Discuss Structural steel bonding clamps in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

Hello All,

I am working on a kitchen extension which has 3 Universal Beams bolted together which sit on block-work. There is no direct connection to earth. However when tested it has a path to MET of 2kOhm.

As a result I plan to bond this steelwork.

The design of the room means these beams will be exposed. Getting a Furse1 style clamp on the beam will be pretty clunky. One of the bolted connections will be hidden so I am currently planning on getting a Earth Tag onto the end of the M22 bolt.
Is there any product that isn't an M25 or M20 style earth tag available? Or is my plan to use a 25mm SWA earth tag sandwiched between two M22 washers a reasonable solution?
I could perhaps get a BS951 clamp on the thread of the bolt but the surface area of the thread might not be a great contact.

I'm not too keen to drill a hole in the steel for a smaller connection.

The structural steel is also getting a thick coating of a Fire Retardant paint inline with Part B.

Any thoughts?

Ant

1 https://www.electrika.com/catalogue...S350/-METALWORK-BD-FOR-8MM-COPPER/part/127596
 
TL;DR
Will an Earth tag be suitable to Earth a structural steel bolt.

Ian1981

-
Mentor
Arms
Esteemed
You must be logged in to see the message.
 
You must be logged in to see the message.
 
You must be logged in to see the message.
 
You must be logged in to see the message.
 

davesparks

-
Mentor
Arms
Esteemed
You must be logged in to see the message.
 
CK Tools :) The professionals choice when it comes to Electrical Tools
This official sponsor may provide discounts for members

Reply to Structural steel bonding clamps in the Electrical Forum area at ElectriciansForums.net

CK Tools :) The professionals choice when it comes to Electrical Tools
This official sponsor may provide discounts for members
Top Bottom