what is a looping cicuit?

Question

within a lighting ciruit you can also produce a lighting circuit through a loop what is this ?

Answer 1

http://www.diynot.com/pages/el/el011.php

Lighting circuits are basically radial circuits. There are two distinct types of lighting, circuit the loop-in circuit and the older junction box circuit. Most houses combine aspects of both types of circuits. The loop-in circuit has a cable, running from light to light terminating at the last light as in the conventional radial circuits and then single cable run from the lights to the light switches.
The other type of lighting circuit has a junction box for each light. The cable runs from the consumer unit to the first junction box and then onto the next terminating at the last junction box. Then another cable is run from each junction box to its light and another wire from the junction box to that light switch. The cable used for a lighting circuit is 1mm2 or 1.5mm2 for long runs.

A 5amp fuse or 6amp MCB is used on the consumer unit for a lighting circuit. The maximum load for a lighting circuit is 1200 watts, which amounts to 12 x 100 watt lights. If more lights are needed then another lighting circuit should be used. It is usual to have 2 lighting circuits in a house one upstairs and the other downstairs.

Answer 2

It's when the power goes from one light to the next in a loop hence a loop circuit.

Answer 3

Electric passing through from light to light.