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2. Thermoplastic-sheathed cable - Wikipedia

   en.wikipedia.org/wiki/Thermoplastic-sheathed_cable

   A thermoplastic-sheathed cable (TPS) consists of a toughened outer sheath of polyvinyl chloride (PVC) thermoplastic, covering one or more individual annealed copper conductors, themselves insulated with PVC. This type of wiring is commonly used for residential and light commercial construction in many countries.

3. Electrical conduit - Wikipedia

   en.wikipedia.org/wiki/Electrical_conduit

   In addition to providing access to wires for pulling, "L" fittings allow a 90 degree turn in conduit where there is insufficient space for a full-radius 90 degree sweep (curved conduit section). T-shaped bodies ("Tees") feature an inlet in line with the access cover and outlets to both the cover's left and right.

4. BS 7671 - Wikipedia

   en.wikipedia.org/wiki/BS_7671

   BS 7671 only covers electrical systems with the following characteristics: having a nominal voltage up to but not exceeding 1000V AC or 1500V DC for AC having a supply frequency of 50 , 60 or 400Hz , though the use of other frequencies for special purposes is not excluded.

5. Twin and earth - Wikipedia

   en.wikipedia.org/wiki/Twin_and_earth

   'Twin and Earth' electrical cable to British Standard 6004, with twin 6 mm² conductors and uninsulated 2.5 mm² earth continuity conductor. Twin and earth (often written "T&E" and sometimes "T and E") cable is a colloquial name in the UK, Australia, New Zealand and other countries for a type of flat sheathed fixed mains electricity cable, containing two insulated current-carrying conductors ...

6. Electrical tape - Wikipedia

   en.wikipedia.org/wiki/Electrical_tape

   Electrical tape (or insulating tape) is a type of pressure-sensitive tape used to insulate electrical wires and other materials that conduct electricity. It can be made of many plastics but PVC (polyvinyl chloride, "vinyl") is the most popular, as it stretches well and gives effective and long-lasting insulation.

7. Junction box - Wikipedia

   en.wikipedia.org/wiki/Junction_box

   A small metal, plastic or fiberglass junction box may form part of an electrical conduit or thermoplastic-sheathed cable (TPS) wiring system in a building. If designed for surface mounting, it is used mostly in ceilings, concrete or concealed behind an access panel—particularly in domestic or commercial buildings [2].