Before Romex wire became available, cloth-covered wire, knob-and-tube wiring, and armored cable (BX) were commonly used for electrical wiring in residential buildings.
No, silver was never used in BX cable.
It used to be, but now the ground wire (which replaced the aluminum strip) in the BX cable is used. The ground wire is now used to complete the grounding of connected devices rather that the sheath of the BX.
A BX connector is a special type of box connector used for securing a BX cable to a junction box. BX is a type of armoured cable that is used for specific locations where ordinary Romex cable could become damaged. Before the connector is installed onto the BX cable there is a small PVC collar to be installed. In the trade it is called an anti short. It slides between the outer sheath of the BX and the conductors inside the sheath. It adds protection for the inner conductors from rubbing against the outer sheath if any vibration is involved in the installation. There is usually a small hole in the BX connector and the red anti short can be seen through this hole. This makes it easy for the electrical inspector to see if the anti short bushing has been installed during an inspection, and they do check.
No, you cannot run a BX cable with only two wires to power your table saw safely. The green wire is for grounding, which is crucial for safety. In this case, you would connect the red wire to one hot wire (e.g., black), the black wire to the other hot wire, and the green wire to the grounding terminal.
Before Romex wire became available, cloth-covered wire, knob-and-tube wiring, and armored cable (BX) were commonly used for electrical wiring in residential buildings.
No, silver was never used in BX cable.
It used to be, but now the ground wire (which replaced the aluminum strip) in the BX cable is used. The ground wire is now used to complete the grounding of connected devices rather that the sheath of the BX.
A BX connector is a special type of box connector used for securing a BX cable to a junction box. BX is a type of armoured cable that is used for specific locations where ordinary Romex cable could become damaged. Before the connector is installed onto the BX cable there is a small PVC collar to be installed. In the trade it is called an anti short. It slides between the outer sheath of the BX and the conductors inside the sheath. It adds protection for the inner conductors from rubbing against the outer sheath if any vibration is involved in the installation. There is usually a small hole in the BX connector and the red anti short can be seen through this hole. This makes it easy for the electrical inspector to see if the anti short bushing has been installed during an inspection, and they do check.
these little devices are generally called connectors when you cut the armor it leaves some burs so there a little fiber bushing you slip under the armor and over the wire before putting in into the connector and into the box rome cable company had a armored cable they called BX which kinda stuck the generic term is MC for metal clad MC Cable Connectors <<>> These little red bushings that come with rolls of BX cable are called anti-shorts. <<>> the little bushings are also called redheads
This is BX cable also considered AC cable. It is sheathed in either aluminum or steel sheath. It was used years ago to wire most homes but has been replaced by Romex. Here's a great blurb that I found. . http://www.faqs.org/faqs/electrical-wiring/part2/section-5.html
No, you cannot run a BX cable with only two wires to power your table saw safely. The green wire is for grounding, which is crucial for safety. In this case, you would connect the red wire to one hot wire (e.g., black), the black wire to the other hot wire, and the green wire to the grounding terminal.
You don't glue BX cable to steel. If it has to go on a beam, you usually hold it on with plastic 'tie wraps'. --------------------------------------------------------------------- Wire ties are not recommended for mounting armored bx cables to steel beams. Wire ties are normally used for bundling wires together to keep them neat, though some glue on cabinet tabs are made to mount wires inside control cabinets. These are not meant for external wire mounting. Cast aluminum clamps are made that hold the bx cable to the beam. a hole must be drilled in the beam to mount the clamps with screws, OR specially made mounting clamps (similar to c-clamps can be mounted to the edge of the beam, then the clamps mounted to those. It is recommended there be no less than one clamp every 6 feet (~2 meters).
Bronx
.code main proc mov ax,@data mov ds,ax lea dx,msg ;printing msg mov ah,09h int 21h mov ax,x ;ax=x mov bx,y ;bx=y cmp ax,0 ;jump to l3 if ax is negtive jb l3 cmp bx,0 ;jump to l6 if bx is negative jb l6 cmp ax,bx ;if ax<bx,then jump to l1 jl l1 sub ax,bx ;else normal sub mov diff,ax ;diff=result is stored jmp l2 l1: ;iff (+)ax<(+)bx neg bx ;bx=-bx clc add ax,bx neg ax ;-ans=ans mov diff,ax mov dx,2dh ;print '-' mov ah,02h int 21h jmp l2 l3: ;iff (-)ax neg ax ;-ax=ax cmp bx,0 ;jump to l4 if bx is negative jb l4 clc add ax,bx ;ax=(+)ax+(+)bx mov ax,diff mov dx,2dh ;print '-' mov ah,02h int 21h jmp l2 l4: ;if (-)ax & (-)bx neg bx ;-bx=bx cmp ax,bx ;if ax>bx then jump to l5 jg l5 sub ax,bx ;else ax-bx mov diff,ax mov dx,2dh ;print '-' mov ah,02h int 21h jmp l3 l5: ;if(-)ax>(-)bx xchg ax,bx ;exchange ax and bx sub ax,bx ;ax-bx mov diff,ax ;ans is positive jmp l2 l6: ;iff (-)bx neg bx ;-bx=bx add ax,bx ;ax-(-)bx mov diff,ax ;ans will be positive mov ah,4ch int 21h main endp
To add a ground wire to a two-wire receptacle, you need to run a new ground wire from the receptacle to the grounding bar in the electrical panel or to a nearby grounding point. Make sure the new ground wire is securely connected to the receptacle and to the grounding point to provide proper grounding for the outlet. It's important to follow all safety precautions and local electrical codes when working with electrical systems.
I have a code for 16 bit subtraction.. just replace ax by al,bx by bl etc... .code main proc mov ax,@data mov ds,ax lea dx,msg ;printing msg mov ah,09h int 21h mov ax,x ;ax=x(any number) mov bx,y ;bx=y( " ") cmp ax,0 ;jump to l3 if ax is negtive jb l3 cmp bx,0 ;jump to l6 if bx is negative jb l6 cmp ax,bx ;if ax<bx,then jump to l1 jl l1 sub ax,bx ;else normal sub mov diff,ax ;diff=result is stored jmp l2 l1: ;iff (+)ax<(+)bx neg bx ;bx=-bx clc add ax,bx neg ax ;-ans=ans mov diff,ax mov dx,2dh ;print '-' mov ah,02h int 21h jmp l2 l3: ;iff (-)ax neg ax ;-ax=ax cmp bx,0 ;jump to l4 if bx is negative jb l4 clc add ax,bx ;ax=(+)ax+(+)bx mov ax,diff mov dx,2dh ;print '-' mov ah,02h int 21h jmp l2 l4: ;if (-)ax & (-)bx neg bx ;-bx=bx cmp ax,bx ;if ax>bx then jump to l5 jg l5 sub ax,bx ;else ax-bx mov diff,ax mov dx,2dh ;print '-' mov ah,02h int 21h jmp l3 l5: ;if(-)ax>(-)bx xchg ax,bx ;exchange ax and bx sub ax,bx ;ax-bx mov diff,ax ;ans is positive jmp l2 l6: ;iff (-)bx neg bx ;-bx=bx add ax,bx ;ax-(-)bx mov diff,ax ;ans will be positive mov ah,4ch int 21h main endp