November 2004
Beginner
368 pages
19h 44m
English
Content preview from The Circuit Designer's Companion, 2nd Edition
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294 The Circuit Designer’s Companion
Class I: Equipment is designed to be earthed. Protection is afforded by basic
insulation, but failure of this insulation is guarded against by bonding
all accessible conductive parts to the protective earth conductor. It
depends for its safety on a satisfactory earth conductive path being
maintained for the life of the equipment.
Class II: The equipment has no provision for protective earthing and protection
is instead provided by additional insulation measures, such as double
or reinforced insulation. Double insulation is functional insulation,
plus a supplementary layer of insulation to provide protection if the ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.