Cable may be laid indoor, outdoor, for fixed installations on wall and on metallic structures. Direct burial in soil is allowed, as long as the relevant national rules of installations are followed. Halogen free cable are recommended when it is important to avoid thick smoke and corrosive gases, in case of fire or overheating.
SFS 5546, SS 424 14 18, HD 604 S1 5I and IEC 60502-1 Applicable parts
1,5 … 6 mm² circular solid copper, IEC 60228 class 1
10 … 25 mm² circular stranded copper, IEC 60228 class 2
35 … 300 mm² sector shaped, stranded copper, IEC 60228 class 2
2-core: blue, brown
3-core: brown, black, grey
4-core: Blue, brown, black, grey