Company, Inc.

Location

Electrical Compliance Audit

December 04, 2007

Electrical
Electrical Solutions Corporation
S olutions 2368 Eastman Ave, Suite 13,
C orp.
Ventura CA 93003
Greetings,

On December 4, 2007, Electrical Solutions conducted a field audit of the electrical installation at
location This audit focused primarily on physical construction and did not address any of the
design issues which may need to be revisited. For example, we did not check breaker or
conductor sizes for feeders or branch circuits. We did not check the breaker or overload trip
settings for motors, or compare those settings with code requirements. And we did not check the
conductor fill of electrical conduits or conduct any ampacity correction or derating calculations.

In our experience, these types of code violations are much more common and harder to detect
than the code violations listed in this report. Based on the quality of work found in this
preliminary inspection, we recommend further, more detailed audits.

In the following sections, you will find a thumbnail picture of each area of the plant, along with a
brief description of the code violation(s) which are involved. The thumbnail picture is a
hyperlink to full-sized picture which is located in the “pics” folder on this same CD. Also,
hyperlinks have been added for each code violation, to the reference section at the end of this
document, where more detailed excerpts of the code may be found. If in doubt, however, you
should check the full code reference by looking it up in the 2005 edition of the National Electric
Code (NEC).

What we find most disturbing in this audit is that these code violations do not appear to be the
result of a lapse in judgment, but rather a lack of knowledge of the NEC. The NEC is not
something that is secret or arcane… it is the basic standard for all electrical work in the United
States. Every single journeyman electrician, anywhere in the U.S., should know this code.
Further, it is not a bunch of rules that some inspector thought up just to be difficult… it is a
consensus-based standard that identifies the minimum requirements which are necessary for
safeguarding people and property. Each one of these code violations represents a safety issue that
must be resolved.

Sincerely,

Duane Couch and Rick Hurdle

Electrical Solutions Corporation

Electrical Solutions Corporation Page 2 of 23 Date Printed 12/31/07

PV-V4 - (pic 3694)

• Arcing device must have a seal. Article

501.15(B)(1).
• Field device should have ID tag.
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

PV-V4 - (pic 3695)

• Conductors should have labels identifying the

source of supply.

PV-V4 - (pic 3696)

• Conduit body must be supported. Article

314.23(E).

Note: Sealtite cannot be used to support a conduit

body, and if the nipple is considered to be the
“support” for the conduit body, then it, in turn, would
need to be rigidly supported (just like any other
conduit).

PV-V4 - (pic 3697)

• Conductors should have labels identifying the

source of supply.

Electrical Solutions Corporation Page 3 of 23 Date Printed 12/31/07

V4 Alarm Panel - (pic 3698)

• 7 conduits need proper support.

• Rigid conduit must be securely fastened within
3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• MC cable must be secured within 3 ft of each
connection point if it contains four or fewer
conductors sized no larger than 10 AWG.
Article 330.30.

V4 Micro Motion Transmitter - (pic 3699)

• Arcing device must have seals. Article

501.15(B)(1).
• Sealtite requires bonding jumper. Article
501.30(B).
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.
•

V4 Alarm Panel - (pic 3700)

• All conduits and metal parts, including the

backpanel, need to be bonded together inside
the fiberglass enclosure. Article 250.100.
• Glass fuses are an arcing device – panel must
be purged. Article 501.115(B)(3).
• Unused loose wires should be terminated - not
left open-ended.

V4 Alarm Panel - PLC Analog Pairs - (pic 3701)

• Class 1 signaling circuits must be a minimum

of 18 AWG. Article 725.27 (A).
• Conductors should have labels identifying the
source of supply.
• Analog cables should be shielded to reduce the
electrical noise imposed on them from their
surrounding environment.

Electrical Solutions Corporation Page 4 of 23 Date Printed 12/31/07

V4 Alarm Panel - (pic 3702)

• Construction trash should be removed from the

inside of the panel – bits of wire, insulation,
paper, fiberglass dust, etc.

V4 Alarm Panel - (pic 3703)

• Conductors should have labels identifying the

source of supply.

Note: troubleshooting is extremely difficult when

conductors are not properly identified. Identifying
these conductors during the construction phase in
much, much easier than during a dark and story night.

V4 Transmitters - (pic 3704)

• Arcing devices must have seals. Article

501.15(B)(1). UTV4A, 4TV4B, PIT U-4B, and
PIC V-4A.
• Sealtite cannot be connected directly to a
conduit coupling. Since neither the connector
nor the coupling have tapered threads, it is
impossible to make a lasting, low impedance
connection. Article 250.4(A)(5).

V4 TV-E3 - (pic 3706)

• Sealtite requires bonding jumper. Article

501.30(B).
• Conduit body must be supported. Article
314.23(E).

Electrical Solutions Corporation Page 5 of 23 Date Printed 12/31/07

Cable Support - (pic 3707)

• Conduit cannot be used to support cables.

Article 300.11(B).

SDV-V1 and SDV-V3 - (pic 3709)

• SPDT switches are arcing devices which must

to be sealed. Article 501.15(B)(1).
• Sealtite requires bonding jumper. Article
501.30(B).
• Sealtite cannot exceed 3’ in length. Article
501.10.(B)(2).

PV-V1B - (pic 3710)

• Sealtite to I/P must be supported. Article

350.30.
• Sealtite requires bonding jumper. Article
501.30(B).

T37 above V-2 for GDXE-21 - (pic 3711)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.

Electrical Solutions Corporation Page 6 of 23 Date Printed 12/31/07

Micro Motion Transmitter - (pic 3717)

• Label on device states that transmitter must be

sealed within 18 inches.

Jamesbury Shutdown Valve - (pic 3718)

• Sealtite cannot exceed 3’ in length. Article

501.10.(B)(2).
• Sealtite requires bonding jumper. Article
501.30(B)..

P-3A and P-3B – Shipping Pumps - (pic 3726)

• Seal must be poured. Article 501.15(C)(2).

• Union should be installed on other side of seal.
• Rigid conduit must be securely fastened within
3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• Start/Stop station requires seals and everything
between the Start/Stop and the seal needs to be
explosionproof. Article 501.15(B)(1).

GDXE B-17 Gas Detector - (pic 3727)

• Sealtite requires bonding jumper. Article

501.30(B).
• Label on device indicates that it is a potential
ignition source, and therefore must be sealed.
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

Electrical Solutions Corporation Page 7 of 23 Date Printed 12/31/07

SDV-P3A and SDV-P3B - (pic 3728)

• Sealtite requires bonding jumper. Article

501.30(B).
• Arcing devices should have an explosionproof
union between the device and the seal to
facilitate servicing.

P3A / P3B Alarm Panel - (pic 3729)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• Sealtite cannot exceed 3’ in length. Article
501.10.(B)(2).
• Sealtite requires bonding jumper. Article
501.30(B).

P3A / P3B Alarm Panel - (pic 3730)

All comments from pics 3700 and 3701 apply here.

• Bond conduits and backpanel,
• Purge enclosure
• Terminate all wires
• Minimum wire size: #18 AWG
• Label all conductors
• Install shielded cable

P3A / P3B Alarm Panel - (pic 3731)

• Conductors should have labels identifying the

source of supply.

Note: troubleshooting is extremely difficult when

conductors are not properly identified. Identifying
these conductors during the construction phase in
much, much easier than during a dark and story night.

Electrical Solutions Corporation Page 8 of 23 Date Printed 12/31/07

P3A / P3B Alarm Panel - (pic 3732)

• Construction trash should be removed from the

inside of the panel – bits of wire, insulation,
paper, fiberglass dust, etc.

PIT-3A1, -3B1, -3A2, -3B2 - (pic 3733)

• PIT-3B2 must have a seal installed. Article

501.15(B)(1).
• All 4 transmitters should have unions between
the device and the seal to facilitate servicing.
• Sealtite requires bonding jumper. Article
501.30(B).
• Sealtite cannot exceed 3’ in length. Article
501.10.(B)(2).

Control Valve on Recycle to V-8 - (pic 3734)

• Sealtite requires bonding jumper. Article

501.30(B).
• Sealtite cannot exceed 3’ in length. Article
501.10.(B)(2).
• I/P must be sealed (and have a plug installed on
the non-sealed end). Article 501.15(B)(1).
• Field device should have ID tag.
• Install union between seal and I/P.

LB27 above P3A/P3B Alarm Panel - (pic 3735)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.

Electrical Solutions Corporation Page 9 of 23 Date Printed 12/31/07

T28 above SDV-P3B - (pic 3736)

• Conduit body cover must be installed.

• Check that plug in installed in unused hub.

GDXE B-18 Gas Detector - (pic 3737)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• LB must be explosionproof or placed on other
side of seal. Article 501.15(C)(2).
• Arcing devices should have an explosionproof
union between the device and the seal to
facilitate servicing.

GDXE B-19 Gas Detector - (pic 3738)

• All parts of the conduit system between the

seal and the explosionproof enclosure must be
explosionproof. Article 501.15(C)(2).
• Arcing devices should have an explosionproof
union between the device and the seal to
facilitate servicing.
• Install device >> union >> seal >> LB or
• Device >> union >> EP LB >> seal.

V1 and V3 Alarm Panel - (pic 3740)

• Arcing device must have seals. Article

501.15(B)(1).
• Sealtite requires bonding jumper. Article
501.30(B).
• Sealtite max 3ft Article 501.10(B)(2).
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

Electrical Solutions Corporation Page 10 of 23 Date Printed 12/31/07

V1 and V3 Alarm Panel - (pic 3741)

• Construction trash should be removed from the

inside of the panel – bits of wire, insulation,
paper, fiberglass dust, etc.

V1 and V3 Alarm Panel - (pic 3742)

All comments from pics 3700 and 3701 apply here.

• Bond conduits and backpanel,
• Purge enclosure
• Terminate all wires
• Minimum wire size: #18 AWG
• Label all conductors
• Install shielded cable

V1 and V3 Alarm Panel - (pic 3743)

• Conductors should have labels identifying the

source of supply.

Note: troubleshooting is extremely difficult when

conductors are not properly identified. Identifying
these conductors during the construction phase in
much, much easier than during a dark and story night.

V1 and V3 Alarm Panel - (pic 3745)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.

Electrical Solutions Corporation Page 11 of 23 Date Printed 12/31/07

LY-V4B near V3 - (pic 3746)

• Sealtite requires bonding jumper. Article

501.30(B).
• Sealtite cannot exceed 3’ in length. Article
501.10.(B)(2).
• I/P must be sealed Article 501.15(B)(1).
• Condulet must be supported. Article 314.23(E).
• Union should be installed at device.

V3 Transmitters - (pic 3747)

• Orange plastic dust plugs are not

explosionproof.
• Arcing devices must have a seals. Article
501.15(B)(1).
• Sealtite requires bonding jumper. Article
501.30(B).
• Install devices in the correct order: device >>
union >> seal >> flex.

LY-V5A - (pic 3749)

• Sealtite requires bonding jumper. Article

501.30(B).
• Rigid conduit must be securely fastened within
3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• All parts of the conduit system between the
seal and the explosionproof enclosure must be
explosionproof. Article 501.15(B)(1).

SOV at LV-V5A - (pic 3750)

• Sealtite requires bonding jumper. Article

501.30(B).
• SOV is not permitted to be supported by
conduit. Article 300.11(B).

Electrical Solutions Corporation Page 12 of 23 Date Printed 12/31/07

New J-box between V-5 and V-7 - (pic 3752)

• Enclosure should have ID tag.

• Rigid conduit must be securely fastened within
3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• If the enclosure contains glass fuses, it needs to
be purged. Article 501.115(B)(3).

V8 Transmitters - (pic 3753)

• Conduit system must be arranged so moisture

does not accumulate in equipment. Article
501.15(F)(1).
• Sealtite requires bonding jumper. Article
501.30(B).
• Transmitter may require seal if not factory
sealed. Check device label.

SDV-V8 - (pic 3754)

• Arcing device must have a seal. Article

501.15(B)(1).
• Sealtite requires bonding jumper. Article
501.30(B).
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

SDV-V8 - (pic 3756)

Photo of cover showing that the device is an arcing

device and requires an explosionproof seal.

Electrical Solutions Corporation Page 13 of 23 Date Printed 12/31/07

Transmitter and GUAT26 - (pic 3757)

• Replace CGB on bottom with drain.

• Arcing device must have seal unless “factory
sealed.”. Article 501.15(B)(1).
• Sealtite requires bonding jumper. Article
501.30(B).

PIT-F63 near B1-1 - (pic 3759)

• Arcing device must have seal.. Article

501.15(B)(1).
• Explosionproof union should be installed
between the device and the seal.
• Sealtite requires bonding jumper. Article
501.30(B).

Near B1-1 - (pic 3760)

• Field device should have ID tag.

• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.
• Sealtite requires bonding jumper. Article
501.30(B)..
• Seal must be poured. Article 501.15(C)(2).

Electrical Panel near B1-1 - (pic 3761)

All comments from pics 3700 and 3701 apply here.

• Bond conduits and backpanel,
• Purge enclosure
• Terminate all wires
• Minimum wire size: #18 AWG
• Label all conductors
• Install shielded cable
• ID panel and pour seals.

Electrical Solutions Corporation Page 14 of 23 Date Printed 12/31/07

Modicon Processor P - (pic 3782)

• Inputs and outputs for this PLC have been

scabbed onto the existing wiring without first
determining the exact source. This could
present serious safety and reliability hazards.
• The I/O wiring should be traced out to verify
that fuses are properly installed and neutrals
are properly isolated.

LIT-TK3A - (pic 3783)

• Check area classification. The sample ports

probably make this a Class I, Div 1 area.
• Install boundary seal. Article 501.15(A)(4).
• Replace Sealtite with explosionproof flex
(flexible fitting) and a seal. Article
501.10(A)(2).

LIT-TK3B - (pic 3784)

• Check area classification. The sample ports

probably make this a Class I, Div 1 area.
• Install boundary seal. Article 501.15(A)(4).
• Replace Sealtite with explosionproof flex
(flexible fitting). Article 501.10(A)(2).
• Cannot install a plug in a coupling - neither the
plug nor the coupling have tapered threads.
Article 500.8(D).

Electrical Enclosure near V33A - (pic 3785)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• Raceways cannot be used to support cables.
Article 300.11(B).
• MC cable must be supported with 12 in of
every cabinet. Article 330.30.
• Cabinet should have an ID tag.

Electrical Solutions Corporation Page 15 of 23 Date Printed 12/31/07

Electrical Enclosure near V33A - (pic 3786)

All comments from pics 3700 and 3701 apply here.

• Bond conduits and backpanel,
• Purge enclosure
• Terminate all wires
• Minimum wire size: #18 AWG
• Label all conductors
• Install shielded cable

Electrical Enclosure near V33A - (pic 3787)

• Construction trash should be removed from the

inside of the panel – bits of wire, insulation,
paper, fiberglass dust, etc.

PV-V14 - (pic 3788)

1. Replace plastic dust cap is not explosionproof

plug.
2. Arcing device must have a seal. Article
501.15(B)(1).
3. Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

V14 Valve Switch - (pic 3791)

• Arcing device must have a seal. Article

501.15(B)(1).
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

Electrical Solutions Corporation Page 16 of 23 Date Printed 12/31/07

V14 Valve Switch - (pic 3792)

• Conductors should have labels identifying the

source of supply.

Note: troubleshooting is extremely difficult when

conductors are not properly identified.

Valve V14 - T37 - (pic 3793)

• Rigid conduit must be securely fastened within

3 ft of each enclosure, fitting and conduit body.
Article 344.30.

Note: even though this conduit is supported within 3’

of the conduit body, it is not securely fastened (we
can grab the fitting and move it back and forth.) An
additional support is required for the T37.

V33B - (pic 3794)

• Conduit cannot be used to support cables.

Article 300.11(B).
• Rigid conduit must be securely fastened within
3 ft of each enclosure, fitting and conduit body.
Article 344.30.
• Seal must be poured. Article 501.15(C)(2).

V33A - (pic 3795)

• Rigid conduit must be securely fastened within

3 ft of each enclosure. Article 344.30.
• Arcing device must have a seal. Article
501.15(B)(1) (transmitters)
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing (transmitters).

Electrical Solutions Corporation Page 17 of 23 Date Printed 12/31/07

Enclosure near V33A - (pic 3796)

All comments from pics 3700 and 3701 apply here.

• Bond conduits and backpanel,
• Purge enclosure
• Terminate all wires
• Minimum wire size: #18 AWG
• Label all conductors
• Install shielded cable

Enclosure near V33A - (pic 3797)

• Construction trash should be removed from the

inside of the panel – bits of wire, insulation,
paper, fiberglass dust, etc.

I/P near V33A - (pic 3798)

• Arcing device must have seals. Article

501.15(B)(1).
• Arcing device should have an explosionproof
union between the device and the seal to
facilitate servicing.

V33A Transmitter - (pic 3799)

• Sealtite requires bonding jumper. Article

501.30(B)..

Electrical Solutions Corporation Page 18 of 23 Date Printed 12/31/07

P55A/B near V33A - (pic 3800)

• Arcing device must have seal.. Article

501.15(B)(1) (at bottom of switches).

V19 Transmitter - (pic 3801)

• Arcing device must have seal.. Article

501.15(B)(1) and should have a union.
• Sealtite requires bonding jumper. Article
501.30(B)..
• Rigid conduit at LB is not securely fastened.
Article 344.30.

PIT at V14 - (pic 3802)

• Arcing devices must have seals. Article

501.15(B)(1) (blue Rosemount, GDXE-A9).
• Check I/P. It does not look like it is factory
seal. If the label does not specify, then it must
be sealed also.
• Unions should be installed between seals and
end devices.

Unknown - Not Labeled - (pic 3803)

• Rigid conduit must be securely fastened within

3 ft of each enclosure Article 344.30.
• Switches and equipment should have ID tags.
• Area classification for this area must be
checked. If it is CI, D1, then Sealtite must be
replaced with explosionproof flex, the T37
with a GUAT, and a boundary seal installed.

Electrical Solutions Corporation Page 19 of 23 Date Printed 12/31/07

TotalFlow near V19 - (pic 3804)

1. TotalFlow conduit should be sealed.

Note: TotalFlow equipment usually has a label

indicating that it is suitable for CI, D2 if the latch has a
locking pin installed. This indicates that the flow of
gas to and from the interior of the unit must be
controlled.

E-10 Gas Heat Exchanger - (pic 3806)

• Arcing device must have a seal. Article

501.15(B)(1). Top right transmitter is factory
sealed, the other 3 units need seals and unions.
• Check area classification. This area may need
to have boundary seals installed, especially if
the conduits arriving in this area come from an
unclassified area. Article 501.15(B)(2).

Electrical Solutions Corporation Page 20 of 23 Date Printed 12/31/07

 Code References
(based on the 2005 National Electric Code - NFPA 70).

Article 250.4(A)(5) – General Requirements for Grounding and Bonding

Electrical equipment and wiring and other electrically conductive material likely to
become energized shall be installed in a manner that creates a permanent, low-impedance
circuit facilitating the operation of the overcurrent device….

Article 250.100 – Bonding in Hazardous (Classified) Locations

Regardless of the voltage of the electrical system, the electrical continuity of non-current-
carrying metal parts of equipment, raceways, and other enclosures in any hazardous
(classified) location… shall be ensured by any of the methods specified in 250.92(B)(2)
through (B)(4) that are approved for the wiring method used. One or more of these
bonding methods shall be used whether or not supplementary equipment grounding
conductors are installed.

Article 300.11(B) – Securing and Supporting – General

Raceways shall be used only as a means of support for other raceways, cables, or non-
electric equipment under any of the following conditions:
1. Where the raceway or means of support is identified for the purpose.
2. Where the raceway contains power supply conductors for electrically controlled
equipment and is used to support class 2 circuit conductors that are solely for the
purpose of connection to the equipment control circuits.
3. Where the raceway is used to support boxes or conduit bodies in accordance with
314.23 or to support luminaries (fixtures) I accordance with 410.16(F).

Article 314.23(E) – Raceway Supported Enclosures

Exception: Rigid metal conduit… shall be permitted to support a conduit body of any
size, including a conduit body constructed with only one conduit entry.

Article 330.30 – Securing and Supporting MC Cable

Unless otherwise provided, [MC] cables shall be secured at intervals not exceeding 6 ft.
Cables containing four or fewer conductors sized no larger than 10 AWG shall be secured
within 12 in of every box, cabinet, fitting, or other cable termination.

Article 344.30 – Securing and Supporting Rigid Conduit

Rigid metal conduit shall be securely fastened within 3ft of each outlet box, junction box,
cabinet, conduit body, or other conduit termination… and at intervals not exceeding 10 ft.

Article 350.30 – Securing and Supporting Sealtite

LFMC shall be securely fastened in place by an approved means within 12 in of each
box, cabinet, conduit body, or other conduit termination and shall be supported and
secured at intervals not to exceed 4.5 ft.
Exception No. 3 – Lengths not exceeding 3 ft at terminations where flexibility is
necessary.

Electrical Solutions Corporation Page 21 of 23 Date Printed 12/31/07

Article 500.8(D) – Threading
All NPT threaded conduit and fittings referred to herein shall be threaded with a National
(American) Standard Pipe Taper (NPT) thread that provides a taper of 1 in 16. Conduit
and fittings shall be made wrenchtight to prevent sparking when fault current flows
through the conduit system, and to ensure the explosionproof integrity of the conduit
system where applicable.

Article 501.10(A)(2) – Flexible Connections Class I, Division 1

Where necessary to employ flexible connections, as at motor terminals, flexible fittings
listed for Class I, division 1 locations [explosionproof flex]… shall be permitted.

Article 501.10(B)(2) – Flexible Connections – Class I, Division 2

Where provision must be made for limited flexibility, one or more of the following
[wiring methods] shall also be permitted:
1. Flexible metal fittings
2. Flexible metal conduit with listed fittings
3. Liquidtight flexible metal conduit with listed fittings
4. Liquidtight flexible nonmetallic conduit with listed fittings
5. Flexible cord listed for extra-hard usage and provided with listed bushed fittings.
An additional conductor for grounding shall be included in the flexible cord.
Note: It is our interpretation at ESC that “limited flexibility” cannot extend past the point
where the conduit would have to be “securely fastened in place”. See Article 350.30
Exception No. 3.

Article 501.15(A)(4) –Seals, Boundary – Class I, Division 1

[In a Division 1 location, conduit seals are required] in each conduit run leaving a Class I,
Division 1 location.

Article 501.15(B)(1) – Seals, Enclosure – Class I, Division 2

For connections to enclosures that are required to be explosionproof, a conduit seal shall
be provided in accordance with 501.15(A)(1) and (A)(3). All portions of the conduit run
or nipple between the seal and such enclosure shall comply with 501.10(A).

Article 501.15(B)(2) – Seals, Boundary – Class I, Division 2

[A boundary seal is required] in each conduit run passing from a Class I, Division 2
location into an unclassified location.

Article 501.15(C)(2) – Seals, Sealing Compound

The compound shall provide a seal against passage of gas or vapors through the seal
fitting, shall not be affected by the surrounding atmosphere or liquids, and shall not have
a melting point of less than 200°F.

Article 501.15(F)(1) – Seals, Drainage

Where there is a probability that liquid or other condensed vapor may be trapped within
enclosures for control equipment or at any point in the raceway system, approved means
shall be provided to prevent accumulation…

Electrical Solutions Corporation Page 22 of 23 Date Printed 12/31/07

Article 501.30(B) – Bonding Sealtite – Class I, Division 2
Where… liquidtight flexible metal conduit is used as permitted in 501.10(B) and is to be
relied on to complete as sole equipment grounding path, it shall be installed with internal
or external jumpers in parallel with each conduit and complying with 250.102.

Article 501.115(B)(3) – Fuses – Class I, Division 2

Fuses… shall be permitted if they are within general-purpose enclosures, and if they are
of a type in which the operating element is immersed in oil or other approved liquid, or
the operating element is enclosed within a chamber hermetically sealed against the
entrance of gases and vapors, or the fuse is a nonindicating, filled, current-limiting type.

Article 725.27(A) – Size and Use of Class 1 Circuit Conductors

Conductors of sizes 18 AWG and 16 AWG shall be permitted to be used, provided they
supply loads that do not exceed the ampacities given in 402.5 and are installed in a
raceway, an approved enclosure, or a listed cable.

Electrical Solutions Corporation Page 23 of 23 Date Printed 12/31/07