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Type 1 SPD

lyledunn


Located at intake and is Type 1. Has a Up of 1.5KV so can one assume it covers all categories set out in Table 443.2? 

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    Hi Lyledunn. If The Up value is in accordance with the required withstand voltage of the equipment in the installation at that location then I would say it does. But only equipment at that location.It cannot eliminate the residual overvoltages that may affect the downstream equipment. Therefore, additional SPDs of Type 2 and/or Type 3 are required to remove the overvoltages downstream and provide a higher level of protection for the sensitive loads.

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    Hi Lyledunn. If The Up value is in accordance with the required withstand voltage of the equipment in the installation at that location then I would say it does. But only equipment at that location.It cannot eliminate the residual overvoltages that may affect the downstream equipment. Therefore, additional SPDs of Type 2 and/or Type 3 are required to remove the overvoltages downstream and provide a higher level of protection for the sensitive loads.

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