Single point of failure
A single point of failure is a component, path, control, or dependency whose failure can interrupt the service. Identifying these points is essential in both electrical design and commercial due diligence.
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Power Fundamentals
Feeder
A feeder is a circuit that delivers power from a substation or distribution source toward loads. For a data center site, feeder voltage, route, capacity, contingency capability, and upgrade requirements help determine whether service is practical.
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Work letter
Work letter is a lease exhibit defining landlord and tenant construction obligations, specifications, approval process, costs, and schedule. It is especially important when delivery depends on power, cooling, commissioning, and phased capacity.
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FEMA National Risk Index is a dataset comparing natural hazard risk, expected annual loss, social vulnerability, and community resilience. It is useful for screening but should not replace site-specific engineering or insurance diligence.
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