This will ensure that the mark is visible if the conduit needs to be rotated. Before placing the conduit in the bender, accurately measure and mark the conduit with a thin line that goes completely around the conduit.For multi-conductor control cable and communications cable, it is recommended that runs be limited to two 90 degree bends (a total of 180 degrees) per EIA / TIA-569 Commercial Building Standard for Telecommunications Pathways and Spaces. The fewer total degrees between pulling points and the use of shallow bends combine to reduce the strain created by pulling wire. Although the National Electric Code ® allows up to 360 degrees between pulling points, using as few bends as possible, and none exceeding 90 degrees, will make wire pulling easier.When using a power bender, it is important that pins are in the proper pin holes for the conduit size. It is extremely important that the bender, its components and accessories are matched to the conduit type and size being bent because of the forces being applied.Read and understand all the bender manufacturers’ operating and safety instructions before operating their equipment.Contact bender manufacturers for complete information. The information in this section is supplemental to that provided by the manufacturers. Manufacturers of bending equipment publish manuals for each specific bender model which provide excellent in-depth information on bending conduit. The skills needed to obtain a level of proficiency are readily learned and require knowledge of basic mathematics, industry terminology and bending tools. These most commonly used types of bends can be quickly, efficiently, and economically made by a knowledgeable and experienced installer. While a full range of factory elbows are readily available, they do not address the variability of stubs, back-to-back, offset, and saddle bends encountered in the field-routing of conduit and EMT. The variety of electrical installations makes field bending necessary.

2 inch tube bend chart