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This new edition of UL 1598 is being issued to:
$ x' Y5 ?2 V! m1. Revision of bonding circuit impedance test to revert back to the previous UL 1570 series standards ( }) n. q# g1 T, z6 r) d
2. Add requirements for evaluation of accessible lampholder leads during normal use " W1 q3 q+ f" k# ]- `, L+ |: B
3. Add requirements for 60°C branch circuit conductors for temperature test exempt luminaires , T! ]" A9 S3 V2 ~
4. Add requirements for decorative part securement
& t9 N3 b+ D5 M8 o1 o. j( ~5. Add requirements for smaller gage wire conductors for Class 2 power limited circuits $ r- m5 I- E9 b0 _; ?4 K' j
6. Correction of dimensions specified in large scale fallout test ' J, r$ e: q% o; A
7. Add germicidal lamp marking requirements ) p# t% R w. T3 B& O
8. Revise requirements for open holes and openings to reduce risk of fire when certain electrical components are used 4 t. M8 U3 t) f& K# e
9. Add torque and strength test requirements for ground-screw assemblies % N& N4 y4 k$ C, X* ^ K) T
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