Good rising.
Busy planning a job for tomorrow. Surface job in a larny complex. Newly built garage.
Was planning to use conduit and camera boxes for connections and terminations as normal, but client doesn't want conduit.
Insists on trunking.
Quick question. I have checked SANS , but I need a bit of confirmation. Are terminations and connections on FTE allowed to be made in trunking ?
Peace out .. Derek
Morning!
Good question...
I would say yes if easily accessible and maybe a note saying where it is.
I have often seen cables extended inside a 100x40 trunking. Even in UK.
What did SANS say ?
Only question I guess is what manufacturer says as that may be the ultimate say.
SANS may not know but the manufacturer should.
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A question that has no straight black and white answer but I would say not unless you use a cable couplerOriginally Posted by Derlyn
We avoid joints in trunking purely due to fault finding afterwards and most of our specs from the consultants do not allow it.
Saying that we have had to join on long runs and have used the proper IP rated " connector " ,which has the glands on either side, to prevent strain and also in case somebody is busy with his fingers in the trunking tracing a circuit.
5.2.1 no touching without opening with the use of a tool
6.3.7 - joints accessible ( trunking , yes if you can find It) , protected against strain ( going to be difficult unless you use a coupler )
6.5.1.1 k - also refers to joints not accessible even when covers are open.
Have pasted what I perceive to be relevant regs below
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.
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).
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.
6.5 Wireways
6.5.1 General
6.5.1.1 When a wireway is installed
k) where it is accessible to the public, protection shall be such that it is not
possible to touch any live parts with either the standard jointed test finger
or the 2,5 mm diameter 100 mm long rod (see SANS 60529). This
protection also applies after opening any door or cover that can be opened
without the use of a tool or key; and
With regards to using cabtyre in electrical installations ... I have found on many occasions that people use a 3 core cabtyre to connect a PEC ... the brown/ live ... blue/neutral and the yellow/green as the return live.
Then you get the twin specialists red/live ... black /neutral and bare earth sleeved with a red or colour sleeve ... In fact recently I called out an inspector who had signed off and installation in a fast food outlet ... the earth wire was used as the return to the lights ... he seemed to feel he had done nothing wrong ... thats wher ethe fight started ... the wire was a twin 2.5 mm connected to a 16 amp breaker ... so he felt that the reduced wire sized was protected from overload ... but I pointed out the the earth only had one layer of protection.
not keeping up to date with the regs for so long ... maybe things have changed and you can now use the earth as a return ... nothing surprises me anymore.
6.3.3.2 The means of identification for an a.c. circuit may be by colours or by
numbers, as follows:
a) where colours are used
1) a neutral conductor shall be identified by black only,
2) an earth continuity conductor shall be identified by the bi-colour
green/yellow only, or by being bare. Green/yellow insulated conductors
shall NOT be used as live conductors under any circumstances,
Comments are based on opinion...not always facts....that's why people use an alias.
With regards to joints in trunking ... I recalled being called out for condemning a project which had joints in every part of the trunking ... it was pointed out to me that if only a percentage of the trunking is used as a wireway .. IE 25 % full ... joints were allowed in the trunking ... that where the fight started ... you couldnt fit the cover on the trunking it was so full ... his argument was that when he did the joints the trunking was half empty.
Last edited by ians; 15-Dec-21 at 12:37 PM.
Comments are based on opinion...not always facts....that's why people use an alias.
"wire a house in cabtyre", really?
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To make a mistake is human, to learn from that mistake is knowledge and knowledge is strength.
Yip ... read all the comments ... and the new regs ... it seems the SANS regs have evolved due to low cost housing and ready boards.
Comments are based on opinion...not always facts....that's why people use an alias.
My advice would be to pass the FTE ... secure the 2 pieces with a cable tie or 2 (strain relief) fold it back and use my favourite cheapest joint ... the pipe with the 2 glands (protection from the test finger) if you have space ...
Anyone recognise this ... looks just like something posted on this forum a while back ... at least now we have a standard to refer to when doing the coupling joint
https://www.mce.co.za/#!itemdetails/...2Dffc60bcc91de
or ferrules and silicon filled heat shrink ... FTE secured with cable ties.
or if the budget allows https://www.mce.co.za/#!itemdetails/...2Dde778df52724
just remember you cant run the power and camera cabling in the same trunking.
Comments are based on opinion...not always facts....that's why people use an alias.
Anyone to share the latest SANS document perhaps?
On top of each page is printed in red ( must be important ) This standard is exclusively for ECA.
What does that mean ?
On the bottom of each page, also in red, it says .. Photocopying or reproducing this standard constitutes a violation of SABS Copyright Rules.
Does that mean that copying and pasting sections for discussion here on this forum is not permitted ?
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