Insulation and continuity testers are safer to use
A
Megger product story
Edited by the Engineeringtalk editorial team
Jul 4, 2005
Megger has upgraded its MIT300 range of insulation and continuity testers.
Megger has upgraded its MIT300 range of insulation and continuity testers.
Now rated to Cat IV 300V in addition to the existing Cat III 600V, the new rating is a guide to the instrument's suitability for engineers working outside the premise, either on overhead or underground low voltage supplies.
The new rating demonstrates the ability of the instruments to withstand spikes or surges experienced on electrical supplies.
The updated instruments conform fully to IEC61010 for use in Category IV 300V applications, as well as the existing Cat III 600V, and provides all of the facilities needed to meet insulation testing requirements relating to the current edition of the IEE Wiring Regulations.
"Most electricians' testers will be rated to Cat II or to Cat III".
"These instruments are not designed to be used on higher energy Cat IV circuits".
"However, in reality this does occur, especially where voltage measurement ranges are included in the instrument functionality", explains Mark Hadley of Megger.
"Using a correctly rated instrument is just one of the considerations when implementing safe working practice on electrical supplies, and one that is often overlooked, or rejected on the grounds that there are no suitable commercially available instruments".
"By upgrading the MIT300 series the engineer can be sure of the suitability of the instrument on their particular application".
The MIT300 series of insulation and continuity testers are not only durable and easy to use, but also incorporate a comprehensive set of features designed to ensure operator safety, even under conditions of accidental misuse.
The range includes five models, ensuring an exact match for the needs of every user, all of which offer automatic discharge of the circuit after testing, audible and visual warning if the test probes are applied to a live circuit, and a test inhibit feature which operates automatically under live circuit conditions.
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