Electrical installations

Abstract

Many may think that the electrical installation required for a temperature controlled storage facility is basically the same as that for most other industrial buildings. Certainly, the wiring and safety aspects have to comply with the same regulations and stores have to be illuminated to the same ambient level. There are, however, important differences. Materials perform differently at −25°C from the way they do at normal temperatures. Certain plastics may crack, standard lights are less efficient, and without care the cold store could freeze the ground on which it is standing and cause foundation problems. Environmental conditions in chill stores can cause humid atmospheres with condensation forming on cold surfaces. Higher than normal protection of components against the effect of condensation is required and some components cannot be electrically employed.