Max Zs figure for.......

[kme]

A BS88 gG fuse. 5 second disconnection (submain). 315A fuse.

The BRB only goes up to 200A :slap

Does anyone know? Methinks approx 0.12 ohms - discuss?

Thank you.

KME

 

[johninlondon1]

I would of thought that you would need to be sourced from the manufacturer, otherwise I think it is 230v/315*7 = 0.104 ohms, Don't quote me but assuming its a breaking current of 7 times the current for a BS 88.

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found this

Subcategory - 1. Breakers & Fuses

What is he maximum Zs of a 315A mem Fuse in a glasgow switch

Hi, For 5s disconnection: 0.14 ohms for 0.4s disconnection: 0.075 ohms Regards Tariq

Subcategory - 1. Breakers & Fuses - Voltimum UK - Electrical Installation Products and Contracting