Dell EMC PowerEdge R740xd, Инструкция по установке и обслуживанию, Страница: 197 / 215

Kit contents
• Dell part number 6RYJ9 terminal block or equivalent (1)
• #6-32 nut equipped with lock washer (1)
Required tools
Wire-stripper pliers capable of removing insulation from size 10 AWG solid or stranded, insulated copper wire.
NOTE: Use alpha wire part number 3080 or equivalent (65/30 stranding).
Required wires
• One UL 10 AWG, 2 m maximum (stranded) black wire [–(48–60) V DC].
• One UL 10 AWG, 2 m maximum (stranded) red wire (V DC return).
• One UL 10 AWG, 2 m maximum, green with a yellow stripe, stranded wire (safety ground).
Assembling and connecting safety ground wire
Prerequisites
NOTE: For equipment using –(48–60) V DC power supply units (PSUs), a qualified electrician must perform all
connections to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself.
All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with the
product.
Steps
1. Strip the insulation from the end of the green or yellow wire, exposing approximately 4.5 mm (0.175 inches) of copper wire.
2. Using a hand-crimping tool (Tyco Electronics, 58433-3 or equivalent), crimp the ring-tongue terminal (Jeeson Terminals Inc., R5-4SA
or equivalent) to the green and yellow wire (safety ground wire).
3. Connect the safety ground wire to the grounding post on the back of the system by using a number 6-32 nut that is equipped with a
locking washer.
Figure 161. Assembling and connecting the safety ground wire
1. #6-32 nut 2. spring washer
3. grounding post 4. safety ground wire
Installing and removing system components 197