Swedish authorities have acknowledged {the electrical} and hearth hazards brought on by improper deployment of plug-in photo voltaic modules.
The Swedish Electrical Security Authority (Elsäkerhetsverket) has issued a warning in regards to the dangers posed by plug-in photo voltaic modules, which are sometimes used on balconies. Stated Electrical energy and hearth are the principle dangers related to a defective plug-in panel.
“For these merchandise, there are numerous conditions that may trigger these dangers,” mentioned Elsäkerhetsverket spokesperson Mikael Carlson. pv journal. “The laws state {that a} fault can not result in an electrical shock or hearth. As a result of these merchandise use plugs with accessible pins, this isn’t completed.
The Swedish Electrical Security Authority mentioned that the pins of the plugs could be harmful even when they don’t seem to be within the sockets.
“There’s additionally a threat of being electrocuted by the electricians who’re doing {the electrical} set up work within the constructing, not understanding that there are native PV-generators linked to the system that could be defective,” mentioned Carlson. “If there are native mills which are mistakenly feeding disconnected networks, there’s a threat of electrocution to technicians throughout work.
Elsäkerhetsverket mentioned that plug-in panels can catch hearth as a result of their present might exceed {the electrical} design of the programs.
“It’s doable to devour extra energy than {the electrical} wires measured if the fuse for the feed-in outlet additionally provides one other outlet, which can lead to fires,” mentioned Carlson. “If many flats join these merchandise and so they all find yourself in the identical section, it will probably additionally trigger issues within the constructing’s electrical system, akin to fires.”
Elsäkerhetsverket tells residence homeowners to depend on skilled installers for PV system dimensioning.
“The usual SS 43640400 doesn’t enable for plug-in options, so the product should be completely linked to {the electrical} system of the property,” mentioned Carlson. “The affected elements of {the electrical} system should be measured for this modification and the warning indicators ought to be utilized within the applicable areas of the constructing.”
He mentioned this is the accountability of producers to be effectively knowledgeable about regulatory frameworks and compliance with authorized necessities.
“The ‘Blue Information’ from the European Fee is an effective start line and relevant requirements could be ordered from SEK Svensk Elstandard,” says Carlson.
The Swedish Electrical Security Authority mentioned there may be different authorized necessities, akin to constructing permits or requests from native emergency providers, that should be taken into consideration when putting in photo voltaic panels on balconies.
“The set up may additionally require pre-approval from the proprietor of the grid, and the electrical energy meter should be modified in order that any feed to the grid could be measured,” concluded Carlson.
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