Most modern grid-connected solar inverters have a built-in DC switch, isolating the solar strings. However, there is a debate among electricians on whether an external DC isolator is still necessary. In this article, we will explore the relevant standards, codes of practice, and the latest guidance from the insurance industry to help you make an informed decision.
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Further Reading
IET Code of Practice for Solar Photovoltaic Installations – 2nd Edition
http://hub.efixx.co.uk/IET-COP_PV
MCS Solar installation Standard V5.0
http://hub.efixx.co.uk/MCS-Solar-V5
RC62 Recommendations for fire safety with PV panel installations
http://hub.efixx.co.uk/RC62
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00:00 DC Isolators and solar panel installations
00:34 What does BS7671 say in section 712?
01:25 IET Code of Practice
02:06 Typical inverter – Sunsynk Hybrid Inverter
02:42 Can you rely on the built-in isolator?
03:13 Are minimum requirements enough?
03:24 RC62 – What does the insurance industry think?
04:02 Fire risks in solar installations
04:46 What do you think?
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#solarinverter #isolators #solarpanelinstallation
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