Nokia NBB5005000 Installation Guide - Page 19
Electrical Grounding, Protection Against Lightning, of the device and in the product documentation.
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Preparing the Installation Environment For installations in North America, use a 120 VAC, 20A fuse circuit breaker for the circuit branch. For installations outside North America that use 230 VAC, use a 230 VAC, 2A fuse circuit breaker. Use the gateway device within the electrical ratings indicated on the back of the device and in the product documentation. Follow the requirements of all building and electrical codes before, during, and after installation of the gateway. Warning The gateway requires protection against short-circuits (overcurrent). Always use overcurrent protection on all conductors of electrical current to which the gateway is connected. Electrical Grounding The gateway must always be connected using a grounding-type plug. Warning Make sure that the facility where the gateway is installed has proper electrical grounding and is connected to that ground at all times during operation. Protection Against Lightning Warning Do not work on the gateway during an electrical storm. Do not connect or disconnect any wires, including network or power connections. Whenever the threat of lightning danger exists, avoid touching the gateway. This precaution is sensible for any electrical device during periods of lightning activity. Nokia 5i and 10i Installation Guide 19
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