Domestic Electrical Installations 49
However, if the location of the point is in between joists, a ‘noggin’ is fixed between to enable the fitting to be fixed securely (Figure 2.35).
Note It is wise at this point in the first-fix process to mark switch wires.
FIGURE 2.35
Fixing to noggin.
The same sort of fixing arrangement applies to KO boxes in stud walling (Figure 2.36).
FIGURE 2.36
Fixing KO box to stud wall.