Electricians and electrical engineers need to be aware of new Euro safety measures that will be introduced in July.04.
The legislation – IEC/EN61243-3 – sets new standards for the manufacture and use of portable voltage detectors. It centres on two-pole voltage testers, so is designed to prevent the dangers associated with single-handed operation.
With the introduction of the new standards, it’s worth highlighting the key reasons for using 2 pole testers.
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1. The legal situation is clear – From July 2004 no testing of a current higher than 3.5 mA can occur using a single pole tester. If a higher testing current is required – which is usually the case – a 2 pole tester is mandatory.
2. The legislation demands that the design of a voltage tester considers safety when it comes to applying the tester to voltages exceeding the ELV. Both test handles have to be activated, either by a switch on each handle or by pulling back the protection of the measuring tips, therefore greatly reducing the risk of electric shock to the user.
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3. The legislation regarding the cable connection between the poles is very strict and ensures a safe electrical connection for the whole serviceable life of a compliant voltage tester.
4. The legislation demands higher than current standards of mechanical design from the manufacturer, hopefully leading to sturdier, longer lasting, more accurate products.
For more information see www.cenelec.org
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