CAN/CSA C22.2 NO. 745-2-12-95(R1999)

1. ScopeThis clause of Part 1 is applicable except as follows:1.1Replacement:This standard applies to concrete vibrators, the active part ( vibrator bottle) of which is intended to be immersed into the mass of concrete to be vibrated.They may be of one of the following designs:- the motor and the vibrating mechanism are inside the vibrator bottle to which the part containing the mains switch is connected by means of a long flexible hose containing the interconnecting wires;- the motor and the vibrating mechanism are inside the vibrator bottle to which a handle comprising the part containing the mains switch is fixed by means of a short rigid tube, these parts forming a constructional unit;- the vibrator mechanism only is inside the vibrator bottle to which a separate portable unit comprising the motor and the part containing the mains switch is connected by means of a long flexible hose containing a flexible shaft.Stationary concrete vibrators intended to vibrate concrete moulds, for example for prefabricated concrete elements, are not within the scope of this standard.