(5, 6) Circular TPS, TPI Cable in non-metallic enclosures

What are these cables called and how are they used?

What is the minimum internal bend radius for 10mm and 13mm orange circ tps?

60mm, 78mm (x6 cable sizes)

What industrial environments are industrial accessories designed to protect against?

Explosive atmospheres, mechanical damage, corrosive gases, water/other liquids, temperature extremes

How is IP Rating measured?

IR00 protects against jack shit, IR67 dust-tight and submersible

How to perform earth continuity test on 3-phase cable connected to 20A outlet?

Loop load and earth, test on pins. 0Ω desired

How to perform IR Test on 3-phase cable connected to 20A outlet?

Test on Load, Earth with IR Tester. >1MΩ minimum

How to perform short circuit test on 3-phase cable connected to 20A outlet?

Test all loads on each other and neutral, infinityΩ desired

How to perform circuit interconnect test on 3 phase cable connected to 20A outlet?

Test all lives of each cable on others’ neutral, infinityΩ desired

How to perform polarity + neutral-earth transposition on 3 phase cable connected to 20A outlet?

see pic for details

What does TPI stand for and what is it commonly called?

Thermoplastic Insulated, Building wire

Why isnt looping used when wiring with TPI cables?

Individual wires not bound in 1 as in TPS so can go directly to their intended destination

Where a wiring enclosure’s needed, why is TPI better than TPS?

Size of enclosure required for TPI is smaller

What is required to use common earth wire for multiple circuits when using TPI cable?

Earth wire must be sufficient size to provide earthing for largest active

What is the standard length of a standard rigid pvc piece?

4 metres

What determines nominal size of rigid pvc conduit?

Outside diameter of conduit

What does the HFT in “heavy-duty rigid HFT conduit” mean?

Halogen free, Fire resistant, Temperature stability

Identify characteristics about a pvc conduit labelled: AUSIDUCT – ELECTRICAL – 25mm MD UPVC T 5/60 75-10590

25mm = nominal size
MD = medium duty
T = Treated for exposure to solar radiation
5/60 = Temp range 5 - 60

What are the common names for the following conduit bends?

Offset, double offset, 90 degree bend

What are the pictured accessories called?

PVC inspection elbow, conduit bend, junction box 4-way entry, inspection tee

What are the pictured accessories called?

Conduit coupling, flexible expansion coupling, PVC adaptor, PVC locknut, reduced coupling

What are the pictured accessories called?

Threaded reducer, PVC threaded bush, PVC saddle

What is flexible PVC conduit used for?

Protecting cables in workspaces, protecting cable supplying fixed machinery