Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17

Thread: Section 7.12 Alternate supplies

  1. #11
    Full Member
    Join Date
    Nov 2019
    Location
    Alberton
    Posts
    59
    Thanks
    1
    Thanked 2 Times in 2 Posts
    7.12.2.1 - Notices and audible or visible power on indicators.
    I did not install visible power on indicators because my prepaid meter is right next to my DB with a light display when “Eskom is on” it is light up and also an inverter keypad right next to the prepaid with a light display when inverter is on. I did not see the need to install more lights due to these visible displays but am wondering if the displays could be regarded as visible indicators. I did then label the DB to warn of “Alternate solar supply “ any advise on my scenario?

  2. #12
    Full Member
    Join Date
    Nov 2019
    Location
    Alberton
    Posts
    59
    Thanks
    1
    Thanked 2 Times in 2 Posts
    Alternate supplies are growing fast and this industry requires urgent attention.

    I have came across installers doing complete solar installations with very little knoledge of the SANS wiring code. They then get an installation electrician to come and install just the change over switch. The electrician than issue a C.O.C. for that C/O switch and the installer switch on the solar as if all is compliant. This to me is a gray area as to what regulations were followed doing the dc wiring, circuits and fuse ratings on batteries and pv panels.

  3. #13
    Diamond Member
    Join Date
    Apr 2010
    Location
    planet earth
    Posts
    2,507
    Thanks
    115
    Thanked 206 Times in 180 Posts
    Quote Originally Posted by Rifrug View Post
    Alternate supplies are growing fast and this industry requires urgent attention.

    I have came across installers doing complete solar installations with very little knoledge of the SANS wiring code. They then get an installation electrician to come and install just the change over switch. The electrician than issue a C.O.C. for that C/O switch and the installer switch on the solar as if all is compliant. This to me is a gray area as to what regulations were followed doing the dc wiring, circuits and fuse ratings on batteries and pv panels.
    There is an even better way to do it ... you do the full installation ...install an electric fence ... fit a gas oven a ... do all those alterations around the house ... then tell everyone you are putting the house up for sale ... contact a company which specialises in COC's ... get them to do a full inspection report and COC for the entire installation
    Comments are based on opinion...not always facts....that's why people use an alias.

  4. #14
    Diamond Member
    Join Date
    Apr 2010
    Location
    planet earth
    Posts
    2,507
    Thanks
    115
    Thanked 206 Times in 180 Posts
    As per image on pg 359 of the sans book ... do you install physical barriers between the normal and eseential supply or do you just leave a gap between the breakers?

    or do you install a 2 level DB one for normal and one for essential?
    Comments are based on opinion...not always facts....that's why people use an alias.

  5. #15
    Full Member
    Join Date
    Nov 2019
    Location
    Alberton
    Posts
    59
    Thanks
    1
    Thanked 2 Times in 2 Posts
    Quote Originally Posted by ians View Post
    As per image on pg 359 of the sans book ... do you install physical barriers between the normal and eseential supply or do you just leave a gap between the breakers?

    or do you install a 2 level DB one for normal and one for essential?
    To my understanding there should be a physical barrier between the different supplies, It would be even better if they could be in different DB’s but the aesthetics become a factor when the DB is inside a main living room or undesired area, who appreciates clusters of DB’s in a home. Also to install a separate DB for four little switches become uneconomical so my preference in a home would be towards installing a physical barrier between supplies if it has adequate space, and ensure that it is clearly labelled with warning signs.

  6. #16
    Full Member
    Join Date
    Nov 2019
    Location
    Alberton
    Posts
    59
    Thanks
    1
    Thanked 2 Times in 2 Posts
    I also prefer one DB with the Eskom Main Switch section and also the Alternate power main Switch section so that both switches can be easily switched off without going through a building looking for where the alternate power main switch is situated.

  7. #17
    Diamond Member
    Join Date
    Apr 2010
    Location
    planet earth
    Posts
    2,507
    Thanks
    115
    Thanked 206 Times in 180 Posts
    This barrier issue was bought up in a dispute between a solar installer and the customer local electrician.

    The question is do you fit a piece of poly carb from the top to the bottom ... or would you regard 2 clipin blanks as an adequate barrier.

    Personally i would think a circuit breaker space/gap between the eskom and alternate power would be adequate.
    Comments are based on opinion...not always facts....that's why people use an alias.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. alternate supplies
    By ians in forum Electrical Contracting Industry Forum
    Replies: 1
    Last Post: 31-Jul-20, 12:29 PM
  2. Multiple supplies in one building
    By ians in forum Electrical Contracting Industry Forum
    Replies: 3
    Last Post: 24-Jul-19, 11:50 AM
  3. COC For Alternate Supply
    By MullerR in forum Electrical Contracting Industry Forum
    Replies: 0
    Last Post: 27-May-16, 09:07 AM
  4. KA testing on UPS Supplies
    By RegElec in forum Electrical Contracting Industry Forum
    Replies: 2
    Last Post: 22-Jul-14, 06:33 AM
  5. Fuel supplies fragile
    By Dave A in forum General Business Forum
    Replies: 0
    Last Post: 27-Apr-08, 01:54 PM

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •