ERICO CADWELD Electrical Connections - Manual (Page 23)

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Below are typical field situations related to
CADWELD
® ONE SHOT connections.
Problem A
Weld does not “stick” to ground rod.
Remedy:
1. Ground rod must be cleaned with a rasp to
bright metal. All scale and/or other coating must
be removed. Wire brushing will not suffice.
Grease must be removed with a safety solvent
before cleaning.
2. If conductors are moist, heat with a torch. Any
carbon deposit from the flame must be removed.
Problem b
Porous connections.
Remedy:
1. Dry the conductors by heating with a torch.
Problem C
Discolored, blackened connections.
Remedy:
1. Remove insulation and clean oil from conductor
with a safety solvent. Then, dry surfaces before
welding.
Problem D
Welding material leaks.
Remedy:
1. CADWELD ONE SHOT mold is wrong size.
See catalog.
Problem e
Insufficient fill metal.
Remedy:
1. Conductor not properly positioned in CADWELD
ONE SHOT mold.
Field Situation Guide for
CADWELD ® ONE SHOT
Applications