Electrical Business

Features Code Conundrum Codes & Standards
Code Conundrum October 2019


October 16, 2019
By Ray Yousef

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TACKLE THE CODE CONUNDRUM IF YOU DARE!

Answers to this month’s questions will appear in the December 2019 issue of Electrical Business.

QUESTION 1

When a photovoltaic (PV) recombiner is more than 7.5 m from the inverter, the disconnect:

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a) shall be rated to interrupt the load.

b) shall be installed within 2 m of the recombiner.

c) may be integral with the recombiner.

d) (all of the above.)

e) is not required.

QUESTION 2

The ampacity of a communication cable marked “-LP” is determined by:

a) Table 60.

b) the ampacity marked on the cable.

c) a qualified person.

d) any of the above.

QUESTION 3

For the identification of intrinsically safe wiring, which of the following methods is acceptable?

a) Cables are labelled.

b) Cables are identified blue.

c) Cables are identified light blue, where light blue is not used for any other cabling.

d) A and B.

e) A and C.



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