Solar Modules Grounding - Common Practices
The proper methodology for grounding solar arrays and solar systems is dictated by the National Electric Code (NEC). As an extension of the NEC every equipment manufacturer, specially PV module makers, have their own suggestions for grounding their PV modules. Manufacturer’s suggested grounding practices must always comply with the NEC and UL article 1703.
Night Watchman Automatic Light Switch by Flexcharge – Review
Product: Night Watchman
Description: 12 Volts, 10 Amps Automatic Light Switch
Made by: Flexcharge
Operates: mooring lights, mast lights, boat sign lights, yard lights, deck lights.
PHOTON PV Safety Conference
- Main problem with PV fires in the west coast is roofs primarily made of wood
- Fire officials main concern is to educate fire fighters on how to deal with solar PV systems when the building is on fire so that there are no unreasonable requests against solar PV systems.
- The bypass diodes of shaded PV modules can be one cause of modules catching fire
- 48 volts can be enough to create and arc and initiate a fire
NEC 2011 article 690 solar photovoltaic systems
Here is a draft copy of the NEC 2011 Article 690 - Solar Photovoltaic Systems. Please use it only as a reference.
How to commission a combiner box
Tools: Insulated screw drivers, 600VDC volt meter, electrical gloves.
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