Computer Accessories User Manual

48 Netra ft 1800 Installation Guide • February 1999
Required Connection Materials
DC branch circuits:
■ The required number of field wiring kits are supplied in the shipkit with each
system, according to configuration.
Grounding:
■ One Thomas & Betts two-hole lug (part number: 54204-UB) suitable for 8 AWG
conductor or UL/CSA approved equivalent having 5/8-inch pitch; torque value:
3.5 Nm maximum.
■ A Thomas & Betts crimping tool (part number: TBM 5-S), or approved equivalent
to secure the lug on to the cable.
■ A grounding bus bar that is near the equipment and easily accessible.
Dual Grounding Environment:
■ Additional Thomas & Betts two-hole lug for logic 0V studs.
Caution – External filtering and/or surge suppression devices may be required on
the power feeds where branch circuit electromagnetic characteristics are unknown.
DC Supply and Ground Conductor
The requirements are:
■ Suitable conductor material: copper only.
■ Supply conductors: 8 AWG (6 mm
2
) (between the Netra ft 1800 and the circuit
breaker).
■ Ground conductor: 8 AWG.
■ Cable insulation rating: minimum 75 degrees Celsius, Low Smoke Fume (LSF),
Flame Retardant.
■ Cable type must be one of:
■ UL style 1028 or other UL 1581 compliant equivalent.
■ IEEE 383 compliant.
■ IEEE 1202-1991 compliant or classified.
■ Branch circuit cable insulation color: per applicable national electrical codes.
■ Grounding cable insulation color: green/yellow.
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