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Q & A of the Day - Current ratings for bolts

2008-04-09
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Intertek
 

Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This one, concerning current ratings for brass and stainless steel bolts, is answered by Intertek:

Stainless & brass nuts & bolts - but current ratings?
Stainless & brass nuts & bolts - but current ratings?
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Question: Where can we find information regarding the current ratings of brass and stainless steel bolts and set-screws?

Answer: Further to your enquiry, we comment as follows - we are not aware of any published ratings for current carrying ability for bolts and screws. For terminations to electrical equipment it is common for fasteners to ensure the contact between current carrying parts, rather than providing the sole current path. For some equipment, studs may be used as terminals. In such cases, the design should take account of the duties, e.g. steady state and starting, also method of connection (e.g. lug). The design should be proven by type testing, and the manufacturer should specify acceptable means of connection.

We trust this is of some help.

To see many more Q & A in Voltimum UK's Experts Area, please click on the link:

http://www.voltimum.co.uk/consult.php?universe=consult.index.questions

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 Related contacts
Intertek
Intertek House, Cleeve Road
Leatherhead, Surrey KT22 7SB
Tel: +44 (0)1372 370900 / +44 (0)1372 370900
Fax: +44 (0)1372 370943 / +44 (0)1372 370943
Email: Intertek
Intertek House, Cleeve Road
Leatherhead, Surrey KT22 7SB
Tel: +44 (0)1372 3
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Source: Intertek & James Hunt

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