Appendix: Power and Ground Schematics for Philips X-Ray System

When installing the UPS with a Philips X-Ray system, the schematics below must be followed.

The ground impedance connection from the UPS to the protective conductor bar (PCB) plug must not exceed 100 mΩ. Local installers shall apply a release test.

General Requirements

Medical equipment cabling must always be routed separately.
For installation of cables between hospital mains, the UPS, and the X-Ray system, the installer must follow all applicable international and local regulations.
Equipotential connections between equipment must be short and wide.
Carefully identify and recognize the protective earth and the equipotential earth.
The green and yellow colors are specified for protective conductors. However, no colors are specified for equipotential bonding conductors.
Use equipotential metallic cable trays in relation to the main equipotential bonding (reduces radiation from the electrical power cables). If you use only one cable tray for all cables, the cables must be separated correctly from each other.

Recommended Cable Placement in Metallic Cable Trays

NOTE: The metal wireway shall be bonded to building steel. If direct galvanic bonding to building steel is not possible or impractical, then bonding to building steel shall be realized via an appropriately sized insulated ground wire, no thinner than 6 AWG, to the equipotential conductor bar (ECB) terminal block of the equipotential reference bar (ERB).