permanent earth ground, such as a properly grounded receptacle box.

!CAUTION

In all cases, make certain the receptacle is properly grounded. If you are not sure, have a qualified electrician check the receptacle.

Fig. 1

Three-Pronged Plug

 

 

 

 

 

Grounding Prong

 

Properly Grounded

 

Three-Pronged Receptacle

Fig. 2 Grounding Lug

 

Make sure this is

 

 

 

connected to a

 

 

 

known ground.

 

 

 

Two-Pronged

 

Adapter

Receptacle

 

 

7

Page 7
Image 7
Porter-Cable PCB370SS instruction manual