Project/ElectricalWorks/DB3aRework: Difference between revisions

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Objectives :
Objectives :
* Bring the Emergency Top control into use for the 3-phase tools (as appropriate)
* Bring the Emergency Top control into use for the 3-phase tools (as appropriate)
* Separate the 16A sockets for the Bandsaw and Welder onto individual circuits
* Separate the 16A sockets for the [[tools/bandsaw|Bandsaw]] and [[Tools/EMP235ic|MIG Welder]] onto individual circuits
* Separate the Pillar Drill and Pedestal Grinder onto individual circuits
* Separate the [[tools/pillardrill|Pillar Drill]] and [[tools/pedgrinder|Pedestal Grinder]] onto individual circuits
* Provide a new 16A socket for the Planer Thicknesser
* Provide a new 16A socket for the [[Tools/AT260SPTPlanner|Planer-Thicknesser]]
* Provide capacity for a new 16A socket in future
* Provide capacity for a new 16A socket in future


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* Wire new 32A breaker to new E-Stop contactor with 10mm conduit cable
* Wire new 32A breaker to new E-Stop contactor with 10mm conduit cable
* Install new earth block onto wall of DB3A. Bond cabinet and door to earth block.
* Install new earth block onto wall of DB3A. Bond cabinet and door to earth block.
* Connect metal lathe wiring directly back to MCB 5L1/L2/L3 in Main board - 4-pole junction / 20A
* Connect [[tools/metallathe|Metal Lathe]] wiring directly back to MCB 5L1/L2/L3 in Main board - 4-pole junction / 20A
* Install new 16A 3-phase RCBO's for Piller Drill and Pedestal Grinder
* Install new 16A 3-phase RCBO's for [[tools/pillardrill|Pillar Drill]] and [[tools/pedgrinder|Pedestal Grinder]]
* Install new 16A 1-phase RCBO's for Welder, Planer Thicknesser and spare circuit
* Install new 16A 1-phase RCBO's for [[Tools/EMP235ic|MIG Welder]], [[Tools/AT260SPTPlanner|Planer-Thicknesser]] and spare circuit
* Install new 6-way DIN rail terminal block for neutral connections
* Install new 6-way DIN rail terminal block for neutral connections
* Install new 4-way DIN rail terminal blocks for L1, L2 and L3 switched connections
* Install new 4-way DIN rail terminal blocks for L1, L2 and L3 switched connections
* Pull new 2.5mm cable through for Welder socket. Remove old wiring from shared 16A box.
* Pull new 2.5mm cable through for [[Tools/EMP235ic|MIG Welder]] socket. Remove old wiring from shared 16A box.
* Install new 20mm conduit in ceiling to centre pillar.
* Install new 20mm conduit in ceiling to centre pillar.
* Pull new 2.5mm cable through for Planer Thicknesser socket. Install new 16A surface socket on central pillar.
* Pull new 2.5mm cable through for [[Tools/AT260SPTPlanner|Planer-Thicknesser]] socket. Install new 16A surface socket on central pillar.


== Photos and Drawings ==
== Photos and Drawings ==

Revision as of 11:44, 6 June 2021

Introduction

A project to re-work DB3A.

Objectives :

  • Bring the Emergency Top control into use for the 3-phase tools (as appropriate)
  • Separate the 16A sockets for the Bandsaw and MIG Welder onto individual circuits
  • Separate the Pillar Drill and Pedestal Grinder onto individual circuits
  • Provide a new 16A socket for the Planer-Thicknesser
  • Provide capacity for a new 16A socket in future

Current State

The existing board is based on 2 25mm DIN rails, each of 250mm length. These are mounted on a removeable back plate.

Three 4-pole NC contactors are fitted, but only being used as junction blocks at present.

The primary cable entry is via the trunking at the bottom of the box, with a single armoured cable entering on the top-right side.

Planned Work

  • Test Emergency Stop contactor power is working and correct.
  • Strip existing board
  • Strip back armoured cable sheath to ~20mm from point of entry
  • Move lower DIN rail down on baseplate to make room for wiring between DIN rails
  • Install Schneider 63A 4-pole contactor, connected to E-Stop system
  • Replace MCB 4L1/L2/L3 in Main Board with Schneider 32A Type-C breaker.
  • Wire new 32A breaker to new E-Stop contactor with 10mm conduit cable
  • Install new earth block onto wall of DB3A. Bond cabinet and door to earth block.
  • Connect Metal Lathe wiring directly back to MCB 5L1/L2/L3 in Main board - 4-pole junction / 20A
  • Install new 16A 3-phase RCBO's for Pillar Drill and Pedestal Grinder
  • Install new 16A 1-phase RCBO's for MIG Welder, Planer-Thicknesser and spare circuit
  • Install new 6-way DIN rail terminal block for neutral connections
  • Install new 4-way DIN rail terminal blocks for L1, L2 and L3 switched connections
  • Pull new 2.5mm cable through for MIG Welder socket. Remove old wiring from shared 16A box.
  • Install new 20mm conduit in ceiling to centre pillar.
  • Pull new 2.5mm cable through for Planer-Thicknesser socket. Install new 16A surface socket on central pillar.

Photos and Drawings

  • Overview

    Overview

  • Top section detail

    Top section detail

  • Bottom section detail

    Bottom section detail

  • Top left detail

    Top left detail

  • Top right detail

    Top right detail

  • Bottom left detail

    Bottom left detail

  • Bottom right detail

    Bottom right detail

  • DB3A dimensions

    DB3A dimensions

  • Proposed new layout

    Proposed new layout

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