means enclosure that exposes energized parts when open requires a tool to open or must be capable of being locked.

#60) 440.11 General.

An HVAC disconnecting means must meet the working space requirements of NEC Section 110.26(A). The working space required for these HVAC disconnect switches is compromised by the line sets and Liquidtight conduits between the disconnect and the units.

#61) 440.14 Location.

Several changes regarding generator disconnecting means and emergency shutdown.

#62) 445.18 & 19 Disconnecting Means and Emergency Shut...

Receptacles and outlets on single- or 3-phase branch circuits operating at voltages above 150 volts to ground, but not exceeding 480 volts phase-to-phase shall be provided with SPGFCI protection not to exceed 20-mA ground-fault trip current.

#63) 680.5 GFCI and SPGFCI Protection.

If a pool pump motor in 680.21(C) is replaced or repaired, the replacement or repaired pump motor must be provided with ground-fault protection complying with 680.5(B) or (C), as applicable.

#64) 680.21(D) Pool Pump Motor Replacement.

For equipotential bonding, the shell of the splash pad includes the area traversed by pedestrians, bounded by the extent of the splash pad footing and rising to its exposed surfaces and its collection basin area.

#65) 680.54(C) Equipotential Bonding of Splash Pads.

A PV DC Circuit (as used in Article 690) includes any dc conductor in PV source circuits, PV string circuits, and PV dc-to-dc converter circuits.

#66) Figure 690.1.

2023 NEC Section 690.4(G) permits PV equipment where floating on bodies of water.

#67) 690.4(G) PV Equipment Floating on Bodies of Water.

Rapid Shutdown is not required for PV equipment and circuits installed on non-enclosed detached structures including but not limited to parking shade structures, carports, solar trellises, and similar structures.

#68) 690.12 Rapid Shutdown of PV Systems on Buildings.

In the 2023 NEC, new Section 700.11 provides a good start for introducing new language pertaining to Class-2-powered emergency lighting systems.

#69) 700.11 Wiring, Class-2-Powered Emergency Lighting ...

Devices that combine control signals with Class 2 emergency power on a single circuit shall be listed as emergency lighting control devices.

#70) 700.27 Class 2 Powered Emergency Lighting Systems.

Even though the language in 700.32(B) and (C) is triggered by replacing an OCPD in the “emergency system” or a modification, addition, or deletion “to the emergency system”, selective coordination should be reevaluated any time a replacement or modification occurs related to any OCPD that could impact the emergency system to comply with the new language in Section 240.11.

#71) 700.32 Selective Coordination.

Per UL Product category code ZMVV, wire splicing and tap connectors investigated for use on the line side of service equipment are marked on the connector, the smallest unit container or on an information sheet placed in the smallest unit container with one of the following: “SR” or “Suitable for use on the line side of the service equipment,” or equivalent.

#72) 705.11(B), (C), and (F) Conductors and Connections...

Article 725 covers power-limited circuits, including power-limited remote-control and signaling circuits, that are not an integral part of a device or of utilization equipment.

#73) 725.1 Scope.

#74) 725.24 Mechanical Execution of Work.

The revised language in 2023 is about the conduit length and the connectors are not counted.

#75) Chapter 9 Notes and Tables.

Thank you for choosing ElectricalLicenseRenewal.com

©2025 ElectricalLicenseRenewal.com. All Rights Reserved.