(7) TPI Cable in metallic structures
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7 Terms
What type of treatment’s usually applied to surface of rigid metallic conduit during manufacture, and why?
Annealing/galvanising, to protect the conduit from corrosion
How are two lengths of rigid metallic conduit joined?
Screwed coupling
What are the following accessories called?
Inspection elbow gal. cast iron, inspection tee gal. cast iron, 4-entry junction box, gal. cast iron, metal lock ring, nipple
What are the following accessories called?
Coupling, steel locknut, union, PVC male bush, PVC female bush, full saddle, half saddle
What is maximum recommended distance between supports for 20mm rigid metal conduit?
2 metres
What are the requirements for a cable trunking with a hand-removable lid when TPI cables installed?
TPI cables must be sheathed
How is continuity held between separate sections of metallic cable trunking with non-metallic between them?
Connected by bridge of cables around enclosure
Note 
Flashcards (24)