Crepe paper or other materials are not to be wrapped around lights. Building light bulbs are not to be painted. Commercially manufactured colored bulbs maybe used if positioned by custodial or maintenance employees. For outdoor lighting, use only lights with special weather proof cords designed for this purpose and that carry the UL label. Lighting sets can wear out or become damaged and should be checked closely before installation for bare wires, worn insulation, broken plugs, loose sockets, etc.
Extension cords are to be used sparingly.
Extension cords over six feet must be close to the length needed and not coiled or draped to prevent pinch points. The extension cord insulation must be heavier than zip cord or lamp cord. Fused power strips are strongly recommended in place of extension cords. Be sure circuits are not overloaded with too many lights. If circuit breakers shut off or fuses are blown, there may be a short or an overloaded circuit.