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Solar PV cable used a AC sub main

sparkiemike

Hi ,

I’ve come across an installation where a second consumer unit is supplied via some solar flex 6mm. The consumer   unit is connected to the solar inverter and a garden cabin.

There is no BS number, but it is stamped OLFLEX SOLAR XLS-R  0.6/1KV 6.0 SQ MM

The cable has a stranded conductor, white plastic insulation with a black sheath. 

is it okay to use this cable for AC voltages and does it need to be in containment or would it be considered double insulated?

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  • +1

    You mean this?

    The datasheet (and cable marking) says it's rated for 600/1000V for AC, so in theory usable; perhaps consider similar to a double-insulation outdoor-rated version of tri-rated. Whether the installation it conforms to BS7671 will depend on the details e.g. risk of mechanical damage etc.

    Note that the conductors will be class 5 stranded and tinned so may need treatment (ferrules) in terminations, depending on the equipment.

    Lapp say it's UKCA marked so should conform to some standard, but I can't see which on the datasheet. I can't find it on their CPR register either. (Do let me know if you find it)

  • +1 in reply to Jam

    PS Beaten to it, darn telephone! (c:

  • 0 in reply to Jam
    Jam said:
    Lapp say it's UKCA marked so should conform to some standard

    There's a Technical File approach to Regulatory Marking.

    Normally for Solar DC cable in the EU the standard would normally be EN 50618, cable type H1Z2Z2-K.

    Cables to the standard are required to be marked along their length with:

    • Manufacturer's name, trademark or number
    • Cable type 'H1Z2Z2-K'
    • Nominal cross-sectional area e.g. '6 mm2'

    BS EN 50618 cables have a nominal DC voltage of 1.5 kV between conductors, and between conductors and Earth.

    Regards BS 7671 compliance, if the cable is not to a British or Harmonized standard, see Regulation Group 511 (particularly the requirement of Regulation 511.2, and confirmation and recording of such in the same Regulation).

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  • 0 in reply to Jam
    Jam said:
    Lapp say it's UKCA marked so should conform to some standard

    There's a Technical File approach to Regulatory Marking.

    Normally for Solar DC cable in the EU the standard would normally be EN 50618, cable type H1Z2Z2-K.

    Cables to the standard are required to be marked along their length with:

    • Manufacturer's name, trademark or number
    • Cable type 'H1Z2Z2-K'
    • Nominal cross-sectional area e.g. '6 mm2'

    BS EN 50618 cables have a nominal DC voltage of 1.5 kV between conductors, and between conductors and Earth.

    Regards BS 7671 compliance, if the cable is not to a British or Harmonized standard, see Regulation Group 511 (particularly the requirement of Regulation 511.2, and confirmation and recording of such in the same Regulation).

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