Site Preparation Guide, Eighth Edition - Superdome HP 9000 Systems

Chapter 2
Electrical and Environmental Guidelines
Electrical Factors
43
Wiring connections must be properly torqued. Many equipment manufacturers specify the proper connection
torque values for their hardware.
Ground connections must only be made on a conductive, nonpainted surface. Lockwashers must be used on all
connections to prevent connection hardware from working loose.
Data Communications Cables
Power transformers and heavy foot traffic create high energy fields. Route data communications cables away
from these areas. Use shielded data communications cables that meet approved industry standards to reduce
the effects of external fields. Data cables that are run externally to a metal fire enclosure must have a
minimum fire rating of VW-1 or VW-4 or better.