08%
Table 2.5 mm
(a) Various profiles with cross-section 290 mm² and minimum
thickness are permitted, e.29: Materials, forms and cross-sections earthers according IEC 62561-2
TBS
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Chapter The external lightning protection system
.The minimum cross-sections,
shape and material depend the
client’s application.99% copper content
(d) With least copper support with 99.99% copper content
(e) Chromium 16%; nickel 5%; molybdenum 2%; carbon 0.7.
2.g.5 mm
Round, solid mm
Pipe mm
Solid sheet 500 500 mm
Grid mesh 600 600 mm
Hot galvanised steel
Round, solid mm
Round, solid mm
Pipe mm
Strip, solid mm
Solid sheet 500 500 mm
Grid mesh 600 600 mm
Profile (a) 290 mm²
Bright steel (b)
Cable mm²
Round, solid mm
Strip, solid mm
Copper-coated steel
Round, solid (c) mm
Round, solid (c) mm
Round, solid (d) mm
Strip, solid mm
Rustproof steel (e)
Round, solid mm
Round, solid mm
Strip, solid 3. cross profiles
(b) Must embedded concrete depth least mm
(c) With least 250 copper support with 99.2 Materials for earthing systems
Material Form
Minimum dimensions
Earth rod Earth conductor Earth plates
Copper Tin plated copper
Cable mm²
Round, solid mm
Strip, solid 2
