The Royal Netherlands Standardization Institute (NEN) warns Dutch shoppers concerning the risks of improperly putting in PV on the balcony.
NEN warns Dutch shoppers about deploying PV methods on the balcony with out taking precautions to keep away from the dangers related to these options your self.
“Incorrect set up or connection can result in harmful conditions,” the authority stated in a press release. “Solar panels can blow or sink by the roof, whereas improper connections may cause fires. “
Regarding the air and load-bearing capability of the modules, NEN stated that the methods should be correctly weighted, even with paving stones or plastic containers stuffed with water. The required weight varies relying on many elements, and set up manuals usually lack enough particulars.
The authority says that this calculation should adjust to the Dutch commonplace NEN 7250, which stipulates the usage of photo voltaic vitality methods or constructing parts with photovoltaic or thermal methods as built-in or stand-alone elements of the exterior construction of a constructing .
“In containers that must be stuffed with water, there’s a danger that the water will disappear over time resulting from evaporation or leakage, for instance if the containers are frozen, which makes the set very gentle,” explains NEN. “Adding numerous weight to ensure the photo voltaic panels do not blow is just not a good suggestion both. If the system turns into too heavy, it might sink into the roof. “
NEN warns that even when a roof can assist a system, snow or heavy rain can nonetheless result in collapse, as a result of mixed weight of the panels and amassed water or snow. It added that PV methods on the balcony should be linked to the load of a home in compliance with the NEN 1010 commonplace, which governs the set up, growth, and adaptation of low-voltage methods.
“Balcony PV methods should be linked to the isolation of the ultimate circuits, in order that the safety in opposition to overcurrent stays efficient in all circumstances,” the authority stated. “It is just not allowed to attach an inverter with photo voltaic panels to any socket. For the connection of photo voltaic panels, it’s needed to make use of a socket that’s linked to its personal remaining circuit and nothing else might be linked in that socket.”
NEN stated that if a washer or tumble dryer has the identical circuit because the photo voltaic panels, the surplus present may overheat the cables, which may result in a hearth.
It additionally famous that set up manuals usually lacked readability on tips on how to correctly join the photo voltaic panels to the inverter. “Some manuals and tutorial movies comprise errors,” it stated. “An incorrect connection may cause a hearth, for instance if the plugs don’t click on correctly.”
The authority additionally warned that some person manuals counsel connecting a number of units by extension cords, which may trigger overload and hearth. “These dangers usually are not or are under-discussed,” says NEN.
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