GE T1000, Техническое руководство

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Chapter 9
– Installation
GE Reason Switches
REASON SWITCHES-TM-EN-3 271
6 Preventive Maintenance Actions
In view of the critical nature of application, GE products should be checked at regular
intervals to confirm they are operating correctly. GE products are designed for a life
in excess of 20 years. The devices are self-supervising and so require less
maintenance than earlier designs of protection devices. Most problems will result in
an alarm, indicating that remedial action should be taken. However, some periodic
tests should be carried out to ensure they are functioning correctly and that the
external wirings are intact. It is the responsibility of the customer to define the
interval between maintenance periods. If your organization has a Preventive
Maintenance Policy, the recommended product checks should be included in the
regular program. Maintenance periods depend on many factors, such as:
The operating environment
The Accessibility of the site
The amount of available manpower
The importance of the installation in the power system
The consequences of failure
6.1 Preventive Actions
Switches do not fail very often. However, there is a need for preventive maintenance
of switches. Periodically switches should be checked for smooth and correct
operation, and physical damage. Any problems found should be corrected
immediately.
For optimum performance of a Reason switches, perform preventive maintenance
procedures and actions:

Keep temperature and humidy at adequate levels inside the panel. The
American Society of Heating, Refrigerating, and Air Conditioning Engineers
(ASHRAE) recommends operating network equipment within the following
ranges of temperature and rela
tive humidity (see the ASHRAE TC 9.9 “2011
Thermal Guidelines for Data Processing Environments – Expanded Data
Center Classes and Usage Guidance”):
o
Temperature within 18º C to 27º C (64º F to 80.6º F)
o
Relative humidity less than 60%