pfc

  1. L

    Low PFC

    A quick measurement using a EZ 2500 shows a PFC of 6A @ 40 Ohm. Given a 240V supply, the maths works out, but is this PFC on the low side? Not yet sure how the earth is provided, perhaps an earth rod. 40 Ohm just seems a little high to me. There is a 30mA RCD.
  2. L

    Pros & cons between universal beams vs parallel flange channels

    Good morning. For my loft conversion the structural engineer designed PFC steels to carry the new load of the 9" X 2" C24 floor joists. The building control officer stated that I could have also used universal beams instead, because "it would have cost a lot less in steel". Is this an accurate...
    • Lisa Stephens
    • Thread
    • bco building control officer loft loft conversion parallel flange channel pfc structural engineer universal beam
    • Replies: 1
    • Forum: Floors, Stairs and Lofts
  3. L

    What is the correct method for installing padstones and steel pfc

    I have just started my own DIY loft conversion. I have already obtained planning permission and building regs permission. I removed all of the rubbish from the loft and then had scaffolding installed. The structural engineer drawing specifies three loft pieces of PFC steel beams which are 4.9M...
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