Does this system violate 110.26 working space

[tom baker]

Attached picture is a chlorination system with a tank on the right, a circulation pump on the left and the control panel above the circulation pump.
The control panel is UL508A, and I don't think the entire system is UL listed.
But the control panel sits above the circulation pump, but it is back and behind, and a pipe from the tank sneaks over under the control panel.
With the pump and pipe, does this system violate 110.26 spaces about electrical equipment, IE the width, height, and foreign systems, per 110.26(E)(1)(a)?

 

[jxofaltrds]

Attached picture is a chlorination system with a tank on the right, a circulation pump on the left and the control panel above the circulation pump.
The control panel is UL508A, and I don't think the entire system is UL listed.
But the control panel sits above the circulation pump, but it is back and behind, and a pipe from the tank sneaks over under the control panel.
With the pump and pipe, does this system violate 110.26 spaces about electrical equipment, IE the width, height, and foreign systems, per 110.26(E)(1)(a)?

What is 110.26(E)(1)(a)? I am using the handbook.

Does 110.26(F) apply?

 

[rlc3854]

This from the 08 NEC, 110.26(E) has to do with headroom. As I see it from the below article your equipment is non-compliant.


(1) Depth of Working Space. The depth of the working
space in the direction of live parts shall not be less than that
specified in Table 110.26(A)(1) unless the requirements of
110.26(A)(1)(a), (A)(1)(b), or (A)(1)(c) are met. Distances
shall be measured from the exposed live parts or from the
enclosure or opening if the live parts are enclosed.
(a) Dead-Front Assemblies. Working space shall not be
required in the back or sides of assemblies, such as deadfront
switchboards or motor control centers, where all connections
and all renewable or adjustable parts, such as fuses
or switches, are accessible from locations other than the
back or sides. Where rear access is required to work on
nonelectrical parts on the back of enclosed equipment, a
minimum horizontal working space of 762 mm (30 in.)
shall be provided.
(b) Low Voltage. By special permission, smaller working
spaces shall be permitted where all exposed live parts
operate at not greater than 30 volts rms, 42 volts peak, or
60 volts dc.
(c) Existing Buildings. In existing buildings where
electrical equipment is being replaced, Condition 2 working
clearance shall be permitted between dead-front switchboards,
panelboards, or motor control centers located
across the aisle from each other where conditions of maintenance
and supervision ensure that written procedures
have been adopted to prohibit equipment on both sides of
the aisle from being open at the same time and qualified
persons who are authorized will service the installation.
(2) Width of Working Space. The width of the working
space in front of the electrical equipment shall be the width
of the equipment or 762 mm (30 in.), whichever is greater.
Table 110.26(A)(1) Working Spaces
Nominal
Voltage to
Ground
Minimum Clear Distance
Condition 1 Condition 2 Condition 3
0?150 914 mm (3 ft) 914 mm (3 ft) 914 mm (3 ft)
151?600 914 mm (3 ft) 1.07 m (3 ft 6 in.) 1.22 m (4 ft)
Note: Where the conditions are as follows:
Condition 1 ? Exposed live parts on one side of the working space
and no live or grounded parts on the other side of the working space,
or exposed live parts on both sides of the working space that are
effectively guarded by insulating materials.
Condition 2 ? Exposed live parts on one side of the working space
and grounded parts on the other side of the working space. Concrete,
brick, or tile walls shall be considered as grounded.
Condition 3 ? Exposed live parts on both sides of the working
space

 

[pfalcon]

Attached picture is a chlorination system with a tank on the right, a circulation pump on the left and the control panel above the circulation pump.
The control panel is UL508A, and I don't think the entire system is UL listed.
But the control panel sits above the circulation pump, but it is back and behind, and a pipe from the tank sneaks over under the control panel.
With the pump and pipe, does this system violate 110.26 spaces about electrical equipment, IE the width, height, and foreign systems, per 110.26(E)(1)(a)?

Reference is 110.26 not 110.26(E)(1)(a).

Per 110.26(F) Exception
Compliant: Control equipment does not require dedicated space.

Per 110.26(B)
Compliant: Area is not being used for storage.

Per 110.26
Judgement: Space must be sufficient. It does not require clear space.

Per 110.26(A)
(1) Compliant: as shown
(2) Compliant: as shown
(3) Judgement: I see no interference from the pump. The pipe impinges on the area. But see 110.26 general. Clear is not required, only sufficient is required.

Presuming I am seeing what I think I'm seeing: I would pass this.