What is the recommended method for checking ohms in switchgear?

The recommended method for checking ohms in switchgear is to use a 1000v Megger. This device is specifically designed for testing insulation resistance and can apply a high voltage (up to 1000 volts) to check the insulation of switchgear and other electrical equipment.

Using a megohmmeter, like a 1000v Megger, allows for accurate measurement of resistance by applying a higher test voltage which can highlight potential insulation failures that might not be detected at lower voltages. This is particularly important in switchgear, as proper insulation resistance is critical for safe and reliable operation, preventing electrical failures and ensuring the longevity of the equipment.

Other devices mentioned, such as an analog multimeter, CLR tester, or insulation tester, may not provide the same level of sensitivity or the appropriate testing voltage needed for these specific applications in switchgear. An analog multimeter is generally used for lower voltage measurements and might not offer the necessary accuracy for high-resistance checks in switchgear, while a CLR tester typically focuses on continuity and resistance testing in different contexts. Thus, the 1000v Megger is the most suitable choice for ensuring effective and comprehensive testing of switchgear resistance.