Electricitiy + Control February 2015

CABLES + ACCESSORIES

ROUND UP

VdS approval for metal enclosure fire system horn sounders

E2S Warning Signals has gained VdS ap- proval and CPR compliance to directive 3015/2011/EU for its AlertAlarm D112 alarm horn sounder by testing to EN54-3. It com- bines the field-proven electronics of its AlertAlarmA Series with a robust, corrosion resistant marine grade LM6 aluminium al- loy enclosure, giving greater mechanical and UV protection. The D112 has a maximum SPL of 119 dB(A) @ 1 m at the nominal 24 Vdc fire

alarm system operating voltage; the CPR compliance is valid for operation from 18 – 30 Vdc. The 48 Vdc version is also compliant. The VdS approval covers the five most commonly used fire alarm warning tones and also confirms that the units operate to specification under conditions of dry and damp heat, cold, shock and vibration. The aluminium enclosure complies with Type B environmental category making it

suitable for outdoor installation, and so supporting the extension of a fire detection system into areas beyond the relatively be- nign office environment, improving safety. Other tests include EMC, SO 2 corrosion resistance and dust and water ingress. UL approved versions for general signal- ling use are also available. For this version, the aluminium enclosure is sealed to IP66, NEMAType 4, 4X and 3R. Enquiries: Email sales@e2s.com

SEMINAR Best practices in lightning safety and lightning protection Industry specialist consultants INNOPRO are presenting their updated one-day industry-briefing seminar on ‘Best Practices in Lightning Safety and Lightning Protection of Structures and Systems’ in Centurion (Gauteng, South Africa) on 27 March 2015. “Lightning safety and lightning protection is a topic that is often misunderstood, with inappropriate man- agement, strategies, techniques and methodologies being applied as a result.The consequential effects can be severe, both in terms of direct effects and injuries, and in respect of indirect and consequential impacts (including on lost produc- tion and other effects).” “The appropriate application of effective lightning safety and lightning protection strategies and solutions for infra- structure, industry and other sectors is therefore of critical importance”. This was noted by Ian McKechnie, managing director of specialist consultants and forensic engineers INNOPRO. The seminars will be presented by Ian Jandrell and Ian McKechnie, both directors of Innopro. Ian Jandrell is also a Personal Professor, CBI-electric Professor of Light- ning, and Dean of the Faculty of Engineering and the Built Environment, at the University of the Witwatersrand. Ian McKechnie is also an Honorary Research Fellow in the School of Electrical and Information Engineering at the University of theWitwatersrand. These seminars are validated for Continuing Professional Development (CPD) with the Engineering Council of South Africa (ECSA) by the South African Institute of Electrical Engineers (SAIEE) and attendees will earn one credit in the compulsory Category 1. McKechnie noted that the briefing seminars are aimed at industry practitioners at all levels and will be beneficial to persons involved in the design/engineering, management, operation, insurance, risk assessment and/or maintenance of infrastructure and systems that can be affected or influenced by lightning and related electromagnetic interference. He added that health and safety practitioners and other persons responsible for safety at facilities and activities will also find the seminar beneficial. Limited space - pre-booking is essen- tial. Registration forms are available on www.innopro.co.za. Enquiries: Ian McKechnie.Tel. 012 663 4804 or email learning@gafrica.com

Cable and pipe sealing systems for flood protection

The UK subsidiary of global safety seal manufacturer Roxtec has provided cable and pipe sealing systems for a major flood protection project at a UK nuclear power station. Graham O’Hare, managing director of Roxtec’s UK arm, said the firmworked with EDF Energy which operates the Dungeness B nuclear power station on the coast of Kent, England. He said: “Roxtec products were used to seal pipes and cables in existing underground trenches to protect the power station’s diesel generators.The generators are extremely important because they are needed to provide emergency back-up. Furthermore, the trenches go under bund walls, which provide an important secondary line of pro- tection or containment. “ Roxtec was chosen because our seals protect against multiple hazards. The penetration seals meet an IP67 rating for water ingress, H class fire rating and can protect against diesel splashes. Traditional sealants will only protect against one particular hazard and therefore could not meet the demands of this project.” As part of its service, Roxtec engineers visited and surveyed the Dungeness plant then came up with the required designs. Roxtec then manufactured retrofit products whichmeans they can seal around exist- ing cables and pipes so as not to disturb the surrounding infrastructure. Construction of the Dungeness B power station began in 1965 and power generation started there in 1983.Today the site employs 550 full- time employees along with 200 full-time contractors. Its total supply to the UK’s national power grid is 1 040 MW. Enquiries:Visit www.roxtec.com

Graham O’Hare, managing director of Roxtec UK.

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