backup

  1. R

    Solar Use of backup power supply

    Hi world of knowledge I have two gen 1 x 5kw hybrid inverter, with batteries. My question is can I connect the two backup out put via 2 isolators and 2 rcbo then combine them into one input in to a 100amp auto switch in the main cupboard outside so if grid goes down I would have 5 kw backup to...
  2. D

    Backup Generator using RV power outlet

    I currently have a 100 amp sub panel for a 50 amp RV hookup (on a 60 amp breaker). This is about 100ft from the main with 2/4 wiring. Would a 12000w generator plugged into RV hookup power the house? I think the issue would be limited amps so I could only run one of the following at a time: 1)...
  3. B

    Solar Panels Add batteries to inc. BackUp on new On-Grid Solar, non-hybrid inverter, can it be done?

    Hi, Recently had 3.6kw solar installed, at the time shortage of batteries & roi figured batteries not quite worth it. thinking otherwise perhaps now with such big increases coming but mostly would really like battery backup. Reading conflicting info. from what I understand a A/C battery system...
  4. J

    USA Whole House Backup Generator Install

    Getting ready to install a 22KW Generac on my home and just had a question to clear up. I have 400A service running to two 200A main panels. I will be installing two 200A transfer switches, mainly because I had 1 already and the 400A is like $2900.00 vs $700.00 for another 200A one. I know that...
  5. J

    Portable Inverter Generator for home backup. What's the simplest set-up?

    I know it's not neat, but can I simply run a single extension cable from a small (3KVA) petrol, portable, inverter generator, positioned outside in my yard, into my house to power a LED TV, plugged in LED lights, radio, internet hub, charge mobiles, etc, perhaps using a four-way socket system...
  6. P

    Wire size for 15kW heat pump electric backup element

    In a few days our local HVAC company will replace our propane furnace with a Mitsubishi heat pump (PUZ-HA42NKA1) and ducted air handler ((PVA-A42AA7) with a 15kW backup electric unit (EH15-MPAS-LB). Submittals and installation instructions can be found on mylinkdrive.com. I'm doing the...
  7. Designmen90

    Backup fuse for SPD?

    Hi everyone , should there be a backup fuse for Q0.1-SPD and what size? Schematic is attached.
  8. F

    Smoke detector with separate backup batteries?

    Hi Guys, Perhaps an odd question but maybe it has been pondered by someone before; Scotland newbuild timber framed house. As required hard wired and interconnected smoke detectors with integral backup batteries. One of them is high up on a vaulted ceiling which requires scaffold to access. I...
  9. F

    9v Battery Backup in line with mains adaptor?

    Hi everyone, I have a Toro garden water controller. It is a 9volt system operated by two PP3 batteries. With age the very thin wires on the battery connection have broken. It is in a shed so I have changed the batteries for a 240/9v adaptor. Works great and saves a lot in replacement batteries...
  10. H

    Could backup battery have damaged my refrigerator?

    I have been working with a great company to install a solar system in my house. The system has a 10kWh backup battery system that can provide power to a subset of our circuits in the event of a power outage. The company sent a technician to do the final check of the battery system. I am not...
  11. M

    Australia Adding a portable petrol backup generator to the main switch board.

    Hi, I want to add a change over switch so that a portable backup petrol generator can be used when grid power goes down. As it has in Victoria. On referring to AS/NZS 3010:2017 to connect a portable generator. Figure 4.3 on page 57 shows a 1 pole Circuit Breaker in the active wire between the...
  12. F

    Australia Please check wiring for Battery backup light

    Hi. Can someone let me know if this is right? I have a Led light which has emergency battery backup. Trying to figure out if what I have worked out is right. Top A in the picture goes to the EM Basic Emergency module which has Lin written on it which says is switched line in the manual. Blue...
  13. timhoward

    Calculating broken PEN touch voltage with backup earth electrode

    My brain has been exercised a bit by this. Am I on the right lines with this extremely simplified example: If we take: -TNCS installation with a Ze of 0.2 ohms. -Plastic services, nothing bonded, keeping it simple -Line conductor resistance from supply transformer should be similar to PEFC and...
  14. V

    Backup Power when working on an occupied house

    Hi, Does anyone provide backup power for when having to turn off power to an occupied house for long periods of time ? I've got to turn off the power to a house next week to trace a ring final fault and it's likely to take all day and the house will be occupied with a young family so they will...
  15. A

    Dash cam backup cam wiring issue

    I just installed a mirror style dash cam and backup cam system. I have the included harness kit ran to the rear of my truck that includes a 4 pin harness and a single red trigger wire. I have the trigger wire hooked into my backup light correctly for sure as I know very well how to do this as...
  16. Moley

    How to replace the Kewtech KT77 date backup battery

    If you have a Kewtech KT77 and its asking you to enter the date and time each time you turn it on it means the backup battery is dead. I've seen sites charging over £60 to replace the battery. It's simple enough to do it yourself. The battery is available online for around £3 or from RS if you...
  17. T

    Using an inverter for home backup power

    I’m interested in using a high-capacity inverter as home power backup when the grid goes down. I see that there are high-capacity inverters such as this one: AIMS Power 6000 Watt Pure Sine Inverter Charger 120/240VAC Output, PICOGLF60W24V240VS -...
  18. S

    Aftermarket Backup Camera

    Hello! I'm new here and would like to see if I can get some assistance with an issue I'm having with installing an Aftermarket Backup Camera. I'm about to throw in the towel on this one but thought I would see if this forum could offer any assistance. I purchased a Wi-Fi backup camera on Amazon...
  19. jonnyb

    Which Multifunction? (backup)

    Hi Chaps, Recommendations please Any recommendations I'll follow up by having a look on youtube etc (Everythings on youtube now!) Looking for a backup/second multifunction tester. Requirements are: Any brand Reliable Must test most (preferably all) RCDs but type A a must obviously. Prefer...
  20. J

    Emergency backup light fail

    Emergency light remained on when power reconnected. Switched to off, now not working. New battery, supply 232v, fuses ok. LED indicators not on Any suggestions, thank you

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