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This new edition of UL 1598 is being issued to:
3 N/ t, {; N' \/ Q+ `$ M0 Z1. Revision of bonding circuit impedance test to revert back to the previous UL 1570 series standards $ P- K' H3 J9 N# P+ {' o
2. Add requirements for evaluation of accessible lampholder leads during normal use 3 S# ], e+ ^. s
3. Add requirements for 60°C branch circuit conductors for temperature test exempt luminaires % W2 N, j, n* u. v# c O4 j
4. Add requirements for decorative part securement 8 T* e7 |. _% ` X9 j6 ~2 z. V
5. Add requirements for smaller gage wire conductors for Class 2 power limited circuits - B1 D) _, N( K* c! e/ w
6. Correction of dimensions specified in large scale fallout test * R' U8 n# p/ h% ~7 }+ c
7. Add germicidal lamp marking requirements 8 Y9 m4 ]6 K) y$ G; m- ^
8. Revise requirements for open holes and openings to reduce risk of fire when certain electrical components are used
2 j/ k) \- Y1 L- h& `9. Add torque and strength test requirements for ground-screw assemblies
, H7 ^. S b9 B& G4 Z…………( M) `5 {( M$ k, c
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