Scotty,
This cable type (36kv/185mmsq/Al/XLPE/Cu/50mmsq/MDPE) is a common cable on the railway infrastructure and is supplied and installed daily. The cable conductor is indeed a single solid aluminium strand with a diameter of 15.1mm (nominal). The exact specification is available at...
A question has been raised that so far we have not been able to find an answer for. In general it appertains to jointing solid Al conductor together using a Al through ferrule. If the CSA of the solid conductor is 185mmsq, with a diameter of 15.1mm, should we use an Al ferrule that is for...
I don't know where in the world this equipment is but try these companies English companies that supply refurbished electrical sitchgear;
http://www.slaters-electricals.com
http://www.wilsondencol.co.uk
Regards
A device that is manufactured by GE Harris under the trade name of Synergy is bolted to the transformer and samples the gas in oil via a valve on the main tank. This device measures some of the main gases on a timed cycle set by the user. This device can be programmed to alarm at predetrimed gas...
Try this link to the Reyrolle (VA Tech) web site. It does have a data sheet on a 4C21 relay http://www.reyrolle-protection.com/list_by_product.php
Dualrobin
In general I have not found a specific BS on the testing of High Voltage cables. However the industry rule of thumb for DC voltage testing is 1.5 x nominal AC voltage.
I have not seen a CO2 system in 13.8KV switchgear but I have seen a FM-200 system with heat detectors and discharge nozzles. The suppression pipe work and nozzles were located in the auxiliary compartments only and not in the high voltage busbar sections. This switchboard was located in Saudi...