
The
IEE Wiring Regulations
Design procedure
[IEE Regs 514-09 and 712-01-03 (xviii); IEE Regs
Chapter 3; IEE Regs Appendix 4]
The requirements of IEE Regulations make it clear that circuits
must be designed and the design data made readily available. In
fact this has always been the case with previous editions of the
Regulations, but it has not been so clearly indicated.
How then do we begin to design? Clearly, plunging into calcul-
ations of cable size is of little value unless the type of cable and its
method of installation is known. This in turn will depend on the
installation's environment. At the same time, we would need to
know whethe