do plastic junction boxes need clamps The critical point may be that none are rated as complete retention devices anyway, meaning that cable must be fastened (stapled) within 12" of the box with any of them, and within 8" for boxes that don't have clamps.
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0 · romex cable to plastic box
1 · plastic electrical boxes broken
2 · nm cable for plastic box
3 · cable clamps for plastic boxes
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Per Code, a single-gang plastic box for NM cable need not have a cable clamp. If you're working with the blue Carlon boxes, the most common brand in my area, the single-gang boxes have four knockouts, one in each corner.
Single gang boxes do not require clamps & must be stapled within 8", 2 gang & larger do require clamps & be stapled within 12". • Discover whether plastic junction boxes require clamps and learn about their built-. Not only do cables need to be clamped entering the box but the manufacturer's NRTL listing is based on use and installation according to the . Most 2 gang and octo boxes have integral clamps to hold the NM cable in place, simply by knocking it loose and the plastic tab puts pressure on the cable to hold it in place .
The critical point may be that none are rated as complete retention devices anyway, meaning that cable must be fastened (stapled) within 12" of the box with any of them, and within 8" for boxes that don't have clamps. The electrician used two-screw clamps in plastic boxes to make the splices from THWN in underground PVC to Romex for the indoor sections. No bonding bushings anywhere. .
Edit 1 - Replaced plastic box I took the advice here and replaced the plastic 3-gang box with a 4"x4" metal box, using appropriate through-the-box cable clamps. I will post a picture of the final product. Many plastic boxes have doors that act as clamps to hold the electrical cable to the box, eliminating the need for additional clamps. On the downside, plastic boxes tend to become misshapen when stressed.
Per Code, a single-gang plastic box for NM cable need not have a cable clamp. If you're working with the blue Carlon boxes, the most common brand in my area, the single-gang boxes have four knockouts, one in each corner.
Single gang boxes do not require clamps & must be stapled within 8", 2 gang & larger do require clamps & be stapled within 12".• Discover whether plastic junction boxes require clamps and learn about their built-. Not only do cables need to be clamped entering the box but the manufacturer's NRTL listing is based on use and installation according to the design of the product. Finally, unnecessary or unused openings in electrical junction boxes are not allowed.
Most 2 gang and octo boxes have integral clamps to hold the NM cable in place, simply by knocking it loose and the plastic tab puts pressure on the cable to hold it in place relatively secure. Single gang boxes usually just have knock-outs and don't have integral clamps. The critical point may be that none are rated as complete retention devices anyway, meaning that cable must be fastened (stapled) within 12" of the box with any of them, and within 8" for boxes that don't have clamps. The electrician used two-screw clamps in plastic boxes to make the splices from THWN in underground PVC to Romex for the indoor sections. No bonding bushings anywhere. Looked quite "hack." Edit 1 - Replaced plastic box I took the advice here and replaced the plastic 3-gang box with a 4"x4" metal box, using appropriate through-the-box cable clamps. I will post a picture of the final product.
Many plastic boxes have doors that act as clamps to hold the electrical cable to the box, eliminating the need for additional clamps. On the downside, plastic boxes tend to become misshapen when stressed. In the Carlon blue multigang boxes, the flaps are to remain for the section Greg cited, 314.17(C). The NM is to be clamped to the box, and the cheezy flaps that snap off in the frigid (< 40 degrees ) cold are that clamp. Per Code, a single-gang plastic box for NM cable need not have a cable clamp. If you're working with the blue Carlon boxes, the most common brand in my area, the single-gang boxes have four knockouts, one in each corner. Single gang boxes do not require clamps & must be stapled within 8", 2 gang & larger do require clamps & be stapled within 12".
• Discover whether plastic junction boxes require clamps and learn about their built-. Not only do cables need to be clamped entering the box but the manufacturer's NRTL listing is based on use and installation according to the design of the product. Finally, unnecessary or unused openings in electrical junction boxes are not allowed.
Most 2 gang and octo boxes have integral clamps to hold the NM cable in place, simply by knocking it loose and the plastic tab puts pressure on the cable to hold it in place relatively secure. Single gang boxes usually just have knock-outs and don't have integral clamps. The critical point may be that none are rated as complete retention devices anyway, meaning that cable must be fastened (stapled) within 12" of the box with any of them, and within 8" for boxes that don't have clamps. The electrician used two-screw clamps in plastic boxes to make the splices from THWN in underground PVC to Romex for the indoor sections. No bonding bushings anywhere. Looked quite "hack." Edit 1 - Replaced plastic box I took the advice here and replaced the plastic 3-gang box with a 4"x4" metal box, using appropriate through-the-box cable clamps. I will post a picture of the final product.
Many plastic boxes have doors that act as clamps to hold the electrical cable to the box, eliminating the need for additional clamps. On the downside, plastic boxes tend to become misshapen when stressed.
romex cable to plastic box
electrical converter box
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do plastic junction boxes need clamps|plastic electrical boxes broken