Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Electrician Talk Forum
Bonding clips in the approved position
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="binky" data-source="post: 453474" data-attributes="member: 490"><p>When supply pipes were all metal then bonding and cross-bonding was there to 'faraday cage' the system - it was supposed to prevent touch voltages exceeding 50V I seem to remember reading many years ago. The metal supply pipes effectively act as very good earth rods so offer an alternative earth path for fault currents. However as most pipework supplies are now plastic, and most internal pipework is also plastic apart from gas, and even gas is generally hidden within the fabric of the building, I don't see any need to bond these days, even if there is a short length of metal pipe entering the building from a meter cupboard externally. I tend to bond even if there is plastic supply pipes just to keep others happy, but to me, the chance of being in contact with this bit of pipe whilst there is a fault current flowing is minimal at best.</p></blockquote><p></p>
[QUOTE="binky, post: 453474, member: 490"] When supply pipes were all metal then bonding and cross-bonding was there to 'faraday cage' the system - it was supposed to prevent touch voltages exceeding 50V I seem to remember reading many years ago. The metal supply pipes effectively act as very good earth rods so offer an alternative earth path for fault currents. However as most pipework supplies are now plastic, and most internal pipework is also plastic apart from gas, and even gas is generally hidden within the fabric of the building, I don't see any need to bond these days, even if there is a short length of metal pipe entering the building from a meter cupboard externally. I tend to bond even if there is plastic supply pipes just to keep others happy, but to me, the chance of being in contact with this bit of pipe whilst there is a fault current flowing is minimal at best. [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Electrician Talk Forum
Bonding clips in the approved position
Top