Page 94 of 456 Installing DC powerNN43021-310 Standard 02.01 December 2007Note: The procedures in this chapter apply to the global powerdistribution unit (PDU). Throughout this document, the global PDU isreferred to as the NT4N49AA PDU.To install reserve power equipment (batteries), follow the instructionsprovided with the equipment. To comply with safety requirements, consultthe following before working with any battery systems.• Read the “Material Safety Data Sheet” that must be posted to meetOccupational Safety and Health Administration (OSHA) requirements.This article outlines appropriate reserve battery handling procedures.• Refer to National Electric Code 645-10. This article outlinesrequirements that call for the installation of AC- and DC-power killswitches to battery systems in certain environments.As a safety precaution, all DC service panels should be located in an area thatis easily accessible at all times to allow for emergency shutdown. An optimallocation would be near, or just outside, the entry to the room containing theDC power system for the Large System. Each circuit breaker within a panelshould be clearly marked to identify the system component or components itservices.Candeo DC power systemsThe Candeo platform provides a simple, quick to deploy, and easy to operatepower solution. Based upon modular building blocks (rectifiers, SystemManager, DC distribution, and battery connection modules), the system isdesigned to power –48 V DC applications. The Candeo platform can beexpanded by adding rectifiers, battery connection modules, frames, anddistribution modules.There are two types of Candeo systems:• Large Candeo (MP481200), which uses 50 A rectifiers and has acapacity of 1000 A.• Small Candeo (SP48300), which uses 30 A rectifiers and has a capacityof 300 A.
