Newnes Industrial Control Wiring Guide by Bob Mercer

By Bob Mercer

  • "Quick reference for install strategies" collage Lecturer

BS EN60529-IP Codes

, Page vii
1 - Safety

, Pages 1-6
2 - Drawings

, Pages 7-16
3 - cord forms and preparation

, Pages 17-25
4 - Soldering and termination

, Pages 26-46
5 - Cable forming

, Pages 47-61
6 - Connections and routing

, Pages 62-67
7 - Hardware

, Pages 68-75
8 - elements (active)

, Pages 76-91
9 - elements (passive)

, Pages 92-107
10 - Switches and lamps

, Pages 108-113
11 - Earthing and screening

, Pages 114-120
12 - PLC wiring

, Pages 121-124

, Pages 125-127

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Additional resources for Newnes Industrial Control Wiring Guide

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It will melt and quickly flow around the joint. • Remove the solder before the iron. • It should take about three seconds to heat, melt and flow. 1. Checking solder joints • The outline of the wire should be visible under the solder. • The soldered joint should be shiny and the solder outline should be concave. 30 4. SOLDERING AND TERMINATION r • This joint is not covered. There is not enough solder. Reheat and put more on. • There is too much solder here. Use a desoldering gun to remove all the solder then resolder the joint.

Place the ferrule into the crimp tool jaws and clamp it lightly by squeezing the handles a small amount. • Push the wire all the way in so that the insulation butts against the inside of the plastic shroud. • Crimp the joint by further squeezing the handles. The tool will lock when the joint is complete, release by squeezing the handles once more. • Trim off the excess conductor. 38 4. 5. Insulated eyelets and spades These are used to terminate wires which will be fixed under a screw. RED BLUE • They are also colour coded by wire size.

Place the plug body onto the contact assembly. • Hold the plug body and screw the cap into position. 6. Fitting a coaxial soclcet • These are normally chassis-mounted sockets. • The centre conductor is soldered to the pin as shown. • The pigtail is first soldered to an eyelet, which is then bolted to the socket by one of the mounting screws. • Note that the centre conductor must not be under any strain. If the cable is not clamped to the chassis then the pigtail should be shorter than the centre conductor so that it provides the stress relief.

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