IEEE 1106:2015 pdf free download – IEEE Recommended Practice for lnstallation, Maintenance, Testing, and Replacement of Vented Nickel- Cadmium Batteries for Stationary Applications
5.2 Location
The following criteria should be observed regarding location:
a) Space and floor supports allocated for the battery and associated equipment should allow for present and future needs.Calculations should be performed to ensure that floorloading capabilities are not exceeded.
b) The general battery area selected should be clean, dry, and ventilated and should provideadequate space and illumination for inspection,maintenance,testing, and cellreplacement. Space should also be provided above the cells to allow for operation of liftingequipment, addition of water，and taking of measurements (e.g., voltages,temperature,etc.).
c) The battery should be protected against natural phenomena such as earthquakes,winds,and flooding, as well as induced phenomena such as fire, explosion, missiles, pipe whips,discharging fluids, cO2 discharge, and other hazards.
d) The optimum range for cell electrolyte temperature is 20 °C to 25 °℃, and it is the basis forrated performance. A location where this temperature can be maintained will contribute tooptimum battery life,performance,and cost of operation. Although nickel-cadmiumbatteries are tolerant of extreme temperatures,low temperatures will decrease batterycapacity，whereas prolonged high temperatures will shorten battery life (see A.4).Installation in a location with an ambient temperature below the optimum operatingtemperature will affect sizing. Refer to IEEE Std 1115TM, 5
e) The location and arrangement of cells should result in no greater than a 5 °C temperaturedifferential between cells at a given time. Avoid conditions that result in spot heating orcooling, as temperature variation will cause the battery to become electrically unbalanced.
5.4 Seismic
Where applicable building codes require seismic protection，the racks,cabinets，anchors,andinstallation thereof shall be able to withstand the calculated seismic forces. For utility substations,IEEE Std 693TM-1997[B4] 2005[B3] provides guidance for seismic installation design and seismicqualification of battery racks. To minimize the effect of seismic forces, the battery should be locatedat as low an elevation as practical. The following criteria should be observed regarding mounting:
a) All cells should be restrained. Using side and end rails is one method that can be used to prevent loss of function due to a seismic event.
b) Where more than one rack section is used, the rack sections should be rigidly joined, or theadjacent end cells in each rack should be connected with flexible connectors as providedby or recommended by the manufacturer.Connections between cells at different levels ofthe same rack should also be flexible.
c) Racks shall be firmly connected to the building structure in accordance with applicablecodes by using approved fastening techniques such as embedded anchor bolts or rackswelded to structural steel faceplates (sized to accommodate a range of battery rack sizes).
6.3.2 Cell mounting placement and connections
The following sequence should be used:
a)lf cells are supplied unfilled, they should be filled in accordance with the manufacturer’s recommendations before mounting on the rack placement.
b)Lift the individual cells onto the rack Following the procedures outlined in 6.2.2, step a),Mount place the cells in accordance with the battery manufacturer’s recommendations. Donot apply lubricant on rack rails unless approved by the manufacturer. In certainapplications, multicell blocks are installed on shelves or in cabinets in which there is notenough head space above the batteries to allow for series connections to be made. In suchcases, it is necessary to make inter-unit connections [see step g) in this subclause] beforesliding the blocks into position.