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September 17, 2008
SUMMARY OF REQUIREMENTS
The following is a brief summary of the new and revised paragraphs in the Standard for Safety,
Luminaires, UL 1598, Edition 3. Those that require action to determine compliance have a future
Effective Date of September 17, 2010 and those that require no action are effective on the date of
publication.
Paragraphs
6.14.1.1, 17.2
General Subject and Comment
Bonding circuit efficacy determined by resistance measurement. If
greater than 0.10 ohm then Bonding impedance test required. No action
required, revisions clarify current practice.
18.2.1.4, 5.7.1.7,
6.14.2.10, 6.14.3.1,
6.14.3.2, 6.14.3.3,
16.16.3, 16.17.2
Correction of Clause references, no action required.
6.13.2.5, 16.38
Manufacturers of luminaires with the lampholder leads accessible with
the luminaire fully assembled must submit them to determine
compliance with the Lampholder Lead Pull test.
7.2.3.3
Restores the first edition requirement inadvertently omitted in the second
edition of UL1598. No action required, current practice.
5.10.12
Manufacturers of luminaires with decorative parts secured by friction or
adhesive alone must submit them for testing.
6.9.4
Permits conductors smaller than 24 AWG under specified conditions. No
action required, less stringent requirement.
12.2.3.2.2
Corrects dimensions of the test pan. No action required.
8.6.6
Adds specified marking for luminaires with germicidal lamps. Current
practice, no action required.
10.4.3
Permits open holes without baffles under specified conditions in
electrical enclosures that house electrical components. No action
required, less stringent requirement.
6.14.2.9, 16.39, 18.6
Adds ground screw torque test. Requires production line testing and
record keeping.
9.4.1.1, 9.4.2.1
Revises marking to incorporate new ANSI lamp codes identifying MH
lamps that comply with the UV limits in ANSI 78.380 . Requires report
revision to reflect new markings.
6.15.1.1(g), 11.3.12,
16.40
Adds cable pull test for luminaire wiring compartments with integral
strain relief clamps. No action required, current practice.
11.7.1.12
Adds marked spacing canopy luminaire temperature test. No action
required, restores a test that was inadvertently omitted.
Table 14.1.2, Item 22
Adds minimum temperature limit for thermoplastic fluorescent
lampholder and correlates it with UL496. No action required, current
practice is to limit to the material RTI.
Subject:
1598
Paragraphs
Page 2 of 2
September 17, 2008
General Subject and Comment
12.2.4.6
Corrects terminology in air-handling luminaire marking. Manufacturers of
air-handling luminaires will need to have their report updated to reflect
this change.
Table 19.8.2
Deletes obsolete test lamps. No action required,
10.2.5 (USA)
Increases the weight limit for a wall-mounted luminaire solely supported
by a junction box to 50 pounds. No action required, reverts back to
Edition 1 of UL1598.
6.16.1
Deletes the minimum volume of a field-wiring compartment. No action,
less stringent requirement.
14.1.5
Deletes the dielectric withstand test immediately following the
temperature test. No action required.
11.8.6
Deletes suspended ceiling luminaires. No action required
19.10.1
Deletes construction detail for the temperature test ceiling & wall that
has no impact on test results. No action required.
16.3.8
Revises five inch flame test pass / fail criteria to align with UL746C,
making it more objective. No action required
8.8.1
Manufacturers of fluorescent luminaires with bi-pin lampholders and
electronic instant-start ballasts will have to use either Type CC ballasts
or lampholders marked with an “I” in a circle and have their files revised.
9.3.1
Revises marking to incorporate new ANSI lamp codes identifying MH
lamps that comply with the lamp rupture criteria in ANSI 78.380.
Requires report revision to reflect new markings.
10.3.13(CAN)
Revision clarifies that requirement applies only to poles > 4m. No action
required.
5.7.1.2 (c), 16.41
Adds sample conditioning that was inadvertently omitted from the impact
test protocol to reflect current practice. No action required.
Table 7.3.3.1 & Table
7.3.3.2
Moves the G8 lamp base configuration from the low voltage lamp base
table to the line voltage table. No action required.
2; 5.8.1; Tables
6.9.2(USA) and
11.6.2.1(USA); Fig.
7.2.1.1; 11.8.5.2;
16.5.5.4; 16.21.2.1;
16.26.15; Table
19.3.3.1; Fig.
19.14.1.2; 19.14.3.1;
Annex A
Editorial revisions no action required.
Multiple Mexico only
requirements
Editorial changes to clarify the intent of requirements for Mexico. No
action required.
8.9(CAN) &
8.10(CAN)
Manufacturers of fluorescent luminaires with bi-pin lampholders,
intended for installation on branch circuits exceeding 150 V to ground
Listed for Canada (cUL), need to inform UL how they intend to comply
with the Canadian disconnect requirements. Compliance to be
determined by the UL Field Rep at the next factory inspection