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Martindale Electric.

A British electrical safety testing equipment manufacturer producing voltage indicators, proving units, socket testers and safe isolation kits used by UK electricians and maintenance engineers to comply with safe working procedures under the Electricity at Work Regulations before working on electrical installations.

Martindale Electric

About Martindale Electric

Martindale Electric is a British manufacturer of electrical safety testing and safe isolation equipment, based in the West Midlands. Its range focuses specifically on the tools electricians and electrical maintenance workers need to work safely on electrical installations, including voltage indicators for proving circuits dead or live, proving units for verifying that the voltage indicator itself is working, socket testers for rapid circuit polarity and RCD checking, and PAT testing equipment for portable appliance testing.

Safe isolation, the process of verifying that a circuit is dead before starting work, is a legal requirement under the Electricity at Work Regulations 1989 and is fundamental to preventing electric shock and electrical fatalities in the workplace. The Health and Safety Executive’s GS38 guidance sets out the properties test equipment should have when used for safe isolation, including the requirement for a voltage indicator rather than a multimeter as the primary detection tool. Martindale Electric’s ACAL and GS38-compliant voltage indicator ranges are designed specifically to meet these requirements.

Martindale’s socket tester range, the MAINS CHECK and related products, gives a quick, simple check of socket outlet wiring for correct polarity, earth continuity and RCD operation. For electricians carrying out periodic inspection work or wiring checks in domestic and commercial premises, a socket tester offers a rapid first screen of socket outlets before the detailed measurements an EICR requires.

Products We Can Supply from Martindale Electric

Voltage indicators and safe isolation kits. The Martindale ACAL 2 and VI-13800 voltage indicator kits detect the presence of AC voltage at 230V and higher in electrical installations. They are GS38-compliant, with shrouded test leads, fused probes and the defined response at phase and neutral that safe isolation requires. Combined safe isolation kits pair a voltage indicator and proving unit in a case for the complete safe isolation procedure in a single product, and this is the most widely used safe isolation kit in the UK electrical industry.

Proving units. The Martindale PU2 and PU3 proving units confirm that a voltage indicator is working correctly before and after use, which is the essential second step in the safe isolation procedure that tells a dead circuit apart from a failed voltage indicator. The proving unit generates a safe low-level AC signal at the indicator’s detection threshold, confirming sensor and audible or visual alarm function without connection to a live supply.

Socket testers. The Martindale MAINS CHECK and GT range of socket testers rapidly check 13A socket outlets for correct wiring (live, neutral, earth), polarity faults, missing earth and live/neutral reversal, with RCD versions that test the trip function of RCD-protected socket outlets. For electricians conducting periodic inspection and testing, socket testers give a rapid first screen of socket circuits before detailed loop and RCD testing.

PAT testing equipment. The Martindale PAT range covers portable appliance testing in line with the IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment. It includes earth bond testers, insulation resistance testers and combined PAT testers for Class I and Class II appliances, with download and reporting functionality for PAT testing programmes that need documentation and records.

Industries

Martindale Electric products are used by electrical contractors, approved electricians, facilities maintenance engineers, building services engineers, PAT testing contractors, and any professional carrying out electrical installation, maintenance, inspection or testing work on UK electrical systems where compliance with safe working procedures under the Electricity at Work Regulations is a legal requirement.

Product Categories

  • Voltage indicators & safe isolation kits
  • Proving units
  • Socket testers
  • PAT testing equipment

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Good to Know

The safe isolation procedure runs as follows: first, prove the voltage indicator works using the proving unit; second, test all conductors and between phases to confirm dead; third, lock off the supply; and fourth, prove the voltage indicator still works. Steps one and four are what tell a dead circuit apart from a failed instrument. If your electricians are skipping the proving unit step, they are not completing the safe isolation procedure and risk a false dead reading. A Martindale combined kit covers all the steps.

Buy Martindale Electric from The Tool & Gauge Company (UK) Limited

The Tool & Gauge Company (UK) Limited supplies Martindale Electric voltage indicators, proving units and safe isolation kits to trade customers, contractors and businesses across the UK and internationally. We order directly from Martindale Electric and their authorised distributors, and can source products across the full range to order. We deliver to any UK mainland address and export to the Middle East, Africa, Asia and beyond.

To enquire about Martindale Electric products, send us a part number, product name or description and we’ll come back with availability and a price the same working day. We supply UK electricians at trade prices, whether you need Martindale VP1 proving units, VI13800 voltage indicators or complete safe isolation kits. Trade accounts with 30-day credit terms are available for qualifying businesses. Get in touch and we’ll take it from there.

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Send us your requirement and we’ll come back with a price, usually the same working day.

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