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NEC Article 230, Services

Let’s take a closer look at Article 230 and the NEC 2020 Code changes, which covers service conductors and equipment for control and protection of services.

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2020 NEC | Article 590, Temporary Installations

Because temporary electrical installations present a special set of hazards, they have their own Article in the NEC code. Read more to learn about how to safely reinstall previously used services, parts, or components in a temporary installation.

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Recruiting Water and Wastewater Operators: Tips for Future Employees

This article discusses why wastewater is a good career choice, what skills and knowledge an operator needs, and how to find your first job in the water/wastewater field. 

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Developing Troubleshooting Skills for HVAC Technicians

Troubleshooting of HVACR systems and equipment can often become a time-consuming, frustrating process. Here are some fundamental concepts that can help anyone become a more proficient troubleshooter.

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The Rebirth of Analog Video Surveillance

We’re currently experiencing a resurgence of analog surveillance systems. Here’s where analog systems can work better than internet protocol (IP) ones!

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The Electrician’s Hidden Resource. NFPA 70E: Standard for Electrical Safety in the Workplace | 2021

If I were to tell you the new NFPA 70E: Standard for Electrical Safety in the Workplace is available in both digital and hardcopy and includes new requirements for 2021 that are simply the bee’s knees, would you run out and get yourself a copy? Would you phone your friends […]

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Pass Your Texas Electrician Exam

No matter how you look at it, licensing exams are hard. This is especially true of electrical licensing exams. During fiscal year 2020, only 28.7% of Texas electrical exam takers passed their exam.

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A Special Message to Electricians: Saving an Electrical Industry in Decline

Licensed electricians will be in high demand! It will take licensed electricians to pull the electrical permits and to install all of the solar PV systems.

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Sizing Equipment Grounding Conductors (EGC) Table 250.122: What’s New in the 2020 NEC?

If you turn to Section 250.122 in your NEC, you find information that has assisted electricians sizing equipment grounding conductors (EGC) for longer than most electricians have even been twisting wire.If you were on the job in 1968, you would have turned to Table 250.95 in your NEC for this information instead of Table 250.122, but the information was essentially the same.In 1968 you also would have found that an ungrounded (hot) branch circuit conductor protected by a 6000-amp overcurrent device required no less than a 1200 kcmil aluminum equipment grounding conductor… assuming you were using an aluminum equipment grounding conductor. That information remained unchanged for 50 years. But as the saying goes, “All good things must come to an end.”

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Service Disconnects: How Many and Where to Put Them. What’s New For 2020?

NEC Section 230.71. Six Switches or Circuit Breakers in One Enclosure
Since the 1937 edition of the NEC, the service disconnecting means used to isolate a building’s premises wiring from the utility provider’s conductors has been allowed to consist of as few as one, but as many as six switches or sets of circuit breakers.

A veteran electrician would tell you that requirement (or permission, depending on your perspective) means six throws of the hand can be used to control all power on the property. Our veteran electrician is correct – if there is one electrical service on the property.

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Bathroom Branch Circuits in the 2020 NEC

Bathroom branch circuit requirements have changed for the 2020 Code cycle. The one 20-amp branch circuit traditionally required by NEC Section 210.11(C)(3) to feed only receptacles in dwelling unit bathroom(s) is now restricted to feeding only countertop receptacles in those same bathroom(s).

The receptacles permitted on this newly defined branch circuit include any countertop receptacles required to be within 3 feet of the bathroom’s sink basin and any other receptacle(s) installed to serve countertops or similar work surfaces in these bathroom(s).

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Kitchen Island, Peninsular-Countertop, and Work Surface Receptacle Requirements

The 2020 National Electrical Code (NEC) has ushered in a brand-new method for determining the number of receptacle outlets required to serve island countertops; peninsular countertops; and work surfaces located in kitchens, pantries, breakfast rooms, dining rooms, and similar areas of a dwelling unit.

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Splicing NM Cable in Walls and Other Concealed Spaces

If you are an electrical contractor that has ever wired a room addition, you will likely be familiar with this process.
Before ever attempting to provide an estimate, you must first determine how to get power from the home’s existing breaker panel to the new lighting and receptacle outlets in the addition. Bidding the individual outlets for the new addition is relatively easy, but bidding power to feed them can take some investigation and imagination.

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NEC Article 230, Services

Most Recent

2020 NEC | Article 590, Temporary Installations

Recruiting Water and Wastewater Operators: Tips for Future Employees

Developing Troubleshooting Skills for HVAC Technicians

The Rebirth of Analog Video Surveillance

Recently in

The Electrician’s Hidden Resource. NFPA 70E: Standard for Electrical Safety in the Workplace | 2021

Pass Your Texas Electrician Exam

A Special Message to Electricians: Saving an Electrical Industry in Decline

A Special Message to Electricians: Saving an Electrical Industry in Decline

A Special Message to Electricians: Saving an Electrical Industry in Decline

Sizing Equipment Grounding Conductors (EGC) Table 250.122: What’s New in the 2020 NEC?

Service Disconnects: How Many and Where to Put Them. What’s New For 2020?

Bathroom Branch Circuits in the 2020 NEC

Kitchen Island, Peninsular-Countertop, and Work Surface Receptacle Requirements

Splicing NM Cable in Walls and Other Concealed Spaces

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