Electric.ie Nov/Dec 18 Edition

ELECTRIC.IE • The Magazine & Website for the Irish Electrical Industry • 39 Appointments Precision Cabl s Cable Installations and Fire Safety – The importance of Fixings I – •‡‡• ƒ ‘†† •‹–—ƒ–‹‘ ˆ‘” ƒ …‘–”ƒ…–‘” –‘ „—› ƒ ’”‡‹—ǡ Š‹‰Š ’‡”ˆ‘”ƒ…‡…ƒ„Ž‡ǡ „—– –Š‡…‘’”‘‹•‡ –Š‡ ‹–‡‰”‹–› ‘ˆ –Š‡ ™Š‘Ž‡ ‹•–ƒŽŽƒ–‹‘ „› —•‹‰ •—„•–ƒ†ƒ”† ƒ……‡••‘”‹‡•Ǥ Ć • ƒ…ƒ„Ž‡ •›•–‡ ’”‘˜‹†‡” ‘ˆ „‘–Š …ƒ„Ž‡• ƒ† ƒ……‡••‘”‹‡•ǡ ”›•‹ƒ ”‘—’ ”‡…‘‰‹•‡• –Šƒ– –Š‡ ’‡”ˆ‘”ƒ…‡ ‘ˆ ƒ› ‹•–ƒŽŽƒ–‹‘ ”‡Ž‹‡• Œ—•– ƒ• —…Š ‘ –Š‡ “—ƒŽ‹–› ‘ˆ –Š‡ Ž‘™‡” ˜ƒŽ—‡ ƒ……‡••‘”‹‡• ƒ• ‘ˆ –Š‡…ƒ„Ž‡Ǥ ‘We know from our own distribution throughout Ireland that demand for Š‹‰ŠǦ“—ƒŽ‹–› Ƥ”‡Ǧ”‡•‹•–ƒ–…ƒ„Ž‡ ‹• strong, but have noted that there is less understanding of the quality issues •—””‘—†‹‰ ƒ……‡••‘”‹‡•ǣ –Š‡ Ƥš‹‰•ǡ glands and connectors that are essential Recent high-profile incidents have thrown the spotlight on the need to ensure fire safety is a prime consideration in the design of both commercial and residential buildings. to ensure a cable installation performs ƒ• ƒ–‹…‹’ƒ–‡† ‹ –Š‡ ‡˜‡– ‘ˆ ƒ Ƥ”‡ǯ ƒ……‘”†‹‰ –‘ ‡”‰—• ǯ ƒŽŽƒ‰Šƒǡ ƒƒ‰‹‰ ‹”‡…–‘”ǡ ”‡…‹•‹‘ ƒ„Ž‡•Ǥ ”›•‹ƒ ”‘—’ ™‘—Ž† ƒŽ™ƒ›• ”‡…‘‡† –‘ —•‡…ƒ„Ž‡ ƒ† ƒ……‡••‘”‹‡• ˆ”‘ ƒ •‹‰Ž‡ ƒ—ˆƒ…–—”‡” ƒ• –Š‡”‡ ‹• –Š‡ ƒ ƒ••—”ƒ…‡ –Šƒ– –Š‡ ‡–‹”‡ •›•–‡ ™‹ŽŽ „‡ †‡•‹‰‡† –‘ ˆ—…–‹‘ ƒ• ƒ ‹–‡‰”ƒ–‡† ™Š‘Ž‡ ƒ† ™‹ŽŽ ‘– „‡ …‘’”‘‹•‡† „› ƒ •‹‰Ž‡ ™‡ƒ Ž‹Ǥ Š‡› ™‘—Ž† ƒŽ™ƒ›• ƒ†˜‹•‡…—•–‘‡”• –‘ ˆ‘…—• ‘ –Š‡ †‘…—‡–ƒ–‹‘ „‡Š‹† ƒ› ƒ—ˆƒ…–—”‡”ǯ•…Žƒ‹•Ǥ ŽŽ ͂ ƒ……‡••‘”‹‡• ƒ”‡ ƒ—ˆƒ…–—”‡† –‘ ”‹–‹•Šǡ —”‘’‡ƒ ƒ† ‹–‡”ƒ–‹‘ƒŽ –ƒ†ƒ”†•Ǥ Š‡•‡ ƒ”‡ǣ • ͢ͲʹʹʹǣͲͰͱͳ ƒ„Ž‡ ‰Žƒ†• ˆ‘” Shedding some light on Cable Support Spacing ‡ ‘ˆ –Š‡ ‘•– •‹‰‹Ƥ…ƒ– ‘ˆ –Š‡ ’”‘’‘•‡†…Šƒ‰‡• –‘ –Š‡ ™‹”‹‰ ”‡‰—Žƒ–‹‘• ‹• ˆ‘” Ƥ”‡ ”‡•‹•–ƒ–…ƒ„Ž‡ •—’’‘”–• –‘ „‡ —•‡† –Š”‘—‰Š‘—– ƒ ‹•–ƒŽŽƒ–‹‘Ǥ Š‡ ͟”† ƒ‡†‡– ‘ˆ –Š‡ ͱͷ–Š ‡†‹–‹‘ ƒ†‡ ‹– ƒ ”‡“—‹”‡‡– ‘Ž› ˆ‘”…ƒ„Ž‡• ‹ ‡•…ƒ’‡ ”‘—–‡• –‘ —•‡ Ƥ”‡ ”‡•‹•–ƒ– …ƒ„Ž‡ •—’’‘”–•Ǥ ‘™‡˜‡”ǡ —†‡” –Š‡ ’”‘’‘•‡† ”‡˜‹•‹‘ –Š‡ ”‡“—‹”‡‡– ˆ‘” Ƥ”‡ ”‡•‹•–ƒ–…ƒ„Ž‡ •—’’‘”–• Šƒ• „‡‡ ‡š’ƒ†‡† –‘ ‹…Ž—†‡…ƒ„Ž‡• ‹ ƒŽŽ ƒ”‡ƒ•ǡ ”‡‰ƒ”†Ž‡•• ‘ˆ ™Š‡–Š‡” ‘” ‘– –Š‡…ƒ„Ž‡• ƒ”‡ ‹•–ƒŽŽ‡† ‹ ƒ ‡•…ƒ’‡ ”‘—–‡Ǥ What clip spacing is required? ‡…‘‡†‡†…Ž‹’ •’ƒ…‹‰• ƒ”‡ ‰‹˜‡ ‹ ‘—” „”‘…Š—”‡ ƒ† ƒ”‡ ‰‡‡”ƒŽŽ› ͟͜͜ Š‘”‹œ‘–ƒŽ ƒ† ͜͜͠ ˜‡”–‹…ƒŽ installation. What clips are required? Š‡ Ƥš‹‰ •›•–‡ ‹• –Š‡ ˆƒ•–‡•– ™ƒ› –‘ ‹•–ƒŽŽ ‘•–…ƒ„Ž‡• Ȃ —•‹‰ ’Ž‹– —Ž•ƒ͂ ‰ƒ• ƒ‹Ž‹‰ –‡…Š‘Ž‘‰›Ǥ Š‡…Ž‹’ ‹• ƒ†‡ ˆ”‘ ‘ ”—•–‹‰ ‡Ž‡…–”‹…ƒŽ ‹•–ƒŽŽƒ–‹‘• • ͢ͱͲͳͤǦͱ ‘’”‡••‹‘ ƒ† ‡…Šƒ‹…ƒŽ…‘‡…–‘”• ˆ‘” ’‘™‡”…ƒ„Ž‡ • Ͷͱ͹ͱʹ ƒ„Ž‡…Ž‡ƒ–• ˆ‘” ‡Ž‡…–”‹…ƒŽ installations • ͵Ͱͳ͹ͳ ‘™ ˜‘Ž–ƒ‰‡ Œ‘‹–• Š‡ ͂ ’”‘†—…– ”ƒ‰‡ ‹• –Š‡ ”‡•—Ž– ‘ˆ ‘˜‡” ͱͰͰ ›‡ƒ”• ‘ˆ…ƒ„Ž‡ ƒ……‡••‘”› †‡˜‡Ž‘’‡– ƒ† “—ƒŽ‹–› ‡‰‹‡‡”‹‰ǡ •–ƒ”–‡† „› ƒ†…‘–‹—‡† ‹ –Š‡ Ͳͱ•– ‡–—”› „› ”›•‹ƒ ƒ„Ž‡ ƒ† ›•–‡• –†ǡ Ǥ ŽŽ ͂ ƒ……‡••‘”‹‡• ƒ”‡ ƒ—ˆƒ…–—”‡† –‘ ”‹–‹•Šǡ —”‘’‡ƒ ƒ† –‡”ƒ–‹‘ƒŽ –ƒ†ƒ”†•Ǥ Proposed changes to the Wiring Regulations, also known as BS7671, were published on 1st July 2017. While the revised document does touch on the subject of cable supports, it does not detail what the distance between cable supports should be. Here we set out to shed some light on the issue of cable support distances…. •–ƒ‹Ž‡•• •–‡‡Ž ™‹–Š ’‘™†‡” …‘ƒ–‹‰Ǥ ‹– ‹…Ž—†‡• ƒŽŽ ’ƒ”–• ‡…‡••ƒ”› –‘ ‹•–ƒŽŽ ͜͜͡…Ž‹’• ™‹–Š –Š‡ ’Ž‹– —Ž•ƒ Ƥš‹‰ –‘‘Ž ƒ˜ƒ‹Žƒ„Ž‡ •‡’ƒ”ƒ–‡Ž›Ǥ Š‡ –‘‘Ž —•‡• ƒ‹Ž‹‰ –‡…Š‘Ž‘‰› –‘ Ƥš –Š‡…Ž‹’ •‡…—”‡Ž› ‘–‘ ƒ ™‹†‡ ”ƒ‰‡ ‘ˆ ƒ–‡”‹ƒŽ• ‹…Ž—†‹‰ …‘…”‡–‡ǡ •–‡‡Žǡ…‘’‘•‹–‡ •–‡‡Ž †‡…‹‰ǡ ƒ•‘”› ƒ† „Ž‘… ™‘”Ǥ ‘’’‡” Dz dz…Ž‹’• ‘” •–‡‡Ž –‹‡•…ƒ ƒŽ•‘ „‡ —•‡† –‘ ‹•–ƒŽŽ •‘‡…ƒ„Ž‡ –›’‡• „—– ’Žƒ•–‹…‘” ƒŽ—‹‹—…Ž‹’• •Š‘—Ž† ‘– „‡ —•‡† ƒ• •‘Ž‡ ‡ƒ• ‘ˆ •—’’‘”–Ǥ Ž—‹‹— ƒ† ’Žƒ•–‹……Ž‹’•…ƒ ‡ƒ•‹Ž› ‡Ž– ‘” „—” †—”‹‰ ƒ Ƥ”‡ ƒ† –Š‡…ƒ„Ž‡ ƒ›…‘ŽŽƒ’•‡Ǥ Ž‡ƒ•‡ —•‡ †ƒ–ƒ •Š‡‡–• ˆ‘” ”‡ˆ‡”‡…‡ —„‡”•Ǥ What Glands are required? ”›•‹ƒ ›Ž‘ ‰Žƒ†• ƒ”‡ ”‡…‘‡†‡† ˆ‘” ‰‡‡”ƒŽ ‹•–ƒŽŽƒ–‹‘•Ǥ Š‡ ‰Žƒ† ‹• ‘– ’ƒ”– ‘ˆ –Š‡ Ƥ”‡ ”‡•‹•–ƒ– …ƒ„Ž‡ •—’’‘”– „—– ‹• ”‡…‘‡†‡† –‘ ”‡†—…‡ –Š‡ ‹‰”‡•• ‘ˆ ƒ‹”„‘”‡ †—•– ’ƒ”–‹…Ž‡•Ǥ ”ƒ•• ‘” •–‡‡Ž ‰Žƒ†• ƒ› ƒŽ•‘ be used. Prysmian and BiCon products delivered to you in Ireland by Precision Cables - www.precisioncables.ie