January 2016
Intermediate to advanced
110 pages
3h 30m
English
Content preview from The IEE Wiring Regulations Explained and Illustrated, 2nd Edition
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The
IEE Wiring Regulations
IEE Regulations, Tables 41B1, B2 or D or from manufacturers'
charts. The choice of fuse or MCB type is also important and may
have to be changed if cable sizes or loop impedances are too high.
These details will be discussed later.
Correction factors
When a cable carries its full load current it can become
warm.
This
is no problem unless its temperature rises further due to other
influences, in which case the insulation could be damaged by
overheating. These other influences are: high ambient temper-
ature; cables grouped together closely; uncleared overcurrents;
and contact with thermal insulation.
For each of thes ...
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