--- title: et cetera... a blog of bright ideas from ETC | National Electrical Code description: National Electrical Code | Home to ideas, tips, interviews, news, views and all kinds of other stuff related to ETC, its products, customers, and the industry in general. image: https://blog.etcconnect.com/hubfs/Logos%20-%20Icons%20-%20Design%20Elements/ETC_4c-1.png --- - [ETCCONNECT](https://etcconnect.com/) - [ABOUT](https://blog.etcconnect.com/about) - [AUTHORS](https://blog.etcconnect.com/blog-authors) - [CONTACT](https://blog.etcconnect.com/contact) [Follow us on Facebook](https://www.facebook.com/ElectronicTheatreControls) [Follow us on Instagram](https://www.instagram.com/ElectronicTheatreControls) [Follow us on LinkedIn](https://www.linkedin.com/company/electronic-theatre-controls) [Follow us on LinkedIn](https://www.youtube.com/user/ETCVideoLibrary) [![EtCetera\_319x104](https://blog.etcconnect.com/hs-fs/hubfs/EtCetera_319x104.png?width=319&height=104&name=EtCetera_319x104.png "EtCetera_319x104")](https://blog.etcconnect.com) [![ETC Blog](https://blog.etcconnect.com/hs-fs/hubfs/EtCetera_319x104.png?width=319&height=104&name=EtCetera_319x104.png "ETC Blog")](https://blog.etcconnect.com) - [SPOTLIGHT](https://blog.etcconnect.com/tag/spotlight) - [ETC CULTURE](https://blog.etcconnect.com/tag/etc-culture) - [GEAR](https://blog.etcconnect.com/tag/gear) - [LEARN](https://blog.etcconnect.com/tag/learn) - [ODDS & ENDS](https://blog.etcconnect.com/tag/odds-ends) - [BRIGHT IDEAS](https://blog.etcconnect.com/tag/bright-ideas) Search ## [![blog-header](https://blog.etcconnect.com/hs-fs/hubfs/blog-header.png?width=476&height=155&name=blog-header.png "blog-header")](https://www.etcconnect.com) [Follow us on Facebook](https://www.facebook.com/ElectronicTheatreControls) [Follow us on Instagram](https://www.instagram.com/ElectronicTheatreControls) [Follow us on LinkedIn](https://www.linkedin.com/company/electronic-theatre-controls) [Follow us on LinkedIn](https://www.youtube.com/user/ETCVideoLibrary) [✕](https://blog.etcconnect.com/tag/national-electrical-code#gwen-offcanvas-primary) - [SPOTLIGHT](https://blog.etcconnect.com/tag/spotlight) - [ETC CULTURE](https://blog.etcconnect.com/tag/etc-culture) - [GEAR](https://blog.etcconnect.com/tag/gear) - [LEARN](https://blog.etcconnect.com/tag/learn) - [ODDS & ENDS](https://blog.etcconnect.com/tag/odds-ends) - [BRIGHT IDEAS](https://blog.etcconnect.com/tag/bright-ideas) # National Electrical Code [![](https://blog.etcconnect.com/hubfs/Imported_Blog_Media/ColorSource-PAR_silver-750x500.jpg)](https://blog.etcconnect.com/2017/11/what-is-a-directly-controlled-luminaire-and-why-should-i-care) [Lighting fixtures](https://blog.etcconnect.com/tag/lighting-fixtures) ### [What is a Directly Controlled Emergency Luminaire, and why should I care?](https://blog.etcconnect.com/2017/11/what-is-a-directly-controlled-luminaire-and-why-should-i-care) By [Steve Terry](https://blog.etcconnect.com/author/steve-terry) 17-Apr-2023 Recent changes in the 2023 US National Electrical Code and UL standards have significantly changed the rules for emergency lighting in the US. We explore those changes in this blog. [Read More](https://blog.etcconnect.com/2017/11/what-is-a-directly-controlled-luminaire-and-why-should-i-care) [![](https://blog.etcconnect.com/hubfs/Imported_Blog_Media/SC1008_Photo-750x500.jpg)](https://blog.etcconnect.com/2019/10/why-are-fuses-required-with-a-branch-circuit-emergency-lighting-transfer-switch-bcelts) [Switching](https://blog.etcconnect.com/tag/switching) ### [Why are fuses required with a BCELTS?](https://blog.etcconnect.com/2019/10/why-are-fuses-required-with-a-branch-circuit-emergency-lighting-transfer-switch-bcelts) By [Steve Terry](https://blog.etcconnect.com/author/steve-terry) 25-Oct-2019  In North America, emergency transfer switches, including the new Branch Circuit Emergency Lighting Transfer Switch (BCELTS), have tough testing and short circuit current requirements for a reason. Here’s what you need to know about the major difference between [ETC’s SC1008 BCELTS](https://www.etcconnect.com/Products/Power-Controls/Emergency-Lighting-Systems/Branch-Circuit-ELTS/Features.aspx) and other... [Read More](https://blog.etcconnect.com/2019/10/why-are-fuses-required-with-a-branch-circuit-emergency-lighting-transfer-switch-bcelts) [![](https://blog.etcconnect.com/hubfs/Imported_Blog_Media/Distro-2-750x500.png)](https://blog.etcconnect.com/2018/05/electrical-diversity-revisited) [National Electrical Code](https://blog.etcconnect.com/tag/national-electrical-code) ### [Electrical diversity, revisited](https://blog.etcconnect.com/2018/05/electrical-diversity-revisited) By [Steve Terry](https://blog.etcconnect.com/author/steve-terry) 15-May-2018 Electrical diversity is a requirement in most entertainment lighting systems, but one that is often well-hidden from users. This post will explore diversity requirements and what they mean to lighting users. 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