ISBN# 0872885100
Benfield Conduit Bending Book Manual, Second Edition EC&M
Price: $22 Includes Shipping
Benfield Conduit Bending Book Manual, Second Edition, by EC&M, Jack Benfield. 110 pages, spiral bound,6.8 x 4.6 x 0.2 inches. Notes from author, Jack Benfield: "Readers will be happy to discover there is not a technical word in this manual. The Benfield method simply uses addition, subtraction and multiplication. Basic elementary arithmetic does it! About all the electrician needs to know is where the end of his conduit stub will be...how far to space his bends apart to make true offsets and saddles, and where the back of his bends will lay. To be certain that these instructions are cystal clear, I have used plain language with simple formulas, tables and diagrams. The Benfield technique works with ANY make of bender that may be found on ANY job. These formulas work even if bends are made in the crotch of a tree or a hole in a wood block.
This best-selling classic covers every bend in the business! Benfield Conduit Bending Manual is a pocket sized book to be carried along for easy reference and is written in practical, easy-to-understand language. Includes basic non-technical formulas and tables that unlock the secrets of pinpointing bending. Written by Jack Benfield, who invented the conduit bender in the early '30s. Includes 84 diagrams, tables, and photos.
REVIEW:
"In the complicated world of Job Training it is quite refreshing to see that "New and Improved" is not always Best. I was first introduced to the Jack Benfield EMT bender and his Benfield Conduit Bending Manual in 1979 when I first joined the IBEW, and I found the tool and the Manual to both be Superior.Why? Because they are simple to use!! Presently, I train Electrician Apprentices on a daily basis,and I find so many of the other manuals unreasonably complicated in their approach to EMT bending methods, especially for Apprentices who have been in the Trade a short time. When I see an Apprentice failing to grasp the modern (and complicated) approach, I rely on the Benfield Manual and Jack's easy and amusing approach to developing skill in the Electricians Trade. Todays Journeyman Level Electrician can also benefit from having a copy of this book. Highly Recomended!" A. Ferguson, San Francisco, CA
Table of Contents
1 Bending 90 degree Stub-ups 1
2 All About Offsets 7
3 Back-to-Back Bends 17
4 Utilizing the Gain 25
5 Three and Four Bend Saddles 29
6 Bending with HickeysÑVariable Radius Bends for Concentric Conduit Runs 37
7 Rolling Offsets and 90¡ Compound Bends 43
8 Keeping Conduit Runs ÒOn-The-FlatÓ at Ceiling Corners and ÒOver-The-TopÓ 49
9 Electrical Conduit in Concrete slabs, Shifting EMT Stubs, etc. 53
10 Removing Bends in 1/2" EMT 61
11 Bending Surface Metal Molding 63
12 Bending PVC Conduit 69
13 Using Benfield Formulas and Symbols with ÒChicagoÓ Ratchet-Type, Hydraulic or Electrically Powered Benders 71
14 Hand Bender Types Described 75
Sub-section: (A) Two Position Foot-Pedal Benders 75
(B) Rigid Conduit and IMC Benders 81
(C) Combination Benders 87
(D) Handles for Benders and Hickeys 89
15 A Review of Conduit Bending Tips 95
16 General Bending Information of Value 101
17 Summary 109 | 
