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
Student & Learning Zone - City & Guilds
Cable size calculation ..
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="dempstar" data-source="post: 157561" data-attributes="member: 4213"><p>I take it your load current is 10 as is the 2nd number in your aquation as had a question on my 302 exam a 3kw 230v imersion heater is supplied by 15m of multicore 70 pvc cable clipped direct to the surface Protection is bsen 60898 type c ambient temp is 30 determine load current so 3000 divide 230 is 13.04 then maz allowed volt drop is 230 x 5% is 11.5v, found the minimum cable rating in osg table 6e1. Actual volt drop was worked out at 29x13.04x15 divide by 1000 equaled 5.67v, If that helps you</p></blockquote><p></p>
[QUOTE="dempstar, post: 157561, member: 4213"] I take it your load current is 10 as is the 2nd number in your aquation as had a question on my 302 exam a 3kw 230v imersion heater is supplied by 15m of multicore 70 pvc cable clipped direct to the surface Protection is bsen 60898 type c ambient temp is 30 determine load current so 3000 divide 230 is 13.04 then maz allowed volt drop is 230 x 5% is 11.5v, found the minimum cable rating in osg table 6e1. Actual volt drop was worked out at 29x13.04x15 divide by 1000 equaled 5.67v, If that helps you [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Student & Learning Zone - City & Guilds
Cable size calculation ..
Top