Hello
Someone mentioned something about Sprague in a wireway and seperation. I can't find the post so starting this one haha.
Running AC and DC in same wireway but you can run the DC or the AC in Sprague and that is then ok and considered separated but now it's in the same weirway, basically wireway in a wireway if you will haha.
Is that ok to do so ? If so that would help a lot with inverter installs and not running trunking over the entire wall haha.
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Originally Posted by Dylboy
Hello
Someone mentioned something about Sprague in a wireway and seperation. I can't find the post so starting this one haha.
Running AC and DC in same wireway but you can run the DC or the AC in Sprague and that is then ok and considered separated but now it's in the same weirway, basically wireway in a wireway if you will haha.
Is that ok to do so ? If so that would help a lot with inverter installs and not running trunking over the entire wall haha.
Sent from my CPH2197 using Tapatalk
This has become the norm, or should I say the response when someone has use a single channel trunking. Have they actually used it, well that you will only know if you see pics with hte cover off
The group must SA specific.
Another quick question.
When 2 wires are joined using a connector block, it is an exposed connection if the connector block is not in an enclosure.
Now if one slides heat shrink over the connector block and shrinks it, will that still be regarded as an exposed connection if not in an enclosure ?
It gets complicated, what you have to consider is the strain relief.Another quick question, that is why the conduit with the glands on either end make sense, you could just say you bought it from the far east
When 2 wires are joined using a connector block, it is an exposed connection if the connector block is not in an enclosure.
Now if one slides heat shrink over the connector block and shrinks it, will that still be regarded as an exposed connection if not in an enclosure ?
Why use a connector block, if you use a ferule and crimp the wire, sleeve the ferule, then sleeve over the whole connection and just for added protection triple not just double insulate the joint.
Once again it is not that simple, you might need to take mechanical, weather proofing and any other environmental conditions into account.
Something to consider when working in any industry, rules, regs and piles of books, PDF's are used as minimum guidelines.
I find especially on social media, people take what they read as facts without thinking a little out the box, I wish more people would take a statement, sleep on it and think about the statement, then apply their thought and considerations. People just seem to follow any bullshyte on social media as the hype and just flow with it.
Like I see there is some hype about lithium batteries and where they should be installed, that seems to have got some peoples knickers in a knot. The reality is if they were so dangerous why are being sold directly to the public ?
The reason I'm asking is not because I intend doing it. I did an inspection for a COC yesterday and all the downlights have been connected this way.
Both wires going in the same side of the block so that both screws are securing each wire. The blocks have all been heat shrinked and a cable tie holds both wires together taking care of the strain issue. I gave it a pass. Nobody is gonna access that connection without using a tool.
Just trying to get some clarity from the other toppies what they think and if they would insist on enclosures in this case.
Sometimes, irrespective of how long you've been in the game, you get situations where you are not 100%sure.
This was one of them
Yes, it does appear as if DIY operators are picking your brains. So a closed forum is maybe a good idea.
Apprentices, not yet registered can get info and training from their employers/lecturers.
There are now so many fly-by-night operators, it's a nightmare.
For an industry body to be successful, it has to be regulated. Non-compliance should be reported and dealt with.
In the metering industry, we have now with facilitation by the DTIC, formed the South African Metering Industry Association. https://www.samia-za.co.za/
This includes water and electricity meters. This has led to the designation and localization of residential electricity prepayment, post-paid, and smart meters at local content thresholds of between 50-70% where the state and its entities are the procurers.
Excellence is not a skill; its an attitude...
It is a tricky one as the sign off is for " reasonable safe " and needs to comply to Fundamentals section 5 in Sans 10142-1 which it would appear to satisfy as per 5.2
5.2 Safety
5.2.1 Live parts
It shall not be possible to touch any live part within arm's reach with the
standard test finger (see SANS 60529)
a) during normal operation, or
b) when a cover is removed, unless the cover is removed with the use of a
tool or a key.
Personally , i will not sign off on it as once the heatshrink is removed that person would need to put heat shrink back again , which is likely not to happen.
Think they should change that reg to say " and put back "
If the client wants to argue , which we have had with an installation that we would not accept the coc because of a similar set up to your description, we use
5.1 General
All commodities in an electrical installation shall be installed in accordance
with the requirements in this part of SANS 10142 and with the manufacturer's
instructions, where applicable.
NOTE 1 This clause contains the general safety principles applicable to electrical
installations.
NOTE 2 The manufacturer's instructions may contain more stringent requirements.
And the Cable manufacturers pamphlets state joints shall be in a box
Then we have 6.3.7 which in my opinion pretty much stops any arguments.
When we had the dispute over the joints we asked the client and contractor to show us in the regulations where we can use a cable tie and connector block without it being in an enclosure
6.3.7 Joints and terminations
6.3.7.1 Joints and terminations of cables, cores and conductors shall be
made in accordance with manufacturers' instructions or the appropriate part
of SANS 10198-10 and SANS 10198-11.
Flexible cables shall only be joined using termination boxes, cable couplers or
manufacturers’ jointing kits.
All joints shall be accessible, protected against strain, and protected in
accordance with 5.2.1, except for joints made and sealed permanently and
intended to be maintenance free.
6.3.7.2 Joints and terminations shall not
a) adversely affect the current-carrying capacity, the insulation resist-ance or
the earth continuity of the cable, core or conductor in which they are made,
b) be made in any connector, bend, elbow or tee-piece of a conduit,
c) allow the strands of a stranded conductor to spread, or
d) require strands of a stranded conductor to be cut away to allow connection
of the conductors (for example, to terminals).
Intresting on the sprague of the wireway in wireway thing haha.
And the connector block with heat shrink and cable tie I see a fine fit adtaultlly, it's quick and effective.
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Now if someone hadn'nt pissed off GCE, he would have posted the regulation
What people dont realise is that all the information shared on this platform, comes from people who waste their valuable time to contribute to this forum.
I dont think people realise the value of some of the information shared here.
Dylboy (30-Sep-22)
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