ASTM B539-02 PDF

Thank you for interesting in our services. We are a non-profit group that run this website to share documents. We need your help to maintenance this website. Please help us to share our service with your friends. Share Embed Donate. Contact Resistance Ductor Test The contact resistance test commonly known as the Ductor test measures the resistance of electrical connections such as joints, terminations, connectors, etc.

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Thank you for interesting in our services. We are a non-profit group that run this website to share documents. We need your help to maintenance this website. Please help us to share our service with your friends. Share Embed Donate. Contact Resistance Ductor Test The contact resistance test commonly known as the Ductor test measures the resistance of electrical connections such as joints, terminations, connectors, etc. These can be connections between any two conductors, for instance bus-bar sections or cable connections.

Test Criteria The criteria for evaluating the contact resistance of electrical connections largely depends on the type of connection e. These will differ by equipment type and contact material and there is no code or standard that mandates minimum contact resistances. In some cases the Ductor Test result shall be backed up by Thermal Imaging to detect any Hot-Joint on the Bus-Bar System, this test is performed when the switchboard is in operation.

The Ductor test can resolve any miss alignment issues immediately which might occur due to design error, transportation or miss handling during installation.

During the Siemens FAT for the switchboards, wire looping may be used to connect each bus-bar segment. Customer shall always insist for the bus-bar to be fully connected using bolting as per actual condition at site. This DLRO test set accurately measures resistances ranging from 0.

The Megger DLRO is a versatile Ductor that can provide test currents from 10 amps up to amps, subject to the load resistance and supply voltage. For those applications that demand a smooth DC current, the DLRO has extra filtering on the output to reduce mains frequency ripple and can drive amps through a total current loop resistance of 11 milli-ohms.

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AMDAL PLTA PDF

Standard Test Methods for Measuring Resistance of Electrical Connections (Static Contacts)

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