Forex trading
scaffolding
Scaffolding set the lightning protection to note
Here scaffolding set up lightning protection should also note the following:
First, the grounding device before setting the limits under the grounding resistance, soil moisture and conductivity characteristics of the design, selection and location of grounding, and grounding wire grounding and layout, material selection, connection, production and installation requirements be specified. After the installation of sheet resistance measurement to use for compliance.
Second, the grounding line position should be selected not easy to come to the local people in order to avoid hazards and reduce the step voltage to prevent the ground suffered mechanical damage, grounding and other metals or cables should be maintained between the distance of 3 meters or more.
Third, the use of grounding devices in 6 months or more, should not be used in the ground as bare aluminum grounding wire or grounding wire. In a strong corrosive soil, use galvanized or copper grounding pole.
Fourth, in case of lightning strikes during construction, the steel scaffolding on the operator should be immediately evacuated.
Jan. 17 more knowledge of scaffolding and aluminum beam description, please visit this site and the scaffolding bbs to the website: http://www.iscaffold.com.cn 24 hour customer service phone!
link:>> Christian Louboutin Shoes sale | waterproof connectors
