TAVRIDA ELECTRIC Rec15/25 Al1 5p, Руководство пользователя, Страница: 53 / 136

53
Figure 50
Aerial connector with bird protection
Figure 51
Aerial connector with bird protection
Figure 52
Aerial connector with bird protection
4.2.5.2 NEMA2 Connectors
Two-hole NEMA connectors (Figure 53) can be alternatively supplied to perform a reliable connection to
power line of any type of conductors treated correspondingly.
NEMA terminals are preinstalled and tightened on OSM bushings during assembly. The power line
connection can be done using the M12 bolts and nuts (not supplied). It is recommended to use HDG or
stainless steel M12 fasteners and tin-coated cable lugs for power line connection to prevent corrosion.
Figure 53
Two-hole NEMA connector
Tightening torque for power line connection depends on M12 fasteners material used, but not less than 40
Nm.
Surge arresters and auxiliary VT HV terminals connection as alternative can be done directly to NEMA
terminals.
Special two-hole NEMA protective covers can be used to protect line connections against the birds or
aggressive environmental factors (Figure 54).