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Unsafe workpractices / Hazzards overlooked

Preventable accidents and fatality's are the result of not taking advantage of lessons already learned and the collective knowledge/expertise of the international community in accident prevention. The following is a list of unsafe work practices a...

Resistance threshold limits and the importance of maintainence

Resistance values in excess of resistance threshold limits in short-circuiting devices render the device ineffective. In the event of energisation, high resistance short-circuiting equipment may disrupt the supply at source, but it cannot protect ...

No review or upgrade of electrical safety equipment in 60 years

It beggars belief the number of companies who have not reviewed or upgraded their earthing and short-circuiting equipment for the past 60 years.  In this regard Ireland is the only country in Europe that entrusts the lives of its workers to unprov...

Safe levels of current in the human body

There is a mistaken belief that a short circuiting device will prevent current flow in the human body "Not so". An Earthing and short circuiting device can only limit the current flow through the human body.

GUIDE TO FAULT LEVELS AND SUITABLE EARTHING EQUIPMENT

Customers have no control over incoming supply fault levels and utility suppliers have no obligation or policy to keep customers informed of changing fault levels. Fault levels may change due to switching arrangements or changing of cables and eq...

FIT FOR PURPOSE

An earthing device or something that looks like an earthing device. It is unlikely that a person will get a second chance in an electrical accident and also worth remembering that the fatality rate for electrical accidents is seven times greater t...

GUIDE TO SELECTING APPROPRIATE CONDUCTOR

GUIDE TO SELECTING APPROPRIATE CONDUCTOR Higher temperature levels are now allowed under IS EN 61230:2008 to accommodate lighter equipment, the only consideration is that temperature levels do not produce poisonous gases in confined areas or ...

Principles of short circuiting for human protection

A short-circuiting device does not and cannot prevent current flow in the human body, it can only limit the current flow.  International Safety Standards are designed to limit the current flow through the human body to a safe level in the event of...

Markings in compliance with IS EN 61230:2008

An Earthing & shortcircuiting device must be marked and labelled to provide the operator with sufficient information to protect him/her from the prevailing hazard. Example: steady fault current, Peak factor & tripping times.

TEST, INSPECT, MAINTAIN AND REPAIR OF GROUNDING EQUIPMENT

TEST, INSPECT,MAINTAIN AND REPAIR OF GROUNDING EQUIPMENT. The provision of proper work equipment, properly maintained, along with test and inspection records is a requirement under a number of Regulations in S.I. No. 299 of 2007. Resista...

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“SAFELINE is our chosen system which effectively earths our entire range of L.V. distribution installations, ensures maximum safety and assists us in complying with the latest safety legislation. Its modular design and easy application facilitates earthing at any point on an installation.” ESB Electric Ireland - Electricity Supply Board.

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