Emerson SolaHD SPD200K Series, Руководство пользователя

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SPD200K/300K
Terminals, Wire Size and Installation Torque
Terminals are provided for phase (line), neutral, and equipment ground connections.
Table 2: Terminal Torque
Connection Torque
Power Connection Torque
AØ, BØ, CØ, N and Ground 40–50 lb-in. ( 4.5–5.6 N•m)
Wire Size: 8 AWG to 1/0 AWG Copper
Location of Surge Protective Device (SPD)
Locate the SPD as close as possible to the circuit being addressed to minimize the wire length and optimize
SPD performance. Avoid long wire runs so that the device will perform as intended. To reduce wire impedance
from surge currents, the phase, neutral, and ground conductors must be routed within the same conduit and
tightly bundled or twisted together to optimize device performance. Avoid sharp bends in the conductors. See
Figure 3.
Figure 3: Surge Protective Device Wiring Practice
To load(s)
Phases
Neutral
Ground
Ground bus
Neutral bus
SPD
Phase A
Phase B
Phase C
Neutral
Ground
Panel
Interconnect wiring
– Minimize length
– Avoid sharp bends
Grounding
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Connect the Surge Protective Device ground terminal to the building grounding grid structure.
• Use an appropriately sized equipment grounding conductor.
• Do not use isolated bushings to interrupt the metallic raceway or conduit.
• Maintain electrical continuity at all raceway and conduit connections using appropriate bonding devices.
• Do not use a separate isolated ground for this Surge Protective Device.
• Verify proper equipment connection to the grounding system.
• Verify ground grid continuity by performing regularly scheduled inspections and testing as part of a
comprehensive electrical maintenance program.
Failure to follow these instructions will result in death or serious injury.