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Installation & Owner’s Guide QW-JOIST 9
SECTION 4. Inspection/Testing/Completion
Visual Inspection
When visually checking the panels, look for any signs of damage, wear or scratching that might have occurred
during installation. If any portions of a panel set appear damaged, replace the entire panel set.
Electrical Test
A resistance check across the supply leads using an accurate ohm meter must be made to detect defects to
the system — record the resistance readings. Use the resistance chart in the operating manual to determine
the acceptable readings. Readings should be taken before attaching to joists to ensure no damage occurs to the
panels during installation.
16
”
On Center Width 120V
No of Panel(s) Wattage CURRENT (AMP) High Resistance Limit (ohms) Low Resistance Limit (ohms)
1 10 0.0833 1584 1368
2 20 0.166 792 684
3 30 0.25 528 456
4 40 0.333 396 342
5 50 0.416 316.80 273.60
6 60 0.5 264 228
7 70 0.583 226.28 195.42
8 80 0.666 198 171
9 90 0.75 176 152
10 100 0.833 158.4 136.8
11 110 0.9166 143.99 124.36
12 120 1 132 114
13 130 1.08 121.84 105.23
14 140 1.166 113.14 97.7
15 150 1.250 105.6 91.20
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