terminology


Postby sparx » Sat Nov 14, 2009 9:24 pm

For the benefit of all posters & some responders, to reduce errors.
Circuits are either;
RADIALS = single cable from Consumer unit not returning, or
RING CIRCUITS (NOT ring MAIN)=starting and finishing at consumer unit.

[A ring MAIN is a HIGH VOLTAGE distribution system going between substations].

Fused spur =old name for Fused Connection Unit.
RCD (Residual Current Device)=old Earth Leakage Circuit Breaker.
MCB(Miniature Circuit Breaker)= overload device in place of old fuses.
RCBO (Residual Current Breaker plus Overload).= combined RCD+MCB.
Diversity=not all load on at same time eg cookers.
Competant person = one having sufficient technical knowledge, practical skills & experience for the nature of the electrical work undertaken so as to prevent danger to himself & others. ( a long one but from IET regs.
& from Electricity at work act -law).

Many more definitions but these seem to be misunderstood most.
regards All,
SPARX
sparx
Rank: Project Manager
Posts: 2166
Joined: Wed Mar 21, 2007 8:33 pm
Location: The fifth continent.

Sponsor

Simply Build It


  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!