ESAB Powercut 900, Инструкция по эксплуатации, Страница: 47 / 72

47
SECTION 3 INSTALLATION
Before connecting to input power, make sure there is a line (wall) disconnect switch with fuses or circuit break-
ers at the main power panel. You may either use the factory-installed input power cable (4/c, type SO (90 °C),
8 ft (2.4 m) length) or provide your own input power leads. If you choose to provide your own, make sure they
are insulated copper conductors. You must have two (single-phase) or three (three-phase) power leads and one
ground wire. The wires may be heavy rubber covered cable or may be run in a solid or flexible conduit. Ensure
the ground lead is sufficiently long inside the machine. In an event where the power cord is pulled from the ma-
chine, the ground lead
must not
break from the ground connection before the power leads have broken from
their connection. Refer to Table 3-2 for recommended input conductors and line fuse sizes.
BEfOrE MAKINg ANY CONNECTIONS TO THE pOWEr SOUrCE OUT-
pUT TErMINALS, MAKE SUrE THAT ALL prIMArY INpUT pOWEr TO
THE pOWEr SOUrCE IS DEENErgIZED (Off) AT THE MAIN DISCON-
NECT SWITCH AND THAT THE INpUT pOWEr CABLE IS UNpLUggED.
THE CHASSIS MUST BE CONNECTED TO AN ApprOVED ELECTrICAL
grOUND. fAILUrE TO DO SO MAY rESULT IN ELECTrICAL SHOCK, SE-
VErE BUrNS Or DEATH.
WArNINg
WArNINg
WArNINg
Table 3-1. (powercut 900)
recommended Sizes for Input Conductors and Line fuses
ELECTrIC SHOCK CAN KILL! BEfOrE MAKINg ELECTrICAL INpUT CON-
NECTIONS TO THE pOWEr SOUrCE, "MACHINErY LOCKOUT prO-
CEDUrES" SHOULD BE EMpLOYED. If THE CONNECTIONS ArE TO BE
MADE frOM A LINE DISCONNECT SWITCH, pLACE THE SWITCH IN THE
Off pOSITION AND pADLOCK IT TO prEVENT INADVErTENT TrIppINg.
If THE CONNECTION IS MADE frOM A fUSEBOx, rEMOVE THE COrrE-
SpONDINg fUSES AND pADLOCK THE BOx COVEr. If IT IS NOT pOSSI-
BLE TO USE pADLOCKS, ATTACH A rED TAg TO THE LINE DISCONNECT
SWITCH (Or fUSE BOx) WArNINg OTHErS THAT THE CIrCUIT IS BEINg
WOrKED ON.
powerCut 900
Input requirements Input & gnd
Conductors
Line
fuse
Volts phase Amps Cu / Awg Amps
208 1 56 6 75
208 3 28 6 35
230 1 47 6 60
230 3 23 6 30
230(CE) 3 23 6 mm
2
30
400 3 14 10 20
380(CE) 3 15 6 mm
2
20
400(CE) 3 14 6 mm
2
20
460 3 12 10 20
575 3 9 10 15