Jun 03, 2020
Its 95 degrees on a hot, humid day. A service repairman, working on your HVAC, opens the door to your vented crawlspace. He observes ductwork dripping with water, mold on floor joist, and termite tunnels on the crawlspace walls. He services your air conditioner and recommends you call an exterminator. Why are you having all these issues in your crawlspace? Could it be that the naturally vented crawlspace doesn’t work anymore? Some people would say, it never worked. Why is this?
Jun 03, 2020
Correctly operating an electrical service business will require you have skilled, personable, service technicians, a real live person to answer the phone, and a pricing system that covers all of your operating costs while generating profits! It’s time to throw out the old Time & Material (T&M) billing method and start charging by the Flat Rate. Let’s take a look at both:
Jun 03, 2020
Section 408.6: A Brand-New Addition to the 2020 NEC. NEC section 408.6 states: Switchboards, Switchgear, and Panelboards shall have a short-circuit current rating (SCCR) not less than the available fault current. In other than one- and two-family dwelling units, the available fault current and the date the calculation was performed shall be field marked on the enclosure at the point of supply. The marking shall comply with 110.21(B)(3). Making NEC 408.6 Simple This new Code Section simply means that electrical panels including main-breaker and main-lug type panels and switchboards & switchgear equipment must be rated (in amps) to withstand the high levels of current that will flow should a short-to-ground or other fault occur at the equipment. In ALL locations other than dwelling units, that anticipated fault current must be marked on the equipment enclosure near where the supply conductors enter in, along with the date that the calculation producing that number was performed. The new Code Section also says the markings on the equipment must comply with 110.21(B)(3). Section 110.21(B)(3) tells us that markings must be sufficiently durable to withstand the environment.
Jun 01, 2020
3 Steps to Renew My Oregon Electrical LicenseStep 1 - When Does My Oregon Electrical License Expire:The renewal deadline for Limited JY Manufacturing Plant (PJ), Limited Maintenance Electrician (LME), Limited Energy Class A (LEA), and Limited Energy Class B (LEB) electrician license types is October 1, 2020. This deadline is for...
May 19, 2020
Renewing your electrical license shouldn’t be a hassle. JADE Learning’s online continuing education courses are convenient and affordable, letting you complete your credits on your own time and at your own pace. Learn more about the online electrical courses we offer. If you are someone who has always attended classroom...
May 06, 2020
Electric vehicle (EV) charging is not new, as Article 625 was introduced to the National Electrical Code with the 1996 edition. The following year, the Toyota Prius became the first mass-produced (hybrid) electric vehicle. More followed, including Tesla, Nissan, and Chevrolet. Until recently, however, the only viable method for charging an electric or hybrid vehicle was via a direct connection to a power supply, either from premises wiring or at a charging station. For the 2017 Code cycle, both definitions and requirements have been added to Article 625 for the purpose of regulating another type of EV charging: wireless power transfer, or wireless charging. Before we examine the Code requirements, let’s answer a couple of important questions. First, how does wireless charging work? Second, how efficient is this technology?
May 05, 2020
The spread of COVID-19, or the Coronavirus, has impacted almost every aspect of daily life. Local and state governments are doing their part to help prevent the spread of the virus. With prohibitions on gatherings of more than just a few people, many providers and/or states are canceling in-person continuing...
May 05, 2020
When we see the acronym HVAC, most only think of heating and air conditioning. But the V is for ventilation, an important role when considering the air quality in buildings. Indoor air quality is achieved through ventilating and filtering air in a space. The International Mechanical Code’s definition of ventilation is “The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, a space.” When we supply fresh air to spaces and remove stale air, we improve the breathing air quality for the occupants. When air is “conditioned”, it means several things that include removing or adding heat, cleaning the air, removing moisture, and replacing air.
