Wiring in the premises horyschanyh

Wiring in the premises horyschanyh
In the attic wirings used the following:
- Open:
a) the wires and cables laid in pipesAnd secure wire and cable in the membranes of unburned or vazhkospalennyh materials - at any altitude;

b) protected isolated odnodrotovymy wires on rollers or prisons (in the attic of industrial buildings - only to prisons) - at a height of not less than 2.5 m in height to less than 2 wires, 5 m, they should be protected from contact and mechanical damage;
- Hidden:
a) in walls and ceilings of unburned materials - at any altitude.
Open wiring in the attic should live, individuals poorly enforced wires and cables with copper veins.
Wires and cables with aluminum veins allowed to lay in th-ryschnyh premises for cases:
a) unburned houses with floors - with an open lining of steel pipes in lining or hid them in unburned walls and ceilings;
b) Production facilities for agricultural purposes from the burning floors - in the open laying them in steel tubes with the exception of penetration of dust insidein pipes and zyednuvalnyh boxes;
- That are to be applied threaded connection.
Connection and branch copper or aluminum wire and cable wires in the attic should be in metallic boxes zyednuvalnyh welding, pressure testing, or use clips that correspond to the material cross section and number of cores.
Offshoot of the line laid in horyschanyh premises to elektropryymachiv set out the attic, is allowed provided the construction of lines and branches opened in steel pipes or hidden in unburned walls (ceilings).
Switching devices, in lighting circuits and other elektropryymachiv installed directly in the attic must be installed outside these properties.