Lucent Technologies Victory WP-93936, Руководство по эксплуатации продукта

Страница: 82 / 116

Lucent Technologies Victory Class Batteries WP-93936
8 - 6 Maintenance Issue 1 May 2000
Check and
Record
Reference Cell
Temperature
Perform this procedure semi-annually.
Guidelines The Victory Class Batteries, like all lead-acid cells, are affected by the
temperature of its electrolyte. Observe the following precautions when
working with the Victory Class Batteries:
• The Victory Class Batteries can tolerate extreme temperatures for
short and infrequent periods, but every attempt should be made to
maintain the electrolyte temperature from exceeding 110°F
(43.3°C). Electrolyte temperatures from 77°F (25°C) down to
freezing result in lowered battery capacity. Elevated temperatures
result in decreased battery life.
• Temperatures of cells within the same string should be within 5°F
(2.8°C) of each other. The top row of 3-tier stands is particularly apt
to have higher temperatures than the bottom row. Where necessary,
use fans or other means of ventilation to minimize temperature
variations between cells in the same string.
Temperature
Reference Cell During the installation period, one cell in each tier was selected as the
temperature reference cell for that tier. This cell is used for taking the
temperature measurement.
Procedure
Note
To avoid possible electrolyte contamination, NEVER use mercury
thermometers to take cell temperature readings. Use toluene
thermometers (KS-5499 List 1352, List 1353).
Measuring Reference Cell Temperature
Step Action
1 Insert the thermometer into the reference cell through the vent
funnel.
2 Submerge the bulb of the thermometer completely in the
electrolyte for at least 2 minutes before taking a reading.
3
Record the reference cell temperature.