Usage With Enclosed Electrical/Electronic Equipment

DOE-HDBK-1092-98

9.10.1 USAGE WITH ENCLOSED ELECTRICAL/ELECTRONIC EQUIPMENT

In certain locations cable supports and/or enclosures are installed for dedicated usage with enclosed

electrical/electronic equipment. For these situations it is acceptable for these cable/utility management

systems to be utilized for the required purposes of the equipment. This may include a bundle of

cables, hoses, and tubing that is required to be run from the equipment console to the unit under test.

In these situations the use of a cable/utility management system is considered to be a part of custom-

made equipment consisting of enclosed electrical/electronic equipment, cabling, cable/utility

management system, and unit under test with associated equipment (See Figure 9-6).

In cable/utility management systems where cables other than those of the equipment exist, the

decision should be documented that any risk posed by the situation is acceptable for the operation

to be performed and to the functions of the existing cables.

9.10.2 REQUIREMENTS

An assessment of any hazards identified with the equipment and the operation with which it is

involved should be performed to assure safe operation of components in the cable/utility management

system. Where any cable/utility runs include hazardous fluids or pressurized gases, the utilization

of these utilities with the cables involved must be determined to be safe.

Metallic cable/utility management systems that support electrical conductors shall be grounded or

bonded to the equipment. Where cable/utility management systems are installed exclusively for

electrical/electronic equipment usage and where these trays are metallic and not grounded or bonded,

approved documentation shall exist stating the reason for not grounding or bonding the system (See

Section 9.3.1).

Equipment cable/utility runs installed in cable/utility management systems should be visually

inspected. These inspections should be performed at the time of installation and any interval

specified in the equipment documentation. Any inspection should, as a minimum, consist of:

1. A visual check for the integrity of cable jackets and visible shields;

2. A check for the integrity of all utility hoses by looking and listening for leaks;

3. A visual check on all securing devices used to hold the bundle on the tray to assure the bundle

is positioned properly and no damage has occurred;

4. A visual inspection on all bends for signs of pinching, cutting, exceeding minimum cable bending

radius, or other damage; and

5. Documentation of all results of any inspection.

Supports shall be provided to prevent stress and physical damage to cables where they enter or exit

cable/utility management systems.

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