Air-Conditioning and Refrigeration Systems
The Successful HVAC Company
According to industry experts there are over 100,000 HVAC contractors currently doing business in the U.S. However, statistics show that 50% of small […]
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The 2020 NEC Allows Electrical Inspectors to Periodically In...
The 2020 Code Making Panel has introduced a new and unprecedented Code section for this 2020 Code cycle that may prove controversial once time allows […]
NEC 2020 – What to Expect: Significant Changes and Adoptio...
It seems like we just started using the 2017 National Electrical Code, and now the 2020 version is available. There have been significant changes, acc[…]
Air-Conditioning and Refrigeration Systems
Top Advantages of Mini-Split Systems
The mini-split heating and cooling system was an idea that evolved from the basic window air conditioner. Window units are simple installations that o[…]
2020 NEC Changes to 430.122 Conductors – Minimum Size and ...
Changes to the 2020 NEC include the addition of several paragraphs in section 430.122. These changes will help the user to determine the correct ampac[…]
Grounding Systems Permitted to Be Connected on the Supply Si...
Section 250.25 is brand new for the 2020 Code cycle. It has been created to establish grounding and bonding rules for add-on disconnects, such as a PV[…]
