ERICO CADWELD Electrical Connections - Manual (Page 10)

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Proper inspection of a CADWELD ® connection
relies on the judgment of the field personnel. Look
closely at the size, color, surface finish, and porosity
of the connection.
Following the guidelines below will assist in
making meaningful inspections. Photographs of
good, acceptable, and reject connections appear
on pages 14 – 17.
Size
1. No portion of the conductor within the confines
of the weld should be exposed.
2. Maximum depression under the riser on
horizontal connections (after the slag has been
removed) should be no lower than the top of
the conductor.
A low fill indicates:
(a) Not enough welding material was used.
(b) Excessive leakage of molten metal.
(c) Improper positioning of the conductor
inside the mold.
(d) Movement of conductor.
3. Excessively high fill (tall riser) indicates:
(a) Too large welding material size was used
(connection is still acceptable).
(b) Apparent volume increase due to
contaminants in conductor or mold
(see “Porosity” on page 12).
Unacceptable
Inspection of
CADWELD ® Connections
General Indicators
Strands showing
(below weld level)