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NEC 2020

News supply-side-connection-c
NEC 2020 | 705.11 | Load and Supply Side Connections

The National Electric Code allows for a few different ways to interconnect PV systems to utility systems. In two editions of Code Corner, Ry...

January 17, 2023
Featured Mayfield Code Corner NEC 691
NEC 2020 | 691 | Large-scale PV electric supply stations

On an edition of Mayfield Renewables’ Code Corner, founder and CEO Ryan Mayfield walks us through National Electric Code (NEC) 2020 Ar...

October 24, 2022
Featured Use-on-9_Sollega_CORE1_CommercialRooftopInstall
Meet UL 3741: How this C&I rooftop PV system complies...

You’ve likely forgotten this, but there are three ways to meet National Electric Code (NEC) 690.12 B[2] — the infamous rule rega...

April 18, 2022
Policy fire alarm
SEC investigating Tesla’s solar fires – a reminder of PV...

Multiple outlets reported this week that the U.S. Securities and Exchange Commission (SED) has opened an investigation into Tesla because of...

December 8, 2021
Featured national-electrical-code-2020
Review of NEC 2020 code revisions and label changes for...

The new National Electrical Code 2020 (NEC 2020) revision is now the latest installment of changes to Article 690 as well as other solar rel...

September 7, 2021
News
HellermannTyton groups your 2020 NEC 690 solar PV labels in...

HellermannTyton has grouped all solar labels required for PV installations to comply with the 2020 updates to Article 690 of the National El...

August 4, 2021
News
Is UL 3741 an alternative to Module-Level Shutdown?

As debate continues regarding the unintended consequences of the Module Level Shutdown requirement in the National Electric Code (NEC, secti...

June 17, 2021
News Toddler height and any disconnect switch 60 amps or less have no guards
Lock that box: Hazard posed by switch disconnects in PV...

Update: This article has been updated to remove the claim that the PV line in would still be live if the switch was off.  While we&rsqu...

January 19, 2021
News FIMER and fire raptor
IMO FireRaptor receives UL PVRSS listing with FIMER solar inverters

IMO keeps racking up the UL PVRSS (Photovoltaic Rapid Shutdown System) listings, last week adding the Fimer UNO range of solar inverters fro...

December 7, 2020
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