Mirp (Ea) Tee Joint

8/3/2019 Mirp (Ea) Tee Joint

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ENERGY AUSTRALIA11kV Tee & Stub Tee MIRP Resin Joints

July 2009

Training Presentation


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Introduction

This joint is suitable for connecting 11kV main

and branch cables of:

- 3 core polymeric cables,

- Single core polymeric cables,

- 3 core PILC cables,- Single core PILC cables

- 35 to 400 sqmm copper or aluminiumconductors.

- All joint kits are supplied as 3 phase kit.


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Introduction

This presentation provides a general guideline to perform

jointing of a MIRP joint.

In the event of inconsistency between this presentation

and the jointing instruction, the jointing instruction shallprevail.


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Kit Inspection

Read Jointing Instruction CAREFULLY before carry

out jointing.

Check all components are available and identified.


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Preparing Cables

Prepare cables

to dimensionsgiven on the

jointing

instruction

Support cables

at both ends


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Temporary Spacers

Add temporary spacers for:

- proper alignment with jointshell, and

- better support whenbending cables


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Preparing Cables

Abrade and clean cable

outer sheath


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Preparing Cables

Remove cable

outer sheaths


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Preparing Single Core Cables

1. Pack green putty

to form a roundand stop point atcable entry

2. Apply PVC tapeto pack green puttyaround cores


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XLPE Cable Termination of screen wires

Fold backscreen wires

Build up 3 coreswith spacer tape tomeet the I.D. of thecopper tube

2

1

3


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XLPE CABLE Earthing Kit

Tinned copper tube


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XLPE Cable Fitting Earthing Kit

Slide the tube over thespacer tape making sureit is a snug fit

Lay screenwires on

single layerover the tubeand secure byworm driveclamp

Trim off screen wires

1

2

3


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XLPE Cable Stress Control Tapes

Stress control tape

EPR insulating tape

Black mastic tape


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XLPE Cable Applying Stress Control Tapes

Apply:

1. stress control tape, then

2. EPR insulating tape andlastly,

3. black mastic tape on corescreen.


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PILC Cable Removing Lead Sheath


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PILC Cable Removing Core Screen

Tie temporarycotton binders atscreen offpositions and

remove screensper instruction


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PILC Cable Crepe Carbon Paper Tape

Crepe Carbon PaperStress Control Tapein vacuumed tin foilpack


18/45

PILC Cable Applying Crepe Carbon Stress Control

Apply crepecarbon paperstress control tapeper instruction

1

2

3


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PILC Cable Applying Vanished Terylene Tape

2. Apply terylene tape on all cores,

starting as near as possible to thecrotch.

1. Ensure the applied terylenetape is tight and without anyceasing to eliminate voids.


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PILC Cable Earthing with Lead Sheath Clamp

Cut and bend leadsheath clamp perinstruction

1

2

3


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PILC Cable Lead Sheath Clamp

GroovedGrooved PlainPlain

Worm driveclamp

Torque limiter


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PILC Cable Lead Sheath Clamp

1. Apply the first wormdrive clamp to theshort section

2. Using a plain torque limiter,tighten the worm drive clamp until

the torque limiter head shears off.Discard and remove theremainder of the limiter

1

2


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Installing Mechanical Connectors

STOP !!!

Slide the red rubber housings over the singlecable cores prior to fitting the connectors


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26/45

Applying Grey Mastic on Transition Joints

Is the exposed conductor too wide?


27/45

Centralizing the Red Rubber Housings


28/45

Applying Mastic Tapes to PILC Lead Sheath

Apply grey mastic and blackmastic tapes as per instruction


29/45

Fitting Aluminium Screen Cage


30/45

Fitting Aluminium Screen Cage on Copper Tube

Tighten worm

drive clamps.

Ensurefingers are inflat contact

with the tube.


31/45

Fitting Aluminium Screen Cage to Lead Sheath Clamp

1. Trim aluminium finger fingers

if required and put second wormdrive clamp on and tighten.Place GROOVED torque limiter,tighten and shear off.

2. Place PLAIN torquelimiter on the firstworm drive clamp andre-torque.

1

2


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Aluminium Screen Cage

Trim fingers ifnecessary

Tighten wormdrive clamps.


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Fitting Plastic Joint Shell

Cut breathingholes

Apply green puttyfor leak seal

Supportunderneath thejoint shell


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Mixing Compound

Read mixinginstructionCAREFULLY

DO NOTcontaminatemixture with

water


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Pouring Compound

Pour compoundsteadily

Use alternative

filling hole for thenext bucket

Pour the nextbucketimmediately afterthe previous one


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The Joint is completed


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Back Filling

WARNING !!!!!

Do not disturb the jointprior to setting of thecompound including:

Stepping on the cablesoutside the joint

Removing supports for

cables and joint shellBack filling

Rain


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WT-HENLEY MECHANICAL CONNECTORS

5544

332211

1. Connector

2. Parts

3. Gap

4 and 5. Shim sizes

1


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Earthing of Single Core PILC cable

1 2

3 4


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Earthing of Single Core PILC cable

5 6

7


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ARMOURED PILC CABLE

Wipe the armourwires for notmore than 40mmwide.

Clean anddegrease theearth wipe.

1


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ARMOURED PILC CABLE

Install lead sheath clamp andapply black mastic tape

2 3


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www.ipdgroup.com.au

1300 556 601


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Mirp (Ea) Tee Joint

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