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This new edition of UL 1598 is being issued to: # O8 Q" [5 H- R# f+ o. e' T, {3 Q
1. Revision of bonding circuit impedance test to revert back to the previous UL 1570 series standards
% J, w! h. u0 E: q7 d$ `$ w7 u2. Add requirements for evaluation of accessible lampholder leads during normal use
' a1 m" E( t5 Y, |3 l3. Add requirements for 60°C branch circuit conductors for temperature test exempt luminaires 5 o( b, b& E1 C3 O" i% r3 y5 M* W) U
4. Add requirements for decorative part securement
2 W( H' C( g- `/ ]5. Add requirements for smaller gage wire conductors for Class 2 power limited circuits 3 ?1 |& [# _ s7 Y" P2 W
6. Correction of dimensions specified in large scale fallout test
* A, m5 {1 @5 c" S7. Add germicidal lamp marking requirements " p" F( V7 Z( @& K) z$ ]7 Q8 {
8. Revise requirements for open holes and openings to reduce risk of fire when certain electrical components are used ' x, D- _5 M- b+ A
9. Add torque and strength test requirements for ground-screw assemblies
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