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SPD Supply Cables

Elliot0114

Hi, when selecting cables to run to an SPD from a busbar should they be rated to the upstream protective device?

I'm just looking at a design for a 315A DNO with limited space and it seems overkill to install 95mm Tri-Rated cables to the SPD protective device as it will need lugs to terminate the cables into it, especially when space is at a premium.

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    Does the SPD manufacturer not specify the rating of the protective device?

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    Does the SPD manufacturer not specify the rating of the protective device?

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