Basic Electrical Installation Work

| Kategorie: Kniha  |

Strana 296 z 399

Jak získat tento dokument?






Poznámky redaktora
3.Electrical installations and wiring systems 285 The method fixing must capable carrying mass not less than 5kg. 14. Safety First Fire ● Mini-spots get hot use ● Cutting hole ceiling may compromise the fire integrity of the room ● Fix spots away from combustible material ● Follow manufacturers’fitting instructions ● Consider installing fire hoods.4 and 559.1, 422. .1). room with two access doors might benefit from two-way switch control (see Fig.4).8, 422. 14.5) that the lights Blue Blue Junction box Two-way switches C Brown Brown Brown Brown Black Grey Grey Black Neutral CPC Line Lamp FIGURE 14.4. One light controlled one switch called one-way switch control (see Fig. Suspended ceilings are considered ‘stable’ firmly fixed and may, therefore, support luminaires.3. A luminaire, that is, light fitting small spot light must fixed an adequate distance from combustible material, recommended the manufacturer, enclosed non-flammable material (Regulations 422. Blue Blue Blue Brown C Brown Brown Brown sleeve One-way switch Junction box Lamp Neutral CPC Line FIGURE 14. The type circuit used will depend upon the installation conditions and the customer’s requirements.5.4 Wiring diagram one-way switch control.5 Wiring diagram two-way switch control