Commercial Building Codes
Power System Relay Protection Codes

Power System Relay Protection Codes

The widely used United Sates standard ANSI/IEEE C37. 2 'Electrical Power System Device Function Numbers, Acronyms, and Contact Designations' deals with protective device function numbering and acronyms. Even in those parts of the world where IEC standards are predominate, the use of ANSI numbering. These numbers are based on a system that is adopted by a standard for automatic switchgear by Institute of Electrical and Electronics Engineers (IEEE), and incorporated in American Standard C37. These types of devices protect electrical systems and components from damage when an unwanted event occurs, such as an electrical. [pdf]

Distance between the optical fiber distribution box and the residential building

Distance between the optical fiber distribution box and the residential building

The conceptually simplest optical distribution network architecture is direct fiber: that is, each fiber leaving the central office goes to exactly one customer. These networks can support tremendous bandwidth, but are expensive because of both the number of individual fibers and the necessary equipment in the central office. Direct fiber is generally favored by new entrants and competitive operators. A benefi. [pdf]

Building Energy Internet Building Project

Building Energy Internet Building Project

The Internet of Things (IoT) has unprecedentedly entangled the physical world with cyber technologies and its integration with building infrastructure (BI) is no different. Integration of IoT can impart BI with up. [pdf]

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