- Regulations for the Design and Construction of Electrical Installations
- Правила устройства электроустановок / ПУЭ
English-Russian oil and gas mini dictionary. 2014.
English-Russian oil and gas mini dictionary. 2014.
Electrical conduit — risers, seen inside fire resistance rated shaft, as seen entering bottom of a firestop. The firestop is made of firestop mortar on top, rockwool on the bottom. Raceways are used to protect cables from damage … Wikipedia
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