Page 38 - GuardII+ Series 4208 Platform PD User Manual
P. 38

Installation




                                    Note:
                                    GuardII+ makes use of fasteners that are intended to be operated by hand;
                                    only use hand tools for thumb screws and other  hand-fasteners.  Over
                                     tightening will cause damage to the monitor.

                        •  All cable entries into the box should be located as specified in the GuardII+ Series
                            4208 Platform User Manual.
                        •  Signal and communications cables shall run along grounded metal surfaces like metal
                            conduits, metal trunking or ducts, preferably away from power cables.  They should
                            not run on open trays alongside power cables.

                        •  The conduits shall be installed with insulated fixings as required to ensure grounding
                            only at one end.  For conduit sizes follow the local electric codes.

                        •  Shielded cables should have the shield grounded only at one end of cable segments
                            to avoid circulating currents through the shield.

              5.2.  Sensor Termination Boxes

                        PD  sensors  for  a  GuardII+  require  a  separate  sensor  termination  box.    Refer  to  the
                     appropriate sensor Installation guides for instructions to install the sensors and termination
                     box.

              5.3.  Mounting Location

                        Excessive coaxial cable lengths distort and attenuate PD pulses.  The standard GuardII+
                     PD  installation  kit  includes  3  m  (10’)  coaxial  cables  for  connecting  the  monitor  to  the
                     termination box, and the total cable length from the sensors to the monitor should be less than
                     30 m (100’).  If the coaxial cable lengths required appear to be unavoidably long, please
                     contact Iris Power LP for consultation or possible alternatives.

















                                         Figure 5-1 GuardII+ PD Installation Location

                                    Note:
                                    Different  GuardII+  monitoring  technologies  have  different  installation
                                    location requirements.  When deciding on the installation location for the
                                     monitor, be sure to consider all the installed monitoring technologies.





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