Cembre
Ever experienced a problem with a
failed connection?
‘It’s a fact that, however hi-tech the equipment, the integrity of its seemingly ‘simple’ electrical connections is fundamental to its operation.
Reliability, Safety, Reputation and Livelihood are at risk when insufficient attention is paid at this basic level.
Even experienced Electrical Engineers familiar with the requirements of codes of practice BS7609 and BS7727 look for guidance when deciding whether to trust the provenance of many of the myriad of connectors available today.
These standards govern the use of Copper tube and Insulated compression connectors and advise that best practice for good electrical
connections is to use a matched system of terminations, crimping tools and die sets.
Whatever size, type and material the connector to be
crimped - insulated Red, Blue or Yellow (pic1) commonly
used in control circuits or 800sqmm 4-hole Transformer
lug (pic2) - the OEM/Contractor should willingly provide
their Customer with the Cembre assurances that:
- The current carrying capacity (related to the Copper cross
sectional area) of the termination at least equals that of the
cable being connected. Low price alternatives may be only
‘thin wall’ connectors having too little Copper to carry the
designated full load current without over-heating.
Pic 1 Insulated Red, Blue and Yellow connectors
Pic 2 800sqmm Transformer lug
Pic 3 Crimpstar crimping tools
- Terminations are fully annealed post-forming to optimise
electrical contact and remove residual stresses thereby
improving mechanical performance over their operating
life. Again price may be the enemy of integrity.
- Crimping tools and die sets are matched with the termina
tions to ensure consistent, high-integrity connections.
Pic 4 - Smartool reporting feature on 18v crimping tools.
Cembre is one of few manufacturers to offer a truly
matched system...by design. (pic3)
In addition, Cembre’s new generation of 18v crimping
tools for 10-400sqmm lugs has Smartool software (pic4)
that enables the user to view, instantaneously, the force
applied to each crimp as it is completed. And the data
for up to 200,000 cycles is easily downloaded, printed
and provided to the customer to verify accordance with
BS7609 and BS7727.
No surprise then that Cembre’s Best Practice Crimping
Workshops have become the must-have on-site Tool Box
Talks for those involved, particularly, in Electrical Design,
Installation and Maintenance.
Never experienced a problem with a failed connection? You must already be a Cembre customer. If not please call us to arrange for our local
engineer to visit.
Cembre Ltd - +44 1675 470 440 - [email protected] - www.cembre.co.uk
Issue 23 PECM
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