Lucent Technologies Supplemental Battery Stand J85504D-1 List 16
5 - 2 Installation Guidelines and Preparations
Issue 2 September 2000
Environmental
Requirements
•
The environment must comply with the NFPA 70, National Electric
Code Article 110, “Requirements for Electrical Installations” and
Article 480-8, “Battery Locations.”
•
All lead-acid batteries are affected by its ambient temperature.
Lucent Technologies valve regulated batteries can tolerate extreme
temperatures in the range of -40°to 149°F (-40° to 65°C) for short,
infrequent periods. Nevertheless, try to prevent the battery from
being exposed to extreme temperatures. Battery temperatures above
77°F (25°C) decrease battery life while increasing battery capacity.
Battery temperatures lower than 77°F (25°C) have the opposite
effect; batteries may last longer but capacity is decreased. The
product manual for the batteries you have chosen will describe the
life and operating characteristics for the battery you have chosen.
•
Battery temperatures within the same string must be maintained
within 10°F (5.5°C) of each other. When batteries must be installed
where they will be exposed to heat radiation or direct sunlight,
provide shields for the radiators or blinds for the windows to
maintain the allowable temperature gradient. In particular, the top
row of a multi-tiered stand is apt to have a higher environmental
temperature than the bottom. Where necessary, use fans or other
means of ventilation to minimize the temperature variation.
•
The front and rear aisle space around a battery stand should
conform to the requirements of NEC or other applicable codes. A
minimum aisle width of 30 inches is recommended. When no rear
aisle is required, the battery stand may be mounted flush against the
wall. However, it is recommended that a minimum gap of 3 inches
be maintained to allow for proper ventilation and cooling air flow
around the stand.
•
A fully loaded battery stand may impart extreme loads on a
building floor. The safe floor load for the facility where the battery
stand is to be installed should be checked. In addition, the floor
thickness should be checked for the type and size of anchor that
will be used in the application.
Note
Lucent Technologies strongly recommends a temperature
compensation device in high-temperature environments.
Failure to use such a device may result in high battery
temperatures that can cause premature battery failure and
reduce or void the warranty. Lucent Technologies offers two
types of temperature compensation devices: step compensation
and slope compensation.