The Mike Holt Podcast

Interconnected Electrical Power Production Sources, Supply-Side Source Connections [705.11]

When interconnected electrical power production sources, such as wind powered generators, solar PV systems, or fuel cells are connected in parallel with utility power, special considerations for safety and efficiency must be made. This makes supply-side source connections a most critical aspect of a safe and compliant installation. This podcast on Section 705.11 explains just what the requirements are to accomplish this.

Interconnected Electrical Power Production Sources, Power Control Systems [705.13]

Interconnected Electrical Power Production Systems Sources are connected in parallel with the serving utility with no transfer switch. There are complex requirements to install these systems safely and expert knowledge is required. Learn more about it in this podcast on section 705.13.

Interconnected Electrical Power Production Sources [705.1]

Anytime there is more than one source of power supplying a building, safety concerns arise. The rules for Interconnected Electrical Power Production Sources are contained in Article 705 in the NEC. Learn what is covered within this article in this podcast discussing the Scope of Article 705.

Inspectors Authority [90.4, 2020 NEC]

90.4 Inspector’s Authority – https://www.MikeHolt.com/code. The National Electrical Code is intended to be suitable for mandatory application by governmental bodies, but just who is responsible for ensuring the Code is followed once adopted? In this podcast on 90.4, we’ll explain what’s meant by the “authority having jurisdiction.”

Health Care Wiring Methods [517.13]

Often referred to as "redundant grounding", equipment grounding requirements in patient care spaces utilize two different types of equipment grounding conductors so an installation error or component failure won't result in the loss of the effective ground-fault current path. Listen to this podcast to find out which wiring methods meet these NEC requirements.

Hazardous Classified Locations [500.5]

Hazardous (Classified) Locations are unique because they have additional requirements when installing electrical equipment and circuits. But ? Find out how to identify these locations in this podcast.

Grounding, Transformers [250.30, 2020 NEC]

250.30 Grounding, Transformers – https://www.MikeHolt.com/bonding. In order to comply with NEC 250.30, you first need to understand what is meant by a “separately derived system” then you will understand what is trying to be accomplished in these Code requirements covered in this podcast.

Grounding, System and Equipment [250.4, 2020 NEC]

250.4 Grounding, System and Equipment – https://www.MikeHolt.com/bonding. In this podcast on the “General Requirements for Grounding and Bonding” we’ll discuss bonding and grounding of electrical systems and equipment and explain exactly why these terms have two entirely different meanings and why it is so important that you understand the purposes of the two. We’ll explain electrical system “grounding” and also equipment “bonding” which essentially means that any current-carrying conductive materials (metal) that are likely to become energized, be connected to an “effective ground-fault current path.

Grounding, Service Equipment [250.24, 2020 NEC]

250.24 Grounding, Service Equipment – https://www.MikeHolt.com/bonding. Before you can understand the grounding of an electrical service and equipment, you’ll need to understand just what a “service” is. This podcast will explain that and where we go from there to ensure compliance with NEC 250.24.

Grounding, Objectionable Current [250.6, 2020 NEC]

250.6 Grounding, Objectionable Current – https://www.MikeHolt.com/bonding. What is “objectionable current”? What are it’s causes, can it be prevented and if so, how? In this podcast, we discuss why objectionable current is a dangerous condition and the NEC requirements that serve to mitigate its causes.